CVE-2026-80966

Summary

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

ALSA: portman2x4: Check card index validity at probe

Although portman2x4 driver has a check of the given devptr->id value, it doesn't check for a negative id, which is often given as "none" or such value when bound via sysfs. This may lead 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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 0ce391090809d610647f424b9b1dc24aa2c546fdaffected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < d7ef7890e3e35b4ba09e76fc6b72047a1599a5e8affected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < e1ce8ad1009b1736b3044b3324350dcfdd516f42affected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 3690ef20469d5959378260e2752f2314a2572913affected
LinuxLinux0 < 6.12.109affected
LinuxLinux0 < 6.18.50affected
LinuxLinux0 < 7.2.4affected
LinuxLinux6.12.109 <= 6.12.*unaffected
LinuxLinux6.18.50 <= 6.18.*unaffected
LinuxLinux7.2.4 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References