CVE-2026-46157
Description
AI Translation Available
In the Linux kernel, the following vulnerability has been resolved:
ALSA: pcm: oss: Fix data race at accessing runtime.oss.trigger
Currently the runtime.oss.trigger field may be accessed concurrently
without protection, which may lead to the data race. And, in this
case, it may lead to more severe problem because it's a bit field; as
writing the data, it may overwrite other bit fields as well, which
confuses the operation completely, as spotted by fuzzing.
Fix it by covering runtime.oss.trigger bit fled also with the existing
params_lock mutex in both snd_pcm_oss_get_trigger() and
snd_pcm_oss_poll().
https://git.kernel.org/stable/c/49f9d048845be874df7997e4b1ce662de450c4b6
https://git.kernel.org/stable/c/6b01c1bc9a4748ab37548a700a8aaff910e298e6
https://git.kernel.org/stable/c/901ac0ff15edf9503162e2cf6579bd11a30f1ed4
https://git.kernel.org/stable/c/ac3e9b55b7da6f0be51720bd330a0edc1a8b61f1