CVE-2021-47211
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…
Does this matter?
Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.24% probability · 15th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/3455984b16eeb6914caf8b59498ef24fcc1f0a78
- https://git.kernel.org/stable/c/58fa50de595f152900594c28ec9915c169643739Patch
- https://git.kernel.org/stable/c/b97053df0f04747c3c1e021ecbe99db675342954Patch
- https://git.kernel.org/stable/c/58fa50de595f152900594c28ec9915c169643739Patch
- https://git.kernel.org/stable/c/b97053df0f04747c3c1e021ecbe99db675342954Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.