Bug 2464458 (CVE-2026-31776) - CVE-2026-31776 kernel: ALSA: ctxfi: Fix missing SPDIFI1 index handling
Summary: CVE-2026-31776 kernel: ALSA: ctxfi: Fix missing SPDIFI1 index handling
Keywords:
Status: NEW
Alias: CVE-2026-31776
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-01 15:07 UTC by OSIDB Bzimport
Modified: 2026-05-01 23:25 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-05-01 15:07:56 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ALSA: ctxfi: Fix missing SPDIFI1 index handling

SPDIF1 DAIO type isn't properly handled in daio_device_index() for
hw20k2, and it returned -EINVAL, which ended up with the out-of-bounds
array access.  Follow the hw20k1 pattern and return the proper index
for this type, too.
Comment 1 Keith Grant 2026-05-01 23:22:34 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026050150-CVE-2026-31776-8e0f@gregkh/T
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