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
LinuxLinux757e119bf52b014b3181eed97b01f87a245b8ff9 < 45ea0707298798678a60ff861b695aea049a5469affected
LinuxLinux757e119bf52b014b3181eed97b01f87a245b8ff9 < 5d7ac5e9ee5ba76b567ace13b46075caf79dcca0affected
LinuxLinux757e119bf52b014b3181eed97b01f87a245b8ff9 < 0048994854f3e9c57b7a754de43ef8da5818d140affected
LinuxLinux757e119bf52b014b3181eed97b01f87a245b8ff9 < 64898e9bd8b7b229efa8642b85b56b326a6ec3dcaffected
LinuxLinux757e119bf52b014b3181eed97b01f87a245b8ff9 < 0ce391090809d610647f424b9b1dc24aa2c546fdaffected
LinuxLinux757e119bf52b014b3181eed97b01f87a245b8ff9 < d7ef7890e3e35b4ba09e76fc6b72047a1599a5e8affected
LinuxLinux757e119bf52b014b3181eed97b01f87a245b8ff9 < e1ce8ad1009b1736b3044b3324350dcfdd516f42affected
LinuxLinux757e119bf52b014b3181eed97b01f87a245b8ff9 < 3690ef20469d5959378260e2752f2314a2572913affected
LinuxLinux2.6.21affected
LinuxLinux0 < 2.6.21unaffected
LinuxLinux5.10.270 <= 5.10.*unaffected
LinuxLinux5.15.221 <= 5.15.*unaffected
LinuxLinux6.1.188 <= 6.1.*unaffected
LinuxLinux6.6.157 <= 6.6.*unaffected
LinuxLinux6.12.109 <= 6.12.*unaffected
LinuxLinux6.18.50 <= 6.18.*unaffected
LinuxLinux7.2.4 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References