Bug 2464388 (CVE-2026-31777) - CVE-2026-31777 kernel: ALSA: ctxfi: Check the error for index mapping
Summary: CVE-2026-31777 kernel: ALSA: ctxfi: Check the error for index mapping
Keywords:
Status: NEW
Alias: CVE-2026-31777
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 15:03 UTC by OSIDB Bzimport
Modified: 2026-05-01 23:28 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-05-01 15:03:55 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ALSA: ctxfi: Check the error for index mapping

The ctxfi driver blindly assumed a proper value returned from
daio_device_index(), but it's not always true.  Add a proper error
check to deal with the error from the function.
Comment 1 Keith Grant 2026-05-01 23:26:38 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026050150-CVE-2026-31777-20f9@gregkh/T
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