| Name | CVE-2021-47211 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| linux (PTS) | jessie, jessie (lts) | 3.16.84-1 | vulnerable |
| stretch (security) | 4.9.320-2 | vulnerable | |
| stretch (lts), stretch | 4.9.320-3 | vulnerable | |
| buster (security), buster, buster (lts) | 4.19.316-1 | vulnerable | |
| bullseye | 5.10.223-1 | vulnerable | |
| bullseye (security) | 5.10.226-1 | vulnerable | |
| bookworm | 6.1.106-3 | fixed | |
| bookworm (security) | 6.1.112-1 | fixed | |
| sid, trixie | 6.11.5-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| linux | source | jessie | (unfixed) | end-of-life | ||
| linux | source | stretch | (unfixed) | end-of-life | ||
| linux | source | buster | (unfixed) | end-of-life | ||
| linux | source | (unstable) | 5.15.5-1 |
https://git.kernel.org/linus/b97053df0f04747c3c1e021ecbe99db675342954 (5.16-rc1)