]> git.baikalelectronics.ru Git - kernel.git/commit
ALSA: pcm: fix divide error in snd_pcm_lib_ioctl
authorZubin Mithra <zsm@chromium.org>
Fri, 27 Aug 2021 15:37:35 +0000 (08:37 -0700)
committerTakashi Iwai <tiwai@suse.de>
Fri, 27 Aug 2021 20:34:12 +0000 (22:34 +0200)
commit9cdd0ce536337b22984a39b432df27233f333afa
tree4f5c56b7075f46985196fd7aaf046aca6e7260f2
parent474388571038d8304a87acbe982888c1752930f3
ALSA: pcm: fix divide error in snd_pcm_lib_ioctl

Syzkaller reported a divide error in snd_pcm_lib_ioctl. fifo_size
is of type snd_pcm_uframes_t(unsigned long). If frame_size
is 0x100000000, the error occurs.

Fixes: 2dab084081e6 ("ALSA: pcm: fix fifo_size frame calculation")
Signed-off-by: Zubin Mithra <zsm@chromium.org>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210827153735.789452-1-zsm@chromium.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/core/pcm_lib.c