Commit Graph

813192 Commits

Author SHA1 Message Date
Vasily Averin
9e235ce6fa memcg: enable accounting of ipc resources
commit 18319498fdd4cdf8c1c2c48cd432863b1f915d6f upstream.

When user creates IPC objects it forces kernel to allocate memory for
these long-living objects.

It makes sense to account them to restrict the host's memory consumption
from inside the memcg-limited container.

This patch enables accounting for IPC shared memory segments, messages
semaphores and semaphore's undo lists.

Link: https://lkml.kernel.org/r/d6507b06-4df6-78f8-6c54-3ae86e3b5339@virtuozzo.com
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Andrei Vagin <avagin@gmail.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Borislav Petkov <bp@suse.de>
Cc: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Dmitry Safonov <0x7f454c46@gmail.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Cc: Jeff Layton <jlayton@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Jiri Slaby <jirislaby@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kirill Tkhai <ktkhai@virtuozzo.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Roman Gushchin <guro@fb.com>
Cc: Serge Hallyn <serge@hallyn.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Yutian Yang <nglaive@gmail.com>
Cc: Zefan Li <lizefan.x@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Hugo SIMELIERE <hsimeliere.opensource@witekio.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-04 13:13:07 +02:00
Chen Ridong
27d6dbdc64 cgroup/cpuset: Prevent UAF in proc_cpuset_show()
commit 1be59c97c83ccd67a519d8a49486b3a8a73ca28a upstream.

An UAF can happen when /proc/cpuset is read as reported in [1].

This can be reproduced by the following methods:
1.add an mdelay(1000) before acquiring the cgroup_lock In the
 cgroup_path_ns function.
2.$cat /proc/<pid>/cpuset   repeatly.
3.$mount -t cgroup -o cpuset cpuset /sys/fs/cgroup/cpuset/
$umount /sys/fs/cgroup/cpuset/   repeatly.

The race that cause this bug can be shown as below:

(umount)		|	(cat /proc/<pid>/cpuset)
css_release		|	proc_cpuset_show
css_release_work_fn	|	css = task_get_css(tsk, cpuset_cgrp_id);
css_free_rwork_fn	|	cgroup_path_ns(css->cgroup, ...);
cgroup_destroy_root	|	mutex_lock(&cgroup_mutex);
rebind_subsystems	|
cgroup_free_root 	|
			|	// cgrp was freed, UAF
			|	cgroup_path_ns_locked(cgrp,..);

When the cpuset is initialized, the root node top_cpuset.css.cgrp
will point to &cgrp_dfl_root.cgrp. In cgroup v1, the mount operation will
allocate cgroup_root, and top_cpuset.css.cgrp will point to the allocated
&cgroup_root.cgrp. When the umount operation is executed,
top_cpuset.css.cgrp will be rebound to &cgrp_dfl_root.cgrp.

The problem is that when rebinding to cgrp_dfl_root, there are cases
where the cgroup_root allocated by setting up the root for cgroup v1
is cached. This could lead to a Use-After-Free (UAF) if it is
subsequently freed. The descendant cgroups of cgroup v1 can only be
freed after the css is released. However, the css of the root will never
be released, yet the cgroup_root should be freed when it is unmounted.
This means that obtaining a reference to the css of the root does
not guarantee that css.cgrp->root will not be freed.

Fix this problem by using rcu_read_lock in proc_cpuset_show().
As cgroup_root is kfree_rcu after commit d23b5c577715
("cgroup: Make operations on the cgroup root_list RCU safe"),
css->cgroup won't be freed during the critical section.
To call cgroup_path_ns_locked, css_set_lock is needed, so it is safe to
replace task_get_css with task_css.

[1] https://syzkaller.appspot.com/bug?extid=9b1ff7be974a403aa4cd

Fixes: a79a908fd2 ("cgroup: introduce cgroup namespaces")
Signed-off-by: Chen Ridong <chenridong@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Shivani Agarwal <shivani.agarwal@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-04 13:13:07 +02:00
Niklas Cassel
d9c4df80b1 ata: libata-core: Fix null pointer dereference on error
commit 5d92c7c566dc76d96e0e19e481d926bbe6631c1e upstream.

If the ata_port_alloc() call in ata_host_alloc() fails,
ata_host_release() will get called.

However, the code in ata_host_release() tries to free ata_port struct
members unconditionally, which can lead to the following:

BUG: unable to handle page fault for address: 0000000000003990
PGD 0 P4D 0
Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI
CPU: 10 PID: 594 Comm: (udev-worker) Not tainted 6.10.0-rc5 #44
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-2.fc40 04/01/2014
RIP: 0010:ata_host_release.cold+0x2f/0x6e [libata]
Code: e4 4d 63 f4 44 89 e2 48 c7 c6 90 ad 32 c0 48 c7 c7 d0 70 33 c0 49 83 c6 0e 41
RSP: 0018:ffffc90000ebb968 EFLAGS: 00010246
RAX: 0000000000000041 RBX: ffff88810fb52e78 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff88813b3218c0 RDI: ffff88813b3218c0
RBP: ffff88810fb52e40 R08: 0000000000000000 R09: 6c65725f74736f68
R10: ffffc90000ebb738 R11: 73692033203a746e R12: 0000000000000004
R13: 0000000000000000 R14: 0000000000000011 R15: 0000000000000006
FS:  00007f6cc55b9980(0000) GS:ffff88813b300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000003990 CR3: 00000001122a2000 CR4: 0000000000750ef0
PKRU: 55555554
Call Trace:
 <TASK>
 ? __die_body.cold+0x19/0x27
 ? page_fault_oops+0x15a/0x2f0
 ? exc_page_fault+0x7e/0x180
 ? asm_exc_page_fault+0x26/0x30
 ? ata_host_release.cold+0x2f/0x6e [libata]
 ? ata_host_release.cold+0x2f/0x6e [libata]
 release_nodes+0x35/0xb0
 devres_release_group+0x113/0x140
 ata_host_alloc+0xed/0x120 [libata]
 ata_host_alloc_pinfo+0x14/0xa0 [libata]
 ahci_init_one+0x6c9/0xd20 [ahci]

Do not access ata_port struct members unconditionally.

Fixes: 633273a3ed ("libata-pmp: hook PMP support and enable it")
Cc: stable@vger.kernel.org
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Link: https://lore.kernel.org/r/20240629124210.181537-7-cassel@kernel.org
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Signed-off-by: Oleksandr Tymoshenko <ovt@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-04 13:13:07 +02:00
Ricardo Ribalda
34666cab86 media: uvcvideo: Fix integer overflow calculating timestamp
commit 8676a5e796fa18f55897ca36a94b2adf7f73ebd1 upstream.

The function uvc_video_clock_update() supports a single SOF overflow. Or
in other words, the maximum difference between the first ant the last
timestamp can be 4096 ticks or 4.096 seconds.

This results in a maximum value for y2 of: 0x12FBECA00, that overflows
32bits.
y2 = (u32)ktime_to_ns(ktime_sub(last->host_time, first->host_time)) + y1;

Extend the size of y2 to u64 to support all its values.

Without this patch:
 # yavta -s 1920x1080 -f YUYV -t 1/5 -c /dev/video0
Device /dev/v4l/by-id/usb-Shine-Optics_Integrated_Camera_0001-video-index0 opened.
Device `Integrated Camera: Integrated C' on `usb-0000:00:14.0-6' (driver 'uvcvideo') supports video, capture, without mplanes.
Video format set: YUYV (56595559) 1920x1080 (stride 3840) field none buffer size 4147200
Video format: YUYV (56595559) 1920x1080 (stride 3840) field none buffer size 4147200
Current frame rate: 1/5
Setting frame rate to: 1/5
Frame rate set: 1/5
8 buffers requested.
length: 4147200 offset: 0 timestamp type/source: mono/SoE
Buffer 0/0 mapped at address 0x7947ea94c000.
length: 4147200 offset: 4149248 timestamp type/source: mono/SoE
Buffer 1/0 mapped at address 0x7947ea557000.
length: 4147200 offset: 8298496 timestamp type/source: mono/SoE
Buffer 2/0 mapped at address 0x7947ea162000.
length: 4147200 offset: 12447744 timestamp type/source: mono/SoE
Buffer 3/0 mapped at address 0x7947e9d6d000.
length: 4147200 offset: 16596992 timestamp type/source: mono/SoE
Buffer 4/0 mapped at address 0x7947e9978000.
length: 4147200 offset: 20746240 timestamp type/source: mono/SoE
Buffer 5/0 mapped at address 0x7947e9583000.
length: 4147200 offset: 24895488 timestamp type/source: mono/SoE
Buffer 6/0 mapped at address 0x7947e918e000.
length: 4147200 offset: 29044736 timestamp type/source: mono/SoE
Buffer 7/0 mapped at address 0x7947e8d99000.
0 (0) [-] none 0 4147200 B 507.554210 508.874282 242.836 fps ts mono/SoE
1 (1) [-] none 2 4147200 B 508.886298 509.074289 0.751 fps ts mono/SoE
2 (2) [-] none 3 4147200 B 509.076362 509.274307 5.261 fps ts mono/SoE
3 (3) [-] none 4 4147200 B 509.276371 509.474336 5.000 fps ts mono/SoE
4 (4) [-] none 5 4147200 B 509.476394 509.674394 4.999 fps ts mono/SoE
5 (5) [-] none 6 4147200 B 509.676506 509.874345 4.997 fps ts mono/SoE
6 (6) [-] none 7 4147200 B 509.876430 510.074370 5.002 fps ts mono/SoE
7 (7) [-] none 8 4147200 B 510.076434 510.274365 5.000 fps ts mono/SoE
8 (0) [-] none 9 4147200 B 510.276421 510.474333 5.000 fps ts mono/SoE
9 (1) [-] none 10 4147200 B 510.476391 510.674429 5.001 fps ts mono/SoE
10 (2) [-] none 11 4147200 B 510.676434 510.874283 4.999 fps ts mono/SoE
11 (3) [-] none 12 4147200 B 510.886264 511.074349 4.766 fps ts mono/SoE
12 (4) [-] none 13 4147200 B 511.070577 511.274304 5.426 fps ts mono/SoE
13 (5) [-] none 14 4147200 B 511.286249 511.474301 4.637 fps ts mono/SoE
14 (6) [-] none 15 4147200 B 511.470542 511.674251 5.426 fps ts mono/SoE
15 (7) [-] none 16 4147200 B 511.672651 511.874337 4.948 fps ts mono/SoE
16 (0) [-] none 17 4147200 B 511.873988 512.074462 4.967 fps ts mono/SoE
17 (1) [-] none 18 4147200 B 512.075982 512.278296 4.951 fps ts mono/SoE
18 (2) [-] none 19 4147200 B 512.282631 512.482423 4.839 fps ts mono/SoE
19 (3) [-] none 20 4147200 B 518.986637 512.686333 0.149 fps ts mono/SoE
20 (4) [-] none 21 4147200 B 518.342709 512.886386 -1.553 fps ts mono/SoE
21 (5) [-] none 22 4147200 B 517.909812 513.090360 -2.310 fps ts mono/SoE
22 (6) [-] none 23 4147200 B 517.590775 513.294454 -3.134 fps ts mono/SoE
23 (7) [-] none 24 4147200 B 513.298465 513.494335 -0.233 fps ts mono/SoE
24 (0) [-] none 25 4147200 B 513.510273 513.698375 4.721 fps ts mono/SoE
25 (1) [-] none 26 4147200 B 513.698904 513.902327 5.301 fps ts mono/SoE
26 (2) [-] none 27 4147200 B 513.895971 514.102348 5.074 fps ts mono/SoE
27 (3) [-] none 28 4147200 B 514.099091 514.306337 4.923 fps ts mono/SoE
28 (4) [-] none 29 4147200 B 514.310348 514.510567 4.734 fps ts mono/SoE
29 (5) [-] none 30 4147200 B 514.509295 514.710367 5.026 fps ts mono/SoE
30 (6) [-] none 31 4147200 B 521.532513 514.914398 0.142 fps ts mono/SoE
31 (7) [-] none 32 4147200 B 520.885277 515.118385 -1.545 fps ts mono/SoE
32 (0) [-] none 33 4147200 B 520.411140 515.318336 -2.109 fps ts mono/SoE
33 (1) [-] none 34 4147200 B 515.325425 515.522278 -0.197 fps ts mono/SoE
34 (2) [-] none 35 4147200 B 515.538276 515.726423 4.698 fps ts mono/SoE
35 (3) [-] none 36 4147200 B 515.720767 515.930373 5.480 fps ts mono/SoE

Cc: stable@vger.kernel.org
Fixes: 66847ef013 ("[media] uvcvideo: Add UVC timestamps support")
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://lore.kernel.org/r/20240610-hwtimestamp-followup-v1-2-f9eaed7be7f0@chromium.org
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-04 13:13:07 +02:00
Long Li
a1177ea83d filelock: Correct the filelock owner in fcntl_setlk/fcntl_setlk64
The locks_remove_posix() function in fcntl_setlk/fcntl_setlk64 is designed
to reliably remove locks when an fcntl/close race is detected. However, it
was passing in the wrong filelock owner, it looks like a mistake and
resulting in a failure to remove locks. More critically, if the lock
removal fails, it could lead to a uaf issue while traversing the locks.

This problem occurs only in the 4.19/5.4 stable version.

Fixes: a561145f3a ("filelock: Fix fcntl/close race recovery compat path")
Fixes: d30ff33040 ("filelock: Remove locks reliably when fcntl/close race is detected")
Cc: stable@vger.kernel.org
Signed-off-by: Long Li <leo.lilong@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-04 13:13:07 +02:00
Damien Le Moal
868e60c28c scsi: mpt3sas: Avoid IOMMU page faults on REPORT ZONES
commit 82dbb57ac8d06dfe8227ba9ab11a49de2b475ae5 upstream.

Some firmware versions of the 9600 series SAS HBA byte-swap the REPORT
ZONES command reply buffer from ATA-ZAC devices by directly accessing the
buffer in the host memory. This does not respect the default command DMA
direction and causes IOMMU page faults on architectures with an IOMMU
enforcing write-only mappings for DMA_FROM_DEVICE DMA driection (e.g. AMD
hosts).

scsi 18:0:0:0: Direct-Access-ZBC ATA      WDC  WSH722020AL W870 PQ: 0 ANSI: 6
scsi 18:0:0:0: SATA: handle(0x0027), sas_addr(0x300062b2083e7c40), phy(0), device_name(0x5000cca29dc35e11)
scsi 18:0:0:0: enclosure logical id (0x300062b208097c40), slot(0)
scsi 18:0:0:0: enclosure level(0x0000), connector name( C0.0)
scsi 18:0:0:0: atapi(n), ncq(y), asyn_notify(n), smart(y), fua(y), sw_preserve(y)
scsi 18:0:0:0: qdepth(32), tagged(1), scsi_level(7), cmd_que(1)
sd 18:0:0:0: Attached scsi generic sg2 type 20
sd 18:0:0:0: [sdc] Host-managed zoned block device
mpt3sas 0000:41:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0021 address=0xfff9b200 flags=0x0050]
mpt3sas 0000:41:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0021 address=0xfff9b300 flags=0x0050]
mpt3sas_cm0: mpt3sas_ctl_pre_reset_handler: Releasing the trace buffer due to adapter reset.
mpt3sas_cm0 fault info from func: mpt3sas_base_make_ioc_ready
mpt3sas_cm0: fault_state(0x2666)!
mpt3sas_cm0: sending diag reset !!
mpt3sas_cm0: diag reset: SUCCESS
sd 18:0:0:0: [sdc] REPORT ZONES start lba 0 failed
sd 18:0:0:0: [sdc] REPORT ZONES: Result: hostbyte=DID_RESET driverbyte=DRIVER_OK
sd 18:0:0:0: [sdc] 0 4096-byte logical blocks: (0 B/0 B)

Avoid such issue by always mapping the buffer of REPORT ZONES commands
using DMA_BIDIRECTIONAL (read+write IOMMU mapping). This is done by
introducing the helper function _base_scsi_dma_map() and using this helper
in _base_build_sg_scmd() and _base_build_sg_scmd_ieee() instead of calling
directly scsi_dma_map().

Fixes: 471ef9d4e4 ("mpt3sas: Build MPI SGL LIST on GEN2 HBAs and IEEE SGL LIST on GEN3 HBAs")
Cc: stable@vger.kernel.org
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Link: https://lore.kernel.org/r/20240719073913.179559-3-dlemoal@kernel.org
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-04 13:13:07 +02:00
Mikulas Patocka
ac7f3b1e42 dm suspend: return -ERESTARTSYS instead of -EINTR
commit 1e1fd567d32fcf7544c6e09e0e5bc6c650da6e23 upstream.

This commit changes device mapper, so that it returns -ERESTARTSYS
instead of -EINTR when it is interrupted by a signal (so that the ioctl
can be restarted).

The manpage signal(7) says that the ioctl function should be restarted if
the signal was handled with SA_RESTART.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-04 13:13:07 +02:00
Sascha Hauer
42a15750b7 wifi: mwifiex: duplicate static structs used in driver instances
commit 27ec3c57fcadb43c79ed05b2ea31bc18c72d798a upstream.

mwifiex_band_2ghz and mwifiex_band_5ghz are statically allocated, but
used and modified in driver instances. Duplicate them before using
them in driver instances so that different driver instances do not
influence each other.

This was observed on a board which has one PCIe and one SDIO mwifiex
adapter. It blew up in mwifiex_setup_ht_caps(). This was called with
the statically allocated struct which is modified in this function.

Cc: stable@vger.kernel.org
Fixes: d6bffe8bb5 ("mwifiex: support for creation of AP interface")
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Acked-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://patch.msgid.link/20240809-mwifiex-duplicate-static-structs-v1-1-6837b903b1a4@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-04 13:13:07 +02:00
Ma Ke
0a2bab5ed1 pinctrl: single: fix potential NULL dereference in pcs_get_function()
commit 1c38a62f15e595346a1106025722869e87ffe044 upstream.

pinmux_generic_get_function() can return NULL and the pointer 'function'
was dereferenced without checking against NULL. Add checking of pointer
'function' in pcs_get_function().

Found by code review.

Cc: stable@vger.kernel.org
Fixes: 571aec4df5 ("pinctrl: single: Use generic pinmux helpers for managing functions")
Signed-off-by: Ma Ke <make24@iscas.ac.cn>
Link: https://lore.kernel.org/20240808041355.2766009-1-make24@iscas.ac.cn
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-04 13:13:07 +02:00
Jesse Zhang
d35cf41c8e drm/amdgpu: Using uninitialized value *size when calling amdgpu_vce_cs_reloc
commit 88a9a467c548d0b3c7761b4fd54a68e70f9c0944 upstream.

Initialize the size before calling amdgpu_vce_cs_reloc, such as case 0x03000001.
V2: To really improve the handling we would actually
   need to have a separate value of 0xffffffff.(Christian)

Signed-off-by: Jesse Zhang <jesse.zhang@amd.com>
Suggested-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Vamsi Krishna Brahmajosyula <vamsi-krishna.brahmajosyula@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-04 13:13:06 +02:00
Alexander Lobakin
bef72d1acb tools: move alignment-related macros to new <linux/align.h>
commit 10a04ff09bcc39e0044190ffe9f00f998f13647c upstream.

Currently, tools have *ALIGN*() macros scattered across the unrelated
headers, as there are only 3 of them and they were added separately
each time on an as-needed basis.
Anyway, let's make it more consistent with the kernel headers and allow
using those macros outside of the mentioned headers. Create
<linux/align.h> inside the tools/ folder and include it where needed.

Signed-off-by: Yury Norov <yury.norov@gmail.com>
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-04 13:13:06 +02:00
Tetsuo Handa
2829c80614 Input: MT - limit max slots
commit 99d3bf5f7377d42f8be60a6b9cb60fb0be34dceb upstream.

syzbot is reporting too large allocation at input_mt_init_slots(), for
num_slots is supplied from userspace using ioctl(UI_DEV_CREATE).

Since nobody knows possible max slots, this patch chose 1024.

Reported-by: syzbot <syzbot+0122fa359a69694395d5@syzkaller.appspotmail.com>
Closes: https://syzkaller.appspot.com/bug?extid=0122fa359a69694395d5
Suggested-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: George Kennedy <george.kennedy@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-04 13:13:06 +02:00
Lee, Chun-Yi
aea24ef5e9 Bluetooth: hci_ldisc: check HCI_UART_PROTO_READY flag in HCIUARTGETPROTO
commit 9c33663af9ad115f90c076a1828129a3fbadea98 upstream.

This patch adds code to check HCI_UART_PROTO_READY flag before
accessing hci_uart->proto. It fixes the race condition in
hci_uart_tty_ioctl() between HCIUARTSETPROTO and HCIUARTGETPROTO.
This issue bug found by Yu Hao and Weiteng Chen:

BUG: general protection fault in hci_uart_tty_ioctl [1]

The information of C reproducer can also reference the link [2]

Reported-by: Yu Hao <yhao016@ucr.edu>
Closes: https://lore.kernel.org/all/CA+UBctC3p49aTgzbVgkSZ2+TQcqq4fPDO7yZitFT5uBPDeCO2g@mail.gmail.com/ [1]
Reported-by: Weiteng Chen <wchen130@ucr.edu>
Closes: https://lore.kernel.org/lkml/CA+UBctDPEvHdkHMwD340=n02rh+jNRJNNQ5LBZNA+Wm4Keh2ow@mail.gmail.com/T/ [2]
Signed-off-by: "Lee, Chun-Yi" <jlee@suse.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-04 13:13:06 +02:00
Takashi Iwai
bfe0ba9515 ALSA: timer: Relax start tick time check for slave timer elements
commit ccbfcac05866ebe6eb3bc6d07b51d4ed4fcde436 upstream.

The recent addition of a sanity check for a too low start tick time
seems breaking some applications that uses aloop with a certain slave
timer setup.  They may have the initial resolution 0, hence it's
treated as if it were a too low value.

Relax and skip the check for the slave timer instance for addressing
the regression.

Fixes: 4a63bd179fa8 ("ALSA: timer: Set lower bound of start tick time")
Cc: <stable@vger.kernel.org>
Link: https://github.com/raspberrypi/linux/issues/6294
Link: https://patch.msgid.link/20240810084833.10939-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-04 13:13:06 +02:00
Ben Whitten
714ac96c0d mmc: dw_mmc: allow biu and ciu clocks to defer
commit 6275c7bc8dd07644ea8142a1773d826800f0f3f7 upstream.

Fix a race condition if the clock provider comes up after mmc is probed,
this causes mmc to fail without retrying.
When given the DEFER error from the clk source, pass it on up the chain.

Fixes: f90a0612f0 ("mmc: dw_mmc: lookup for optional biu and ciu clocks")
Signed-off-by: Ben Whitten <ben.whitten@gmail.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240811212212.123255-1-ben.whitten@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-04 13:13:06 +02:00
Nikolay Kuratov
4ffb49d818 cxgb4: add forgotten u64 ivlan cast before shift
commit 80a1e7b83bb1834b5568a3872e64c05795d88f31 upstream.

It is done everywhere in cxgb4 code, e.g. in is_filter_exact_match()
There is no reason it should not be done here

Found by Linux Verification Center (linuxtesting.org) with SVACE

Signed-off-by: Nikolay Kuratov <kniv@yandex-team.ru>
Cc: stable@vger.kernel.org
Fixes: 12b276fbf6 ("cxgb4: add support to create hash filters")
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20240819075408.92378-1-kniv@yandex-team.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-04 13:13:06 +02:00
Jason Gerecke
10ddadfab0 HID: wacom: Defer calculation of resolution until resolution_code is known
commit 1b8f9c1fb464968a5b18d3acc1da8c00bad24fad upstream.

The Wacom driver maps the HID_DG_TWIST usage to ABS_Z (rather than ABS_RZ)
for historic reasons. When the code to support twist was introduced in
commit 50066a042d ("HID: wacom: generic: Add support for height, tilt,
and twist usages"), we were careful to write it in such a way that it had
HID calculate the resolution of the twist axis assuming ABS_RZ instead
(so that we would get correct angular behavior). This was broken with
the introduction of commit 08a46b4190d3 ("HID: wacom: Set a default
resolution for older tablets"), which moved the resolution calculation
to occur *before* the adjustment from ABS_Z to ABS_RZ occurred.

This commit moves the calculation of resolution after the point that
we are finished setting things up for its proper use.

Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Fixes: 08a46b4190d3 ("HID: wacom: Set a default resolution for older tablets")
Cc: stable@vger.kernel.org
Signed-off-by: Jiri Kosina <jkosina@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-04 13:13:06 +02:00
Griffin Kroah-Hartman
11b4b0e63f Bluetooth: MGMT: Add error handling to pair_device()
commit 538fd3921afac97158d4177139a0ad39f056dbb2 upstream.

hci_conn_params_add() never checks for a NULL value and could lead to a NULL
pointer dereference causing a crash.

Fixed by adding error handling in the function.

Cc: Stable <stable@kernel.org>
Fixes: 5157b8a503 ("Bluetooth: Fix initializing conn_params in scan phase")
Signed-off-by: Griffin Kroah-Hartman <griffin@kroah.com>
Reported-by: Yiwei Zhang <zhan4630@purdue.edu>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-04 13:13:06 +02:00
Dan Carpenter
e97be13a9f mmc: mmc_test: Fix NULL dereference on allocation failure
[ Upstream commit a1e627af32ed60713941cbfc8075d44cad07f6dd ]

If the "test->highmem = alloc_pages()" allocation fails then calling
__free_pages(test->highmem) will result in a NULL dereference.  Also
change the error code to -ENOMEM instead of returning success.

Fixes: 2661081f5a ("mmc_test: highmem tests")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/8c90be28-67b4-4b0d-a105-034dc72a0b31@stanley.mountain
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-04 13:13:05 +02:00
Dmitry Baryshkov
a996a9abce drm/msm/dpu: don't play tricks with debug macros
[ Upstream commit df24373435f5899a2a98b7d377479c8d4376613b ]

DPU debugging macros need to be converted to a proper drm_debug_*
macros, however this is a going an intrusive patch, not suitable for a
fix. Wire DPU_DEBUG and DPU_DEBUG_DRIVER to always use DRM_DEBUG_DRIVER
to make sure that DPU debugging messages always end up in the drm debug
messages and are controlled via the usual drm.debug mask.

I don't think that it is a good idea for a generic DPU_DEBUG macro to be
tied to DRM_UT_KMS. It is used to report a debug message from driver, so by
default it should go to the DRM_UT_DRIVER channel. While refactoring
debug macros later on we might end up with particular messages going to
ATOMIC or KMS, but DRIVER should be the default.

Fixes: 25fdd5933e ("drm/msm: Add SDM845 DPU support")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/606932/
Link: https://lore.kernel.org/r/20240802-dpu-fix-wb-v2-2-7eac9eb8e895@linaro.org
Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-04 13:13:05 +02:00
Jani Nikula
2eb83c10a7 drm/msm: use drm_debug_enabled() to check for debug categories
[ Upstream commit d8db0b36d888b6a5eb392f112dc156e694de2369 ]

Allow better abstraction of the drm_debug global variable in the
future. No functional changes.

v2: Move unlikely() to drm_debug_enabled()

Cc: Rob Clark <robdclark@gmail.com>
Cc: Sean Paul <sean@poorly.run>
Cc: linux-arm-msm@vger.kernel.org
Cc: freedreno@lists.freedesktop.org
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/c7142cdebb5f6fed527272b333cd6c43c0aa68ec.1569329774.git.jani.nikula@intel.com
Stable-dep-of: df24373435f5 ("drm/msm/dpu: don't play tricks with debug macros")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-04 13:13:05 +02:00
Sean Anderson
e15ae5f903 net: xilinx: axienet: Always disable promiscuous mode
[ Upstream commit 4ae738dfef2c0323752ab81786e2d298c9939321 ]

If promiscuous mode is disabled when there are fewer than four multicast
addresses, then it will not be reflected in the hardware. Fix this by
always clearing the promiscuous mode flag even when we program multicast
addresses.

Fixes: 8a3b7a252d ("drivers/net/ethernet/xilinx: added Xilinx AXI Ethernet driver")
Signed-off-by: Sean Anderson <sean.anderson@linux.dev>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20240822154059.1066595-2-sean.anderson@linux.dev
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-04 13:13:05 +02:00
Eric Dumazet
571567e027 ipv6: prevent UAF in ip6_send_skb()
[ Upstream commit faa389b2fbaaec7fd27a390b4896139f9da662e3 ]

syzbot reported an UAF in ip6_send_skb() [1]

After ip6_local_out() has returned, we no longer can safely
dereference rt, unless we hold rcu_read_lock().

A similar issue has been fixed in commit
a688caa34b ("ipv6: take rcu lock in rawv6_send_hdrinc()")

Another potential issue in ip6_finish_output2() is handled in a
separate patch.

[1]
 BUG: KASAN: slab-use-after-free in ip6_send_skb+0x18d/0x230 net/ipv6/ip6_output.c:1964
Read of size 8 at addr ffff88806dde4858 by task syz.1.380/6530

CPU: 1 UID: 0 PID: 6530 Comm: syz.1.380 Not tainted 6.11.0-rc3-syzkaller-00306-gdf6cbc62cc9b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
 <TASK>
  __dump_stack lib/dump_stack.c:93 [inline]
  dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119
  print_address_description mm/kasan/report.c:377 [inline]
  print_report+0x169/0x550 mm/kasan/report.c:488
  kasan_report+0x143/0x180 mm/kasan/report.c:601
  ip6_send_skb+0x18d/0x230 net/ipv6/ip6_output.c:1964
  rawv6_push_pending_frames+0x75c/0x9e0 net/ipv6/raw.c:588
  rawv6_sendmsg+0x19c7/0x23c0 net/ipv6/raw.c:926
  sock_sendmsg_nosec net/socket.c:730 [inline]
  __sock_sendmsg+0x1a6/0x270 net/socket.c:745
  sock_write_iter+0x2dd/0x400 net/socket.c:1160
 do_iter_readv_writev+0x60a/0x890
  vfs_writev+0x37c/0xbb0 fs/read_write.c:971
  do_writev+0x1b1/0x350 fs/read_write.c:1018
  do_syscall_x64 arch/x86/entry/common.c:52 [inline]
  do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f936bf79e79
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f936cd7f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 00007f936c115f80 RCX: 00007f936bf79e79
RDX: 0000000000000001 RSI: 0000000020000040 RDI: 0000000000000004
RBP: 00007f936bfe7916 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f936c115f80 R15: 00007fff2860a7a8
 </TASK>

Allocated by task 6530:
  kasan_save_stack mm/kasan/common.c:47 [inline]
  kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
  unpoison_slab_object mm/kasan/common.c:312 [inline]
  __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338
  kasan_slab_alloc include/linux/kasan.h:201 [inline]
  slab_post_alloc_hook mm/slub.c:3988 [inline]
  slab_alloc_node mm/slub.c:4037 [inline]
  kmem_cache_alloc_noprof+0x135/0x2a0 mm/slub.c:4044
  dst_alloc+0x12b/0x190 net/core/dst.c:89
  ip6_blackhole_route+0x59/0x340 net/ipv6/route.c:2670
  make_blackhole net/xfrm/xfrm_policy.c:3120 [inline]
  xfrm_lookup_route+0xd1/0x1c0 net/xfrm/xfrm_policy.c:3313
  ip6_dst_lookup_flow+0x13e/0x180 net/ipv6/ip6_output.c:1257
  rawv6_sendmsg+0x1283/0x23c0 net/ipv6/raw.c:898
  sock_sendmsg_nosec net/socket.c:730 [inline]
  __sock_sendmsg+0x1a6/0x270 net/socket.c:745
  ____sys_sendmsg+0x525/0x7d0 net/socket.c:2597
  ___sys_sendmsg net/socket.c:2651 [inline]
  __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2680
  do_syscall_x64 arch/x86/entry/common.c:52 [inline]
  do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 45:
  kasan_save_stack mm/kasan/common.c:47 [inline]
  kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
  kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579
  poison_slab_object+0xe0/0x150 mm/kasan/common.c:240
  __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256
  kasan_slab_free include/linux/kasan.h:184 [inline]
  slab_free_hook mm/slub.c:2252 [inline]
  slab_free mm/slub.c:4473 [inline]
  kmem_cache_free+0x145/0x350 mm/slub.c:4548
  dst_destroy+0x2ac/0x460 net/core/dst.c:124
  rcu_do_batch kernel/rcu/tree.c:2569 [inline]
  rcu_core+0xafd/0x1830 kernel/rcu/tree.c:2843
  handle_softirqs+0x2c4/0x970 kernel/softirq.c:554
  __do_softirq kernel/softirq.c:588 [inline]
  invoke_softirq kernel/softirq.c:428 [inline]
  __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
  irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
  instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
  sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043
  asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702

Last potentially related work creation:
  kasan_save_stack+0x3f/0x60 mm/kasan/common.c:47
  __kasan_record_aux_stack+0xac/0xc0 mm/kasan/generic.c:541
  __call_rcu_common kernel/rcu/tree.c:3106 [inline]
  call_rcu+0x167/0xa70 kernel/rcu/tree.c:3210
  refdst_drop include/net/dst.h:263 [inline]
  skb_dst_drop include/net/dst.h:275 [inline]
  nf_ct_frag6_queue net/ipv6/netfilter/nf_conntrack_reasm.c:306 [inline]
  nf_ct_frag6_gather+0xb9a/0x2080 net/ipv6/netfilter/nf_conntrack_reasm.c:485
  ipv6_defrag+0x2c8/0x3c0 net/ipv6/netfilter/nf_defrag_ipv6_hooks.c:67
  nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
  nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626
  nf_hook include/linux/netfilter.h:269 [inline]
  __ip6_local_out+0x6fa/0x800 net/ipv6/output_core.c:143
  ip6_local_out+0x26/0x70 net/ipv6/output_core.c:153
  ip6_send_skb+0x112/0x230 net/ipv6/ip6_output.c:1959
  rawv6_push_pending_frames+0x75c/0x9e0 net/ipv6/raw.c:588
  rawv6_sendmsg+0x19c7/0x23c0 net/ipv6/raw.c:926
  sock_sendmsg_nosec net/socket.c:730 [inline]
  __sock_sendmsg+0x1a6/0x270 net/socket.c:745
  sock_write_iter+0x2dd/0x400 net/socket.c:1160
 do_iter_readv_writev+0x60a/0x890

Fixes: 0625491493 ("ipv6: ip6_push_pending_frames() should increment IPSTATS_MIB_OUTDISCARDS")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20240820160859.3786976-2-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-04 13:13:05 +02:00
Sebastian Andrzej Siewior
31c28919a9 netfilter: nft_counter: Synchronize nft_counter_reset() against reader.
[ Upstream commit a0b39e2dc7017ac667b70bdeee5293e410fab2fb ]

nft_counter_reset() resets the counter by subtracting the previously
retrieved value from the counter. This is a write operation on the
counter and as such it requires to be performed with a write sequence of
nft_counter_seq to serialize against its possible reader.

Update the packets/ bytes within write-sequence of nft_counter_seq.

Fixes: d84701ecbc ("netfilter: nft_counter: rework atomic dump and reset")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-04 13:13:05 +02:00
Kuniyuki Iwashima
8c9cdbf600 kcm: Serialise kcm_sendmsg() for the same socket.
[ Upstream commit 807067bf014d4a3ae2cc55bd3de16f22a01eb580 ]

syzkaller reported UAF in kcm_release(). [0]

The scenario is

  1. Thread A builds a skb with MSG_MORE and sets kcm->seq_skb.

  2. Thread A resumes building skb from kcm->seq_skb but is blocked
     by sk_stream_wait_memory()

  3. Thread B calls sendmsg() concurrently, finishes building kcm->seq_skb
     and puts the skb to the write queue

  4. Thread A faces an error and finally frees skb that is already in the
     write queue

  5. kcm_release() does double-free the skb in the write queue

When a thread is building a MSG_MORE skb, another thread must not touch it.

Let's add a per-sk mutex and serialise kcm_sendmsg().

[0]:
BUG: KASAN: slab-use-after-free in __skb_unlink include/linux/skbuff.h:2366 [inline]
BUG: KASAN: slab-use-after-free in __skb_dequeue include/linux/skbuff.h:2385 [inline]
BUG: KASAN: slab-use-after-free in __skb_queue_purge_reason include/linux/skbuff.h:3175 [inline]
BUG: KASAN: slab-use-after-free in __skb_queue_purge include/linux/skbuff.h:3181 [inline]
BUG: KASAN: slab-use-after-free in kcm_release+0x170/0x4c8 net/kcm/kcmsock.c:1691
Read of size 8 at addr ffff0000ced0fc80 by task syz-executor329/6167

CPU: 1 PID: 6167 Comm: syz-executor329 Tainted: G    B              6.8.0-rc5-syzkaller-g9abbc24128bc #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Call trace:
 dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:291
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:298
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:377 [inline]
 print_report+0x178/0x518 mm/kasan/report.c:488
 kasan_report+0xd8/0x138 mm/kasan/report.c:601
 __asan_report_load8_noabort+0x20/0x2c mm/kasan/report_generic.c:381
 __skb_unlink include/linux/skbuff.h:2366 [inline]
 __skb_dequeue include/linux/skbuff.h:2385 [inline]
 __skb_queue_purge_reason include/linux/skbuff.h:3175 [inline]
 __skb_queue_purge include/linux/skbuff.h:3181 [inline]
 kcm_release+0x170/0x4c8 net/kcm/kcmsock.c:1691
 __sock_release net/socket.c:659 [inline]
 sock_close+0xa4/0x1e8 net/socket.c:1421
 __fput+0x30c/0x738 fs/file_table.c:376
 ____fput+0x20/0x30 fs/file_table.c:404
 task_work_run+0x230/0x2e0 kernel/task_work.c:180
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0x618/0x1f64 kernel/exit.c:871
 do_group_exit+0x194/0x22c kernel/exit.c:1020
 get_signal+0x1500/0x15ec kernel/signal.c:2893
 do_signal+0x23c/0x3b44 arch/arm64/kernel/signal.c:1249
 do_notify_resume+0x74/0x1f4 arch/arm64/kernel/entry-common.c:148
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline]
 el0_svc+0xac/0x168 arch/arm64/kernel/entry-common.c:713
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598

Allocated by task 6166:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x40/0x78 mm/kasan/common.c:68
 kasan_save_alloc_info+0x70/0x84 mm/kasan/generic.c:626
 unpoison_slab_object mm/kasan/common.c:314 [inline]
 __kasan_slab_alloc+0x74/0x8c mm/kasan/common.c:340
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slub.c:3813 [inline]
 slab_alloc_node mm/slub.c:3860 [inline]
 kmem_cache_alloc_node+0x204/0x4c0 mm/slub.c:3903
 __alloc_skb+0x19c/0x3d8 net/core/skbuff.c:641
 alloc_skb include/linux/skbuff.h:1296 [inline]
 kcm_sendmsg+0x1d3c/0x2124 net/kcm/kcmsock.c:783
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 sock_sendmsg+0x220/0x2c0 net/socket.c:768
 splice_to_socket+0x7cc/0xd58 fs/splice.c:889
 do_splice_from fs/splice.c:941 [inline]
 direct_splice_actor+0xec/0x1d8 fs/splice.c:1164
 splice_direct_to_actor+0x438/0xa0c fs/splice.c:1108
 do_splice_direct_actor fs/splice.c:1207 [inline]
 do_splice_direct+0x1e4/0x304 fs/splice.c:1233
 do_sendfile+0x460/0xb3c fs/read_write.c:1295
 __do_sys_sendfile64 fs/read_write.c:1362 [inline]
 __se_sys_sendfile64 fs/read_write.c:1348 [inline]
 __arm64_sys_sendfile64+0x160/0x3b4 fs/read_write.c:1348
 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598

Freed by task 6167:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x40/0x78 mm/kasan/common.c:68
 kasan_save_free_info+0x5c/0x74 mm/kasan/generic.c:640
 poison_slab_object+0x124/0x18c mm/kasan/common.c:241
 __kasan_slab_free+0x3c/0x78 mm/kasan/common.c:257
 kasan_slab_free include/linux/kasan.h:184 [inline]
 slab_free_hook mm/slub.c:2121 [inline]
 slab_free mm/slub.c:4299 [inline]
 kmem_cache_free+0x15c/0x3d4 mm/slub.c:4363
 kfree_skbmem+0x10c/0x19c
 __kfree_skb net/core/skbuff.c:1109 [inline]
 kfree_skb_reason+0x240/0x6f4 net/core/skbuff.c:1144
 kfree_skb include/linux/skbuff.h:1244 [inline]
 kcm_release+0x104/0x4c8 net/kcm/kcmsock.c:1685
 __sock_release net/socket.c:659 [inline]
 sock_close+0xa4/0x1e8 net/socket.c:1421
 __fput+0x30c/0x738 fs/file_table.c:376
 ____fput+0x20/0x30 fs/file_table.c:404
 task_work_run+0x230/0x2e0 kernel/task_work.c:180
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0x618/0x1f64 kernel/exit.c:871
 do_group_exit+0x194/0x22c kernel/exit.c:1020
 get_signal+0x1500/0x15ec kernel/signal.c:2893
 do_signal+0x23c/0x3b44 arch/arm64/kernel/signal.c:1249
 do_notify_resume+0x74/0x1f4 arch/arm64/kernel/entry-common.c:148
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline]
 el0_svc+0xac/0x168 arch/arm64/kernel/entry-common.c:713
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598

The buggy address belongs to the object at ffff0000ced0fc80
 which belongs to the cache skbuff_head_cache of size 240
The buggy address is located 0 bytes inside of
 freed 240-byte region [ffff0000ced0fc80, ffff0000ced0fd70)

The buggy address belongs to the physical page:
page:00000000d35f4ae4 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10ed0f
flags: 0x5ffc00000000800(slab|node=0|zone=2|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 05ffc00000000800 ffff0000c1cbf640 fffffdffc3423100 dead000000000004
raw: 0000000000000000 00000000000c000c 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000ced0fb80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff0000ced0fc00: fb fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc
>ffff0000ced0fc80: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                   ^
 ffff0000ced0fd00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc
 ffff0000ced0fd80: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb

Fixes: ab7ac4eb98 ("kcm: Kernel Connection Multiplexor module")
Reported-by: syzbot+b72d86aa5df17ce74c60@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=b72d86aa5df17ce74c60
Tested-by: syzbot+b72d86aa5df17ce74c60@syzkaller.appspotmail.com
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20240815220437.69511-1-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-04 13:13:05 +02:00
Luiz Augusto von Dentz
08829a8ff1 Bluetooth: hci_core: Fix LE quote calculation
[ Upstream commit 932021a11805b9da4bd6abf66fe233cccd59fe0e ]

Function hci_sched_le needs to update the respective counter variable
inplace other the likes of hci_quote_sent would attempt to use the
possible outdated value of conn->{le_cnt,acl_cnt}.

Link: https://github.com/bluez/bluez/issues/915
Fixes: 73d80deb7b ("Bluetooth: prioritizing data over HCI")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-04 13:13:05 +02:00
Luiz Augusto von Dentz
edb7dbcf8c Bluetooth: hci_core: Fix not handling link timeouts propertly
[ Upstream commit 116523c8fac05d1d26f748fee7919a4ec5df67ea ]

Change that introduced the use of __check_timeout did not account for
link types properly, it always assumes ACL_LINK is used thus causing
hdev->acl_last_tx to be used even in case of LE_LINK and then again
uses ACL_LINK with hci_link_tx_to.

To fix this __check_timeout now takes the link type as parameter and
then procedure to use the right last_tx based on the link type and pass
it to hci_link_tx_to.

Fixes: 1b1d29e51499 ("Bluetooth: Make use of __check_timeout on hci_sched_le")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Tested-by: David Beinder <david@beinder.at>
Stable-dep-of: 932021a11805 ("Bluetooth: hci_core: Fix LE quote calculation")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-04 13:13:04 +02:00
Luiz Augusto von Dentz
67cddb2a1b Bluetooth: Make use of __check_timeout on hci_sched_le
[ Upstream commit 1b1d29e5149990e44634b2e681de71effd463591 ]

This reuse __check_timeout on hci_sched_le following the same logic
used hci_sched_acl.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Stable-dep-of: 932021a11805 ("Bluetooth: hci_core: Fix LE quote calculation")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-04 13:13:04 +02:00
Tetsuo Handa
ee12aa483f block: use "unsigned long" for blk_validate_block_size().
commit 37ae5a0f5287a52cf51242e76ccf198d02ffe495 upstream.

Since lo_simple_ioctl(LOOP_SET_BLOCK_SIZE) and ioctl(NBD_SET_BLKSIZE) pass
user-controlled "unsigned long arg" to blk_validate_block_size(),
"unsigned long" should be used for validation.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/9ecbf057-4375-c2db-ab53-e4cc0dff953d@i-love.sakura.ne.jp
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: David Hunter <david.hunter.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-04 13:13:04 +02:00
Eric Dumazet
3d89d0c4a1 gtp: pull network headers in gtp_dev_xmit()
commit 3a3be7ff9224f424e485287b54be00d2c6bd9c40 upstream.

syzbot/KMSAN reported use of uninit-value in get_dev_xmit() [1]

We must make sure the IPv4 or Ipv6 header is pulled in skb->head
before accessing fields in them.

Use pskb_inet_may_pull() to fix this issue.

[1]
BUG: KMSAN: uninit-value in ipv6_pdp_find drivers/net/gtp.c:220 [inline]
 BUG: KMSAN: uninit-value in gtp_build_skb_ip6 drivers/net/gtp.c:1229 [inline]
 BUG: KMSAN: uninit-value in gtp_dev_xmit+0x1424/0x2540 drivers/net/gtp.c:1281
  ipv6_pdp_find drivers/net/gtp.c:220 [inline]
  gtp_build_skb_ip6 drivers/net/gtp.c:1229 [inline]
  gtp_dev_xmit+0x1424/0x2540 drivers/net/gtp.c:1281
  __netdev_start_xmit include/linux/netdevice.h:4913 [inline]
  netdev_start_xmit include/linux/netdevice.h:4922 [inline]
  xmit_one net/core/dev.c:3580 [inline]
  dev_hard_start_xmit+0x247/0xa20 net/core/dev.c:3596
  __dev_queue_xmit+0x358c/0x5610 net/core/dev.c:4423
  dev_queue_xmit include/linux/netdevice.h:3105 [inline]
  packet_xmit+0x9c/0x6c0 net/packet/af_packet.c:276
  packet_snd net/packet/af_packet.c:3145 [inline]
  packet_sendmsg+0x90e3/0xa3a0 net/packet/af_packet.c:3177
  sock_sendmsg_nosec net/socket.c:730 [inline]
  __sock_sendmsg+0x30f/0x380 net/socket.c:745
  __sys_sendto+0x685/0x830 net/socket.c:2204
  __do_sys_sendto net/socket.c:2216 [inline]
  __se_sys_sendto net/socket.c:2212 [inline]
  __x64_sys_sendto+0x125/0x1d0 net/socket.c:2212
  x64_sys_call+0x3799/0x3c10 arch/x86/include/generated/asm/syscalls_64.h:45
  do_syscall_x64 arch/x86/entry/common.c:52 [inline]
  do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was created at:
  slab_post_alloc_hook mm/slub.c:3994 [inline]
  slab_alloc_node mm/slub.c:4037 [inline]
  kmem_cache_alloc_node_noprof+0x6bf/0xb80 mm/slub.c:4080
  kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:583
  __alloc_skb+0x363/0x7b0 net/core/skbuff.c:674
  alloc_skb include/linux/skbuff.h:1320 [inline]
  alloc_skb_with_frags+0xc8/0xbf0 net/core/skbuff.c:6526
  sock_alloc_send_pskb+0xa81/0xbf0 net/core/sock.c:2815
  packet_alloc_skb net/packet/af_packet.c:2994 [inline]
  packet_snd net/packet/af_packet.c:3088 [inline]
  packet_sendmsg+0x749c/0xa3a0 net/packet/af_packet.c:3177
  sock_sendmsg_nosec net/socket.c:730 [inline]
  __sock_sendmsg+0x30f/0x380 net/socket.c:745
  __sys_sendto+0x685/0x830 net/socket.c:2204
  __do_sys_sendto net/socket.c:2216 [inline]
  __se_sys_sendto net/socket.c:2212 [inline]
  __x64_sys_sendto+0x125/0x1d0 net/socket.c:2212
  x64_sys_call+0x3799/0x3c10 arch/x86/include/generated/asm/syscalls_64.h:45
  do_syscall_x64 arch/x86/entry/common.c:52 [inline]
  do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

CPU: 0 UID: 0 PID: 7115 Comm: syz.1.515 Not tainted 6.11.0-rc1-syzkaller-00043-g94ede2a3e913 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024

Fixes: 999cb275c807 ("gtp: add IPv6 support")
Fixes: 459aa660eb ("gtp: add initial driver for datapath of GPRS Tunneling Protocol (GTP-U)")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Harald Welte <laforge@gnumonks.org>
Reviewed-by: Pablo Neira Ayuso <pablo@netfilter.org>
Link: https://patch.msgid.link/20240808132455.3413916-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-04 13:13:04 +02:00
Phil Chang
ccef3adcb8 hrtimer: Prevent queuing of hrtimer without a function callback
[ Upstream commit 5a830bbce3af16833fe0092dec47b6dd30279825 ]

The hrtimer function callback must not be NULL. It has to be specified by
the call side but it is not validated by the hrtimer code. When a hrtimer
is queued without a function callback, the kernel crashes with a null
pointer dereference when trying to execute the callback in __run_hrtimer().

Introduce a validation before queuing the hrtimer in
hrtimer_start_range_ns().

[anna-maria: Rephrase commit message]

Signed-off-by: Phil Chang <phil.chang@mediatek.com>
Signed-off-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-04 13:13:04 +02:00
Sagi Grimberg
66fce1c83e nvmet-rdma: fix possible bad dereference when freeing rsps
[ Upstream commit 73964c1d07c054376f1b32a62548571795159148 ]

It is possible that the host connected and saw a cm established
event and started sending nvme capsules on the qp, however the
ctrl did not yet see an established event. This is why the
rsp_wait_list exists (for async handling of these cmds, we move
them to a pending list).

Furthermore, it is possible that the ctrl cm times out, resulting
in a connect-error cm event. in this case we hit a bad deref [1]
because in nvmet_rdma_free_rsps we assume that all the responses
are in the free list.

We are freeing the cmds array anyways, so don't even bother to
remove the rsp from the free_list. It is also guaranteed that we
are not racing anything when we are releasing the queue so no
other context accessing this array should be running.

[1]:
--
Workqueue: nvmet-free-wq nvmet_rdma_free_queue_work [nvmet_rdma]
[...]
pc : nvmet_rdma_free_rsps+0x78/0xb8 [nvmet_rdma]
lr : nvmet_rdma_free_queue_work+0x88/0x120 [nvmet_rdma]
 Call trace:
 nvmet_rdma_free_rsps+0x78/0xb8 [nvmet_rdma]
 nvmet_rdma_free_queue_work+0x88/0x120 [nvmet_rdma]
 process_one_work+0x1ec/0x4a0
 worker_thread+0x48/0x490
 kthread+0x158/0x160
 ret_from_fork+0x10/0x18
--

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-04 13:13:04 +02:00
Baokun Li
2f64ae3283 ext4: set the type of max_zeroout to unsigned int to avoid overflow
[ Upstream commit 261341a932d9244cbcd372a3659428c8723e5a49 ]

The max_zeroout is of type int and the s_extent_max_zeroout_kb is of
type uint, and the s_extent_max_zeroout_kb can be freely modified via
the sysfs interface. When the block size is 1024, max_zeroout may
overflow, so declare it as unsigned int to avoid overflow.

Signed-off-by: Baokun Li <libaokun1@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20240319113325.3110393-9-libaokun1@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-04 13:13:04 +02:00
Guanrui Huang
139510ec27 irqchip/gic-v3-its: Remove BUG_ON in its_vpe_irq_domain_alloc
[ Upstream commit 382d2ffe86efb1e2fa803d2cf17e5bfc34e574f3 ]

This BUG_ON() is useless, because the same effect will be obtained
by letting the code run its course and vm being dereferenced,
triggering an exception.

So just remove this check.

Signed-off-by: Guanrui Huang <guanrui.huang@linux.alibaba.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20240418061053.96803-3-guanrui.huang@linux.alibaba.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-04 13:13:04 +02:00
Krishna Kurapati
320bb9a5a6 usb: dwc3: core: Skip setting event buffers for host only controllers
[ Upstream commit 89d7f962994604a3e3d480832788d06179abefc5 ]

On some SoC's like SA8295P where the tertiary controller is host-only
capable, GEVTADDRHI/LO, GEVTSIZ, GEVTCOUNT registers are not accessible.
Trying to access them leads to a crash.

For DRD/Peripheral supported controllers, event buffer setup is done
again in gadget_pullup. Skip setup or cleanup of event buffers if
controller is host-only capable.

Suggested-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Krishna Kurapati <quic_kriskura@quicinc.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Tested-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20240420044901.884098-4-quic_kriskura@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-04 13:13:04 +02:00
Alexander Gordeev
da6cc71ff6 s390/iucv: fix receive buffer virtual vs physical address confusion
[ Upstream commit 4e8477aeb46dfe74e829c06ea588dd00ba20c8cc ]

Fix IUCV_IPBUFLST-type buffers virtual vs physical address confusion.
This does not fix a bug since virtual and physical address spaces are
currently the same.

Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: Alexandra Winter <wintera@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-04 13:13:03 +02:00
Oreoluwa Babatunde
3979298b80 openrisc: Call setup_memory() earlier in the init sequence
[ Upstream commit 7b432bf376c9c198a7ff48f1ed14a14c0ffbe1fe ]

The unflatten_and_copy_device_tree() function contains a call to
memblock_alloc(). This means that memblock is allocating memory before
any of the reserved memory regions are set aside in the setup_memory()
function which calls early_init_fdt_scan_reserved_mem(). Therefore,
there is a possibility for memblock to allocate from any of the
reserved memory regions.

Hence, move the call to setup_memory() to be earlier in the init
sequence so that the reserved memory regions are set aside before any
allocations are done using memblock.

Signed-off-by: Oreoluwa Babatunde <quic_obabatun@quicinc.com>
Signed-off-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-04 13:13:03 +02:00
NeilBrown
4980d45cca NFS: avoid infinite loop in pnfs_update_layout.
[ Upstream commit 2fdbc20036acda9e5694db74a032d3c605323005 ]

If pnfsd_update_layout() is called on a file for which recovery has
failed it will enter a tight infinite loop.

NFS_LAYOUT_INVALID_STID will be set, nfs4_select_rw_stateid() will
return -EIO, and nfs4_schedule_stateid_recovery() will do nothing, so
nfs4_client_recover_expired_lease() will not wait.  So the code will
loop indefinitely.

Break the loop by testing the validity of the open stateid at the top of
the loop.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-04 13:13:03 +02:00
Luiz Augusto von Dentz
01ed379cb5 Bluetooth: bnep: Fix out-of-bound access
[ Upstream commit 0f0639b4d6f649338ce29c62da3ec0787fa08cd1 ]

This fixes attempting to access past ethhdr.h_source, although it seems
intentional to copy also the contents of h_proto this triggers
out-of-bound access problems with the likes of static analyzer, so this
instead just copy ETH_ALEN and then proceed to use put_unaligned to copy
h_proto separetely.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-04 13:13:03 +02:00
Uwe Kleine-König
29d8f0e05a usb: gadget: fsl: Increase size of name buffer for endpoints
[ Upstream commit 87850f6cc20911e35eafcbc1d56b0d649ae9162d ]

This fixes a W=1 warning about sprintf writing up to 16 bytes into a
buffer of size 14. There is no practical relevance because there are not
more than 32 endpoints.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/6754df25c56aae04f8110594fad2cd2452b1862a.1708709120.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-04 13:13:03 +02:00
Zhiguo Niu
3c2c864f19 f2fs: fix to do sanity check in update_sit_entry
[ Upstream commit 36959d18c3cf09b3c12157c6950e18652067de77 ]

If GET_SEGNO return NULL_SEGNO for some unecpected case,
update_sit_entry will access invalid memory address,
cause system crash. It is better to do sanity check about
GET_SEGNO just like update_segment_mtime & locate_dirty_segment.

Also remove some redundant judgment code.

Signed-off-by: Zhiguo Niu <zhiguo.niu@unisoc.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-04 13:13:03 +02:00
David Sterba
5ae1493c5e btrfs: delete pointless BUG_ON check on quota root in btrfs_qgroup_account_extent()
[ Upstream commit f40a3ea94881f668084f68f6b9931486b1606db0 ]

The BUG_ON is deep in the qgroup code where we can expect that it
exists. A NULL pointer would cause a crash.

It was added long ago in 550d7a2ed5 ("btrfs: qgroup: Add new qgroup
calculation function btrfs_qgroup_account_extents()."). It maybe made
sense back then as the quota enable/disable state machine was not that
robust as it is nowadays, so we can just delete it.

Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-04 13:13:03 +02:00
David Sterba
f0b54836bf btrfs: send: handle unexpected data in header buffer in begin_cmd()
[ Upstream commit e80e3f732cf53c64b0d811e1581470d67f6c3228 ]

Change BUG_ON to a proper error handling in the unlikely case of seeing
data when the command is started. This is supposed to be reset when the
command is finished (send_cmd, send_encoded_extent).

Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-04 13:13:03 +02:00
David Sterba
ebce7d482d btrfs: handle invalid root reference found in may_destroy_subvol()
[ Upstream commit 6fbc6f4ac1f4907da4fc674251527e7dc79ffbf6 ]

The may_destroy_subvol() looks up a root by a key, allowing to do an
inexact search when key->offset is -1.  It's never expected to find such
item, as it would break the allowed range of a root id.

Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-04 13:13:03 +02:00
David Sterba
be9ce497c7 btrfs: change BUG_ON to assertion when checking for delayed_node root
[ Upstream commit be73f4448b607e6b7ce41cd8ef2214fdf6e7986f ]

The pointer to root is initialized in btrfs_init_delayed_node(), no need
to check for it again. Change the BUG_ON to assertion.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-04 13:13:02 +02:00
Michael Ellerman
1180feef20 powerpc/boot: Only free if realloc() succeeds
[ Upstream commit f2d5bccaca3e8c09c9b9c8485375f7bdbb2631d2 ]

simple_realloc() frees the original buffer (ptr) even if the
reallocation failed.

Fix it to behave like standard realloc() and only free the original
buffer if the reallocation succeeded.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240229115149.749264-1-mpe@ellerman.id.au
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-04 13:13:02 +02:00
Li zeming
cd146e3169 powerpc/boot: Handle allocation failure in simple_realloc()
[ Upstream commit 69b0194ccec033c208b071e019032c1919c2822d ]

simple_malloc() will return NULL when there is not enough memory left.
Check pointer 'new' before using it to copy the old data.

Signed-off-by: Li zeming <zeming@nfschina.com>
[mpe: Reword subject, use change log from Christophe]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20221219021816.3012-1-zeming@nfschina.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-04 13:13:02 +02:00
Helge Deller
fea29d479e parisc: Use irq_enter_rcu() to fix warning at kernel/context_tracking.c:367
[ Upstream commit 73cb4a2d8d7e0259f94046116727084f21e4599f ]

Use irq*_rcu() functions to fix this kernel warning:

 WARNING: CPU: 0 PID: 0 at kernel/context_tracking.c:367 ct_irq_enter+0xa0/0xd0
 Modules linked in:
 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.7.0-rc3-64bit+ #1037
 Hardware name: 9000/785/C3700

 IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000412cd758 00000000412cd75c
  IIR: 03ffe01f    ISR: 0000000000000000  IOR: 0000000043c20c20
  CPU:        0   CR30: 0000000041caa000 CR31: 0000000000000000
  ORIG_R28: 0000000000000005
  IAOQ[0]: ct_irq_enter+0xa0/0xd0
  IAOQ[1]: ct_irq_enter+0xa4/0xd0
  RP(r2): irq_enter+0x34/0x68
 Backtrace:
  [<000000004034a3ec>] irq_enter+0x34/0x68
  [<000000004030dc48>] do_cpu_irq_mask+0xc0/0x450
  [<0000000040303070>] intr_return+0x0/0xc

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-04 13:13:02 +02:00
Li Nan
5c11581df1 md: clean up invalid BUG_ON in md_ioctl
[ Upstream commit 9dd8702e7cd28ebf076ff838933f29cf671165ec ]

'disk->private_data' is set to mddev in md_alloc() and never set to NULL,
and users need to open mddev before submitting ioctl. So mddev must not
have been freed during ioctl, and there is no need to check mddev here.
Clean up it.

Signed-off-by: Li Nan <linan122@huawei.com>
Reviewed-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/r/20240226031444.3606764-4-linan666@huaweicloud.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-04 13:13:02 +02:00
Kees Cook
7783533f78 net/sun3_82586: Avoid reading past buffer in debug output
[ Upstream commit 4bea747f3fbec33c16d369b2f51e55981d7c78d0 ]

Since NUM_XMIT_BUFFS is always 1, building m68k with sun3_defconfig and
-Warraybounds, this build warning is visible[1]:

drivers/net/ethernet/i825xx/sun3_82586.c: In function 'sun3_82586_timeout':
drivers/net/ethernet/i825xx/sun3_82586.c:990:122: warning: array subscript 1 is above array bounds of 'volatile struct transmit_cmd_struct *[1]' [-Warray-bounds=]
  990 |                 printk("%s: command-stats: %04x %04x\n",dev->name,swab16(p->xmit_cmds[0]->cmd_status),swab16(p->xmit_cmds[1]->cmd_status));
      |                                                                                                               ~~~~~~~~~~~~^~~
...
drivers/net/ethernet/i825xx/sun3_82586.c:156:46: note: while referencing 'xmit_cmds'
  156 |         volatile struct transmit_cmd_struct *xmit_cmds[NUM_XMIT_BUFFS];

Avoid accessing index 1 since it doesn't exist.

Link: https://github.com/KSPP/linux/issues/325 [1]
Cc: Sam Creasey <sammy@sammy.net>
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Simon Horman <horms@kernel.org> # build-tested
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20240206161651.work.876-kees@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-04 13:13:02 +02:00