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CVE-2026-80972

ALSA: aloop: Check card index validity at probe PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
Linux / Linuxaffected 597603d615d2b19a9e451d8cfac24372856a522d before 6da6ffb34a5d54e7e6efebb253899c6a3501a611; affected 597603d615d2b19a9e451d8cfac24372856a522d before e35d11102ef0945feaa1dba4e511685911695ab9; affected 597603d615d2b19a9e451d8cfac24372856a522d before 6fe7d13608a9d1cf5aff9decc0cc653b0f38f537; affected 597603d615d2b19a9e451d8cfac24372856a522d before c589aeaadfde1cfedb5c6f0a3c782807282126d9; affected 597603d615d2b19a9e451d8cfac24372856a522d before 7b3f9855849363e402bf2141df2b428581cbf31b; affected 597603d615d2b19a9e451d8cfac24372856a522d before efbc2e9e43a1b5c6d75ae47439c06896bb142ae6; affected 597603d615d2b19a9e451d8cfac24372856a522d before 819b106a9fd2ef3fd8abf898b9a8e4524eca8f48
Linux / Linuxaffected 2.6.37; unaffected 0 before 2.6.37; unaffected 5.15.221 through 5.15.*; unaffected 6.1.188 through 6.1.*; unaffected 6.6.157 through 6.6.*; unaffected 6.12.109 through 6.12.*; unaffected 6.18.50 through 6.18.*; unaffected 7.2.4 through 7.2.*; unaffected 7.3 through *

CWE

No CWE identifiers supplied.

References