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  4. CVE 2024 57893 alsa seq oss fix races at processing sysex
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Back to active CVEs
High · CVSS 7.8CVE-2024-57893

ALSA: seq: oss: Fix races at processing SysEx messagesCVE-2024-57893

Answer in brief

CVE-2024-57893 records a High severity (CVSS 7.8) vulnerability in ALSA: seq: oss: Fix races at processing SysEx messages. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jan 15, 2025Updated Aug 5, 2026Source checked Nov 3, 2026First seen by HOL Aug 5, 2026Material review Aug 5, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 7.8
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <cff1de87ed14fc0f2332213d2367100e7ad0753a || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d2392b79d8af3714ea8878b71c66dc49d3110f44 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9d382112b36382aa65aad765f189ebde9926c101 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <0179488ca992d79908b8e26b9213f1554fc5bacccff1de87ed14fc0f2332213d2367100e7ad0753a, d2392b79d8af3714ea8878b71c66dc49d3110f44, 9d382112b36382aa65aad765f189ebde9926c101, 0179488ca992d79908b8e26b9213f1554fc5bacc
Linux/Linuxgeneric2.6.12Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
  2. 2Review the reported fix. Update Linux/Linux to cff1de87ed14fc0f2332213d2367100e7ad0753a if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Jan 15, 2025

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Aug 5, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Aug 5, 2026

Sources and claim methodology

  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencelists.debian.org
Upstream source description

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: oss: Fix races at processing SysEx messages OSS sequencer handles the SysEx messages split in 6 bytes packets, and ALSA sequencer OSS layer tries to combine those. It stores the data in the internal buffer and this access is racy as of now, which may lead to the out-of-bounds access. As a temporary band-aid fix, introduce a mutex for serializing the process of the SysEx message packets.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Nov 3, 2026
References
5 linked sources
Open source record