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| author | Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com> | 2012-09-24 04:49:12 +0200 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2012-09-24 04:49:12 +0200 |
| commit | 50df9fd55e4271e89a7adf3b1172083dd0ca199d (patch) | |
| tree | f2b72f080a0963ee553385c9e2f2d77a5276e1f4 /sound/ac97_bus.c | |
| parent | ext4: remove erroneous ext4_superblock_csum_set() in update_backups() (diff) | |
| download | linux-50df9fd55e4271e89a7adf3b1172083dd0ca199d.tar.xz linux-50df9fd55e4271e89a7adf3b1172083dd0ca199d.zip | |
ext4: fix crash when accessing /proc/mounts concurrently
The crash was caused by a variable being erronously declared static in
token2str().
In addition to /proc/mounts, the problem can also be easily replicated
by accessing /proc/fs/ext4/<partition>/options in parallel:
$ cat /proc/fs/ext4/<partition>/options > options.txt
... and then running the following command in two different terminals:
$ while diff /proc/fs/ext4/<partition>/options options.txt; do true; done
This is also the cause of the following a crash while running xfstests
#234, as reported in the following bug reports:
https://bugs.launchpad.net/bugs/1053019
https://bugzilla.kernel.org/show_bug.cgi?id=47731
Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Brad Figg <brad.figg@canonical.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'sound/ac97_bus.c')
0 files changed, 0 insertions, 0 deletions