CVE-2026-31619 (GCVE-0-2026-31619)

Vulnerability from cvelistv5 – Published: 2026-04-24 14:42 – Updated: 2026-04-24 14:42
VLAI?
Title
ALSA: fireworks: bound device-supplied status before string array lookup
Summary
In the Linux kernel, the following vulnerability has been resolved: ALSA: fireworks: bound device-supplied status before string array lookup The status field in an EFW response is a 32-bit value supplied by the firewire device. efr_status_names[] has 17 entries so a status value outside that range goes off into the weeds when looking at the %s value. Even worse, the status could return EFR_STATUS_INCOMPLETE which is 0x80000000, and is obviously not in that array of potential strings. Fix this up by properly bounding the index against the array size and printing "unknown" if it's not recognized.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < e103f98f6615ed2934e9cf340654f0cad9eb8a8a (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 67cfd14074cdafab5de3f7cfc0952c1a9b653e5d (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < cc624b3d2be13297100539b64ad950695188e046 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 682d8accf0d83a871e8c327b95c81f53902c922b (git)
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    Linux Linux Unaffected: 6.12.83 , ≤ 6.12.* (semver)
Unaffected: 6.18.24 , ≤ 6.18.* (semver)
Unaffected: 6.19.14 , ≤ 6.19.* (semver)
Unaffected: 7.0.1 , ≤ 7.0.* (semver)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: fireworks: bound device-supplied status before string array lookup\n\nThe status field in an EFW response is a 32-bit value supplied by the\nfirewire device.  efr_status_names[] has 17 entries so a status value\noutside that range goes off into the weeds when looking at the %s value.\n\nEven worse, the status could return EFR_STATUS_INCOMPLETE which is\n0x80000000, and is obviously not in that array of potential strings.\n\nFix this up by properly bounding the index against the array size and\nprinting \"unknown\" if it\u0027s not recognized."
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    "dateReserved": "2026-03-09T15:48:24.123Z",
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  • 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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