CVE-2021-47211

Summary

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: fix null pointer dereference on pointer cs_desc The pointer cs_desc return from snd_usb_find_clock_source could be null, so there is a potential null pointer dereference issue. Fix this by adding a null check before dereference.

Impact & exploitability

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products we track (1)

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Official patch: https://git.kernel.org/stable/c/58fa50de595f152900594c28ec9915c169643739 ↗

Additional information

• NVD record
• https://git.kernel.org/stable/c/58fa50de595f152900594c28ec9915c169643739Patch
• https://git.kernel.org/stable/c/b97053df0f04747c3c1e021ecbe99db675342954Patch
• https://git.kernel.org/stable/c/3455984b16eeb6914caf8b59498ef24fcc1f0a78