CVE-2026-80972

Summary

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

ALSA: aloop: Check card index validity at probe

aloop 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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux597603d615d2b19a9e451d8cfac24372856a522d < c589aeaadfde1cfedb5c6f0a3c782807282126d9affected
LinuxLinux597603d615d2b19a9e451d8cfac24372856a522d < 7b3f9855849363e402bf2141df2b428581cbf31baffected
LinuxLinux597603d615d2b19a9e451d8cfac24372856a522d < efbc2e9e43a1b5c6d75ae47439c06896bb142ae6affected
LinuxLinux597603d615d2b19a9e451d8cfac24372856a522d < 819b106a9fd2ef3fd8abf898b9a8e4524eca8f48affected
LinuxLinux2.6.37affected
LinuxLinux0 < 2.6.37unaffected
LinuxLinux6.12.109 <= 6.12.*unaffected
LinuxLinux6.18.50 <= 6.18.*unaffected
LinuxLinux7.2.4 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References