ALSA: pcxhr: initialize mutexes before requesting threaded IRQ
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.4epss 0.2%
exploitation probability
0.2%top 92% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
ALSA: pcxhr: initialize mutexes before requesting threaded IRQ
pcxhr_probe() requests pcxhr_threaded_irq() before initializing
mgr->lock, even though the threaded handler takes that mutex.
Initialize the manager locks before request_threaded_irq() so an
early interrupt cannot run against uninitialized mutex state during
probe.
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/039602d6ddb1febbb0561b30dab04461f78a1319https://git.kernel.org/stable/c/6c97817e20598e5473094e0e38d1f51f1cf4dfffhttps://git.kernel.org/stable/c/7cf280fbef5db6310e1b32074c8c34d1ba459796https://git.kernel.org/stable/c/7ef9ad82d95dd3c74570d80a689a0570fbc7539ehttps://git.kernel.org/stable/c/a5f405adb0229c9cf64eb3d695c333c92e3d3d4fhttps://git.kernel.org/stable/c/c069b3cfd753d6688ea0271c43553631ab38ce10https://git.kernel.org/stable/c/ede25b7fea0d7487ee8528bf35dc7b9a1cbcd814