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| author | Changming Liu <liu.changm@northeastern.edu> | 2020-05-26 00:39:21 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-06-03 08:18:01 +0200 |
| commit | f0e47703123ed02d5186740232f4495e7a67216c (patch) | |
| tree | b82e3ec3fd9aa1e45b641951e502b6199c50a580 /security | |
| parent | b229bff80f064990e57469545d17769defcf3c6e (diff) | |
ALSA: hwdep: fix a left shifting 1 by 31 UB bug
[ Upstream commit fb8cd6481ffd126f35e9e146a0dcf0c4e8899f2e ]
The "info.index" variable can be 31 in "1 << info.index".
This might trigger an undefined behavior since 1 is signed.
Fix this by casting 1 to 1u just to be sure "1u << 31" is defined.
Signed-off-by: Changming Liu <liu.changm@northeastern.edu>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/BL0PR06MB4548170B842CB055C9AF695DE5B00@BL0PR06MB4548.namprd06.prod.outlook.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'security')
0 files changed, 0 insertions, 0 deletions