CVE-2022-49288ALSA: pcm: Fix races among concurrent prealloc proc writes
- 7.8HighCVSS base score
- 0.28%Exploitation in 30 daysEPSS · top 79% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Fix races among concurrent prealloc proc writes We have no protection against concurrent PCM buffer preallocation changes via proc files, and it may potentially lead to UAF or some weird problem. This patch applies the PCM open_mutex to the proc write operation for avoiding the racy proc writes and the PCM stream open (and further operations).
Timeline
ID reserved
By Linux
Published
- 15 months later
· 15 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Analyzed | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.28% · top 79% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < e7786c445bb67a9a6e64f66ebd6b7215b153ff7d
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < e14dca613e0a6ddc2bf6e360f16936a9f865205b
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 37b12c16beb6f6c1c3c678c1aacbc46525c250f7
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < b560d670c87d7d40b3cf6949246fa4c7aa65a00a
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 51fce708ab8986a9879ee5da946a2cc120f1036d
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < a21d2f323b5a978dedf9ff1d50f101f85e39b3f2
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 5ed8f8e3c4e59d0396b9ccf2e639711e24295bb6
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 69534c48ba8ce552ce383b3dfdb271ffe51820c3
- affected 2.6.12
- unaffected < 2.6.12
- unaffected 4.14.279 – ≤ 4.14.*
- unaffected 4.19.243 – ≤ 4.19.*
- unaffected 5.4.193 – ≤ 5.4.*
- unaffected 5.10.109 – ≤ 5.10.*
- unaffected 5.15.32 – ≤ 5.15.*
- unaffected 5.16.18 – ≤ 5.16.*
- unaffected 5.17.1 – ≤ 5.17.*
- unaffected 5.18 – ≤ *
References
References8
- https://git.kernel.org/stable/c/e7786c445bb67a9a6e64f66ebd6b7215b153ff7d (opens in a new tab)
- https://git.kernel.org/stable/c/e14dca613e0a6ddc2bf6e360f16936a9f865205b (opens in a new tab)
- https://git.kernel.org/stable/c/37b12c16beb6f6c1c3c678c1aacbc46525c250f7 (opens in a new tab)
- https://git.kernel.org/stable/c/b560d670c87d7d40b3cf6949246fa4c7aa65a00a (opens in a new tab)
- https://git.kernel.org/stable/c/51fce708ab8986a9879ee5da946a2cc120f1036d (opens in a new tab)
- https://git.kernel.org/stable/c/a21d2f323b5a978dedf9ff1d50f101f85e39b3f2 (opens in a new tab)
- https://git.kernel.org/stable/c/5ed8f8e3c4e59d0396b9ccf2e639711e24295bb6 (opens in a new tab)
- https://git.kernel.org/stable/c/69534c48ba8ce552ce383b3dfdb271ffe51820c3 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2022-54938 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2022-49288)Record last updated .