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Tao Chen b5ac877855 bpf: Check percpu map value size first

[ Upstream commit 1d244784be6b01162b732a5a7d637dfc024c3203 ]

Percpu map is often used, but the map value size limit often ignored,
like issue: https://github.com/iovisor/bcc/issues/2519. Actually,
percpu map value size is bound by PCPU_MIN_UNIT_SIZE, so we
can check the value size whether it exceeds PCPU_MIN_UNIT_SIZE first,
like percpu map of local_storage. Maybe the error message seems clearer
compared with "cannot allocate memory".

Signed-off-by: Jinke Han <jinkehan@didiglobal.com>
Signed-off-by: Tao Chen <chen.dylane@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20240910144111.1464912-2-chen.dylane@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

2024-11-08 16:19:16 +01:00

..

bpf: Check percpu map value size first

2024-11-08 16:19:16 +01:00

cgroup: Protect css->cgroup write under css_set_lock

2024-09-12 11:02:53 +02:00

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kdb: Use the passed prompt in kdb_position_cursor()

2024-08-19 05:32:06 +02:00

dma: fix call order in dmam_free_coherent

2024-08-19 05:32:06 +02:00

uprobes: fix kernel info leak via "[uprobes]" vma

2024-11-08 16:19:15 +01:00

gcov: add support for GCC 14

2024-07-05 09:00:29 +02:00

genirq/cpuhotplug, x86/vector: Prevent vector leak during CPU offline

2024-06-16 13:23:38 +02:00

livepatch: fix race between fork and KLP transition

2022-10-26 13:19:23 +02:00

rtmutex: Drop rt_mutex::wait_lock before scheduling

2024-09-12 11:02:55 +02:00

PM: suspend: Set mem_sleep_current during kernel command line setup

2024-04-13 12:50:04 +02:00

printk: Update @console_may_schedule in console_trylock_spinning()

2024-04-13 12:50:09 +02:00

rcutorture: Fix rcu_torture_one_read() pipe_count overflow comment

2024-07-05 09:00:26 +02:00

sched/fair: Allow disabling sched_balance_newidle with sched_relax_domain_level

2024-06-16 13:23:32 +02:00

hrtimer: Prevent queuing of hrtimer without a function callback

2024-09-04 13:13:04 +02:00

tracing: Remove precision vsnprintf() check from print event

2024-11-08 16:19:16 +01:00

.gitignore

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acct.c

acct: fix potential integer overflow in encode_comp_t()

2023-01-18 11:30:34 +01:00

async.c

treewide: Remove uninitialized_var() usage

2023-08-11 11:45:01 +02:00

audit_fsnotify.c

audit: fix potential double free on error path from fsnotify_add_inode_mark

2022-09-05 10:26:28 +02:00

audit_tree.c

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audit_watch.c

audit: don't WARN_ON_ONCE(!current->mm) in audit_exe_compare()

2023-11-28 16:46:34 +00:00

audit.c

audit: Send netlink ACK before setting connection in auditd_set

2024-02-23 08:12:44 +01:00

audit.h

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auditfilter.c

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auditsc.c

audit: fix possible soft lockup in __audit_inode_child()

2023-09-23 10:48:04 +02:00

backtracetest.c

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bounds.c

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capability.c

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compat.c

sched_getaffinity: don't assume 'cpumask_size()' is fully initialized

2023-04-05 11:15:39 +02:00

configs.c

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context_tracking.c

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cpu_pm.c

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cpu.c

hrtimers: Push pending hrtimers away from outgoing CPU earlier

2023-12-13 17:42:15 +01:00

crash_core.c

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crash_dump.c

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cred.c

cred: switch to using atomic_long_t

2023-12-20 15:38:01 +01:00

delayacct.c

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dma.c

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exec_domain.c

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exit.c

mm: optimize the redundant loop of mm_update_owner_next()

2024-07-18 11:39:35 +02:00

extable.c

kernel/extable.c: use address-of operator on section symbols

2023-06-09 10:24:02 +02:00

fail_function.c

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fork.c

mm/hugetlb: initialize hugetlb_usage in mm_init

2021-09-22 11:48:09 +02:00

freezer.c

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futex.c

treewide: Remove uninitialized_var() usage

2023-08-11 11:45:01 +02:00

groups.c

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hung_task.c

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iomem.c

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irq_work.c

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jump_label.c

locking/static_key: Fix false positive warnings on concurrent dec/inc

2021-03-04 09:39:30 +01:00

kallsyms.c

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kcmp.c

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Kconfig.freezer

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Kconfig.hz

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Kconfig.locks

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Kconfig.preempt

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kcov.c

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kexec_core.c

kexec: fix a memory leak in crash_shrink_memory()

2023-08-11 11:45:06 +02:00

kexec_file.c

kexec: support purgatories with .text.hot sections

2023-06-21 15:39:57 +02:00

kexec_internal.h

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kexec.c

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kmod.c

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kprobes.c

kprobes: Fix possible use-after-free issue on kprobe registration

2024-05-02 16:17:09 +02:00

ksysfs.c

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kthread.c

kthread: fix task state in kthread worker if being frozen

2024-11-08 16:19:06 +01:00

latencytop.c

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Makefile

elfcore: fix building with clang

2021-02-10 09:21:06 +01:00

memremap.c

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module_signing.c

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module-internal.h

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module.c

modules: only allow symbol_get of EXPORT_SYMBOL_GPL modules

2023-09-23 10:47:56 +02:00

notifier.c

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nsproxy.c

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padata.c

crypto: pcrypt - Fix hungtask for PADATA_RESET

2023-11-28 16:46:31 +00:00

panic.c

exit: Use READ_ONCE() for all oops/warn limit reads

2023-02-06 07:49:46 +01:00

params.c

params: lift param_set_uint_minmax to common code

2024-06-16 13:23:35 +02:00

pid_namespace.c

memcg: enable accounting for pids in nested pid namespaces

2021-09-22 11:48:09 +02:00

pid.c

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profile.c

profiling: fix shift too large makes kernel panic

2022-08-25 11:15:20 +02:00

ptrace.c

ptrace: Reimplement PTRACE_KILL by always sending SIGKILL

2022-06-14 16:59:14 +02:00

range.c

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reboot.c

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relay.c

relayfs: fix out-of-bounds access in relay_file_read

2023-05-17 11:13:23 +02:00

resource.c

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rseq.c

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seccomp.c

seccomp: Invalidate seccomp mode to catch death failures

2022-02-16 12:51:47 +01:00

signal.c

signal: Replace BUG_ON()s

2024-11-08 16:19:12 +01:00

smp.c

smp: Add missing destroy_work_on_stack() call in smp_call_on_cpu()

2024-09-12 11:02:53 +02:00

smpboot.c

kthread: Extract KTHREAD_IS_PER_CPU

2021-02-07 14:48:38 +01:00

smpboot.h

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softirq.c

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stacktrace.c

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stop_machine.c

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sys_ni.c

kernel/sys_ni: add compat entry for fadvise64_64

2022-09-05 10:26:28 +02:00

sys.c

Revert "y2038: rusage: use __kernel_old_timeval"

2024-05-02 16:17:14 +02:00

sysctl_binary.c

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sysctl.c

sched/rt: Disallow writing invalid values to sched_rt_period_us

2024-03-01 13:06:08 +01:00

task_work.c

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taskstats.c

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test_kprobes.c

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torture.c

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tracepoint.c

tracepoint: Add tracepoint_probe_register_may_exist() for BPF tracing

2021-07-20 16:15:42 +02:00

tsacct.c

taskstats: Cleanup the use of task->exit_code

2022-02-23 11:58:39 +01:00

ucount.c

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uid16.c

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uid16.h

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umh.c

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up.c

smp: Fix smp_call_function_single_async prototype

2021-05-22 10:59:39 +02:00

user_namespace.c

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user-return-notifier.c

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user.c

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utsname_sysctl.c

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utsname.c

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watchdog_hld.c

watchdog/perf: properly initialize the turbo mode timestamp and rearm counter

2024-08-19 05:32:05 +02:00

watchdog.c

watchdog: export lockup_detector_reconfigure

2022-08-25 11:15:46 +02:00

workqueue_internal.h

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workqueue.c

workqueue: Override implicit ordered attribute in workqueue_apply_unbound_cpumask()

2023-10-25 11:16:26 +02:00