Riskcovery

CVE-2026-80965

ALSA: serial-u16550: Check card index validity at probe

State
Published
Severity
Not scored
Published
Sep 11, 2026
Updated
Oct 19, 2026
Reserved
Aug 26, 2026

Read the record on cve.org

Description

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

ALSA: serial-u16550: Check card index validity at probe

serial-u16550 driver blindly trusts that the given devptr->id value is within the proper card index range at probe. It's OK for the devices the driver itself creates at the module probe time, but if the device is bound manually via sysfs interface, this could be -1 as "none", and this leads to OOB access for index[] and other parameters.

Add a sanity check for the card index and warn/correct it if it's a value out of the range.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 9caf6b5908e1e3b10478e9201ca1be809145253f to before 41a952304cc8a308748e3f58462c879f2a9c4340Affected
  • 9caf6b5908e1e3b10478e9201ca1be809145253f to before cc0f757d017f4271f137c77e130314bb23792347Affected
  • 9caf6b5908e1e3b10478e9201ca1be809145253f to before 1cb30691dc893aafcbc1e211e94764014c0f5d12Affected
  • 9caf6b5908e1e3b10478e9201ca1be809145253f to before 487ede9b648fc0eb15866f408c41aac2c57f85d5Affected
  • 9caf6b5908e1e3b10478e9201ca1be809145253f to before fbf3fb097e66fc1874e54ecc46d600d9325480d6Affected
  • 9caf6b5908e1e3b10478e9201ca1be809145253f to before 7555e83d7738e65dc83921e3c85bbdc081f08f2fAffected
  • 9caf6b5908e1e3b10478e9201ca1be809145253f to before 6d6fdb24fe2eaf6174fc502284c6e1dc5f7242baAffected
  • 9caf6b5908e1e3b10478e9201ca1be809145253f to before e0fb960b227fcdebe22e4f26c9486d60943c0424Affected
LinuxLinux
  • 2.6.16Affected
  • before 2.6.16Not affected
  • 5.10.270 through 5.10.*Not affected
  • 5.15.221 through 5.15.*Not affected
  • 6.1.188 through 6.1.*Not affected
  • 6.6.157 through 6.6.*Not affected
  • 6.12.109 through 6.12.*Not affected
  • 6.18.50 through 6.18.*Not affected
  • 7.2.4 through 7.2.*Not affected
  • 7.3 and laterNot affected

References

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