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| author | Clemens Ladisch <clemens@ladisch.de> | 2010-10-15 12:06:18 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2010-10-17 10:11:40 +0200 |
| commit | aa73aec6c385e2c797ac25cc7ccf0318031de7c8 (patch) | |
| tree | 97ab3c6e917c2592f2c432c703a058ac0cebc574 /drivers/acpi/sysfs.c | |
| parent | cd07202cc8262e1669edff0d97715f3dd9260917 (diff) | |
| download | linux-aa73aec6c385e2c797ac25cc7ccf0318031de7c8.tar.gz linux-aa73aec6c385e2c797ac25cc7ccf0318031de7c8.tar.bz2 linux-aa73aec6c385e2c797ac25cc7ccf0318031de7c8.zip | |
ALSA: rawmidi: fix oops (use after free) when unloading a driver module
When a driver module is unloaded and the last still open file is a raw
MIDI device, the card and its devices will be actually freed in the
snd_card_file_remove() call when that file is closed. Afterwards, rmidi
and rmidi->card point into freed memory, so the module pointer is likely
to be garbage.
(This was introduced by commit 9a1b64caac82aa02cb74587ffc798e6f42c6170a.)
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Reported-by: Krzysztof Foltman <wdev@foltman.com>
Cc: 2.6.30-2.6.35 <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'drivers/acpi/sysfs.c')
0 files changed, 0 insertions, 0 deletions