CVE-2022-49288 (GCVE-0-2022-49288)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:56 – Updated: 2026-05-11 18:56
VLAI
Title
ALSA: pcm: Fix races among concurrent prealloc proc writes
Summary
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).
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-27 17:58 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < e7786c445bb67a9a6e64f66ebd6b7215b153ff7d (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < e14dca613e0a6ddc2bf6e360f16936a9f865205b (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 37b12c16beb6f6c1c3c678c1aacbc46525c250f7 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < b560d670c87d7d40b3cf6949246fa4c7aa65a00a (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 51fce708ab8986a9879ee5da946a2cc120f1036d (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < a21d2f323b5a978dedf9ff1d50f101f85e39b3f2 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 5ed8f8e3c4e59d0396b9ccf2e639711e24295bb6 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 69534c48ba8ce552ce383b3dfdb271ffe51820c3 (git)
Create a notification for this product.
Linux Linux Affected: 2.6.12
Unaffected: 0 , < 2.6.12 (semver)
Unaffected: 4.14.279 , ≤ 4.14.* (semver)
Unaffected: 4.19.243 , ≤ 4.19.* (semver)
Unaffected: 5.4.193 , ≤ 5.4.* (semver)
Unaffected: 5.10.109 , ≤ 5.10.* (semver)
Unaffected: 5.15.32 , ≤ 5.15.* (semver)
Unaffected: 5.16.18 , ≤ 5.16.* (semver)
Unaffected: 5.17.1 , ≤ 5.17.* (semver)
Unaffected: 5.18 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
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      "version": "3"
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.