CVE-2026-99100

wifi: p54: validate firmware record lengths

State: Published
Severity: Not scored
Published: Oct 28, 2026
Updated: Oct 30, 2026
Reserved: Sep 25, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

wifi: p54: validate firmware record lengths

The p54 firmware parser accesses component ID and component version records without checking that their lengths cover the fields being read. A malformed record can therefore make the parser read past the record.

Validate the component ID and component version record lengths before accessing their data. The descriptor record is also checked against the shortest descriptor length found in the supported firmware images.

Reject descriptor values that underflow the RX offset or produce an empty RX range before updating the driver state.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 87a9aba92485889d510052e474999a6ec00b888cAffected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before d5c28994b2c1440480fccd0b6c2ce72c23bb9fffAffected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 9af312d3607c8f9b5166a19cbf40cee351cc3a1dAffected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before dda5245afc3470d70406764e3d9f5508e534920aAffected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before f4c6fcc2ad462ffd76d6e6f909bcd6ae0391f5b7Affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before f641066b0ddcd1b0cf007c0d04f9c966f6e888aeAffected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 8c4f962f368d5e17481f3c2c5a43028953e137a5Affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before db7b86bd97b380ece8fa39cfdd7502a9fd35e56fAffected before 5.10.273Affected before 5.15.224Affected before 6.1.191Affected before 6.6.161Affected before 6.12.115Affected before 6.18.59Affected before 7.2.13Affected
LinuxLinux	5.10.273 through 5.10.Not affected 5.15.224 through 5.15.Not affected 6.1.191 through 6.1.Not affected 6.6.161 through 6.6.Not affected 6.12.115 through 6.12.Not affected 6.18.59 through 6.18.Not affected 7.2.13 through 7.2.*Not affected 7.3 and laterNot affected

Product

Versions

LinuxLinux

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 87a9aba92485889d510052e474999a6ec00b888cAffected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before d5c28994b2c1440480fccd0b6c2ce72c23bb9fffAffected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 9af312d3607c8f9b5166a19cbf40cee351cc3a1dAffected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before dda5245afc3470d70406764e3d9f5508e534920aAffected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before f4c6fcc2ad462ffd76d6e6f909bcd6ae0391f5b7Affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before f641066b0ddcd1b0cf007c0d04f9c966f6e888aeAffected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 8c4f962f368d5e17481f3c2c5a43028953e137a5Affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before db7b86bd97b380ece8fa39cfdd7502a9fd35e56fAffected
before 5.10.273Affected
before 5.15.224Affected
before 6.1.191Affected
before 6.6.161Affected
before 6.12.115Affected
before 6.18.59Affected
before 7.2.13Affected

LinuxLinux

5.10.273 through 5.10.*Not affected
5.15.224 through 5.15.*Not affected
6.1.191 through 6.1.*Not affected
6.6.161 through 6.6.*Not affected
6.12.115 through 6.12.*Not affected
6.18.59 through 6.18.*Not affected
7.2.13 through 7.2.*Not affected
7.3 and laterNot affected

References

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