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

Vulnerability from cvelistv5 – Published: 2025-02-26 01:56 – Updated: 2025-12-23 13:23
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
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)
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    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)
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  • 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.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • 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.



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