Bug 2532492 (CVE-2026-80972) - CVE-2026-80972 kernel: Linux kernel ALSA aloop: Out-of-bounds memory access via invalid card index.
Summary: CVE-2026-80972 kernel: Linux kernel ALSA aloop: Out-of-bounds memory access v...
Keywords:
Status: NEW
Alias: CVE-2026-80972
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-11 23:27 UTC by OSIDB Bzimport
Modified: 2026-09-11 23:47 UTC (History)
15 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-09-11 23:27:26 UTC
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.


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