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| author | Takashi Iwai <tiwai@suse.de> | 2021-06-08 16:04:37 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-07-20 16:05:42 +0200 |
| commit | 0e54f8ee6bff85def622bfa29f74569fb824536a (patch) | |
| tree | 94d4e32acb12e293d71301761245f90d2df63f8e /arch/powerpc | |
| parent | 52d242f2bffef61e6c3bbc7ebbf41c4bf7b010d0 (diff) | |
ALSA: sb: Fix potential double-free of CSP mixer elements
[ Upstream commit c305366a37441c2ac90b08711cb6f032b43672f2 ]
snd_sb_qsound_destroy() contains the calls of removing the previously
created mixer controls, but it doesn't clear the pointers. As
snd_sb_qsound_destroy() itself may be repeatedly called via ioctl,
this could lead to double-free potentially.
Fix it by clearing the struct fields properly afterwards.
Link: https://lore.kernel.org/r/20210608140540.17885-4-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/powerpc')
0 files changed, 0 insertions, 0 deletions