Bob Peterson 6790f8b937 gfs2: check for empty rgrp tree in gfs2_ri_update ...

commit 778721510e84209f78e31e2ccb296ae36d623f5e upstream.

If gfs2 tries to mount a (corrupt) file system that has no resource
groups it still tries to set preferences on the first one, which causes
a kernel null pointer dereference. This patch adds a check to function
gfs2_ri_update so this condition is detected and reported back as an
error.

Reported-by: syzbot+e3f23ce40269a4c9053a@syzkaller.appspotmail.com
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2020-12-11 13:25:04 +01:00

..

acl.c

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acl.h

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aops.c

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aops.h

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bmap.c

gfs2: Another gfs2_walk_metadata fix

2020-05-20 08:18:41 +02:00

bmap.h

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dentry.c

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dir.c

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dir.h

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export.c

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file.c

gfs2: fix O_SYNC write handling

2020-02-11 04:34:07 -08:00

gfs2.h

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glock.c

gfs2: Wake up when sd_glock_disposal becomes zero

2020-11-10 12:35:58 +01:00

glock.h

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glops.c

gfs2: initialize transaction tr_ailX_lists earlier

2020-09-23 12:10:56 +02:00

glops.h

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incore.h

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inode.c

gfs2: clean up iopen glock mess in gfs2_create_inode

2020-10-01 13:14:28 +02:00

inode.h

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Kconfig

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lock_dlm.c

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log.c

gfs2: initialize transaction tr_ailX_lists earlier

2020-09-23 12:10:56 +02:00

log.h

gfs2: fix glock reference problem in gfs2_trans_remove_revoke

2019-12-17 20:35:55 +01:00

lops.c

gfs2: fix glock reference problem in gfs2_trans_remove_revoke

2019-12-17 20:35:55 +01:00

lops.h

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main.c

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Makefile

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meta_io.c

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meta_io.h

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ops_fstype.c

gfs2: add validation checks for size of superblock

2020-11-05 11:08:44 +01:00

quota.c

gfs2: move privileged user check to gfs2_quota_lock_check

2020-06-03 08:19:28 +02:00

quota.h

gfs2: move privileged user check to gfs2_quota_lock_check

2020-06-03 08:19:28 +02:00

recovery.c

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recovery.h

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rgrp.c

gfs2: check for empty rgrp tree in gfs2_ri_update

2020-12-11 13:25:04 +01:00

rgrp.h

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super.c

gfs2: Add missing truncate_inode_pages_final for sd_aspace

2020-11-18 19:18:44 +01:00

super.h

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sys.c

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sys.h

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trace_gfs2.h

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trans.c

gfs2: initialize transaction tr_ailX_lists earlier

2020-09-23 12:10:56 +02:00

trans.h

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util.c

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util.h

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xattr.c

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xattr.h

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