Bug 2461573 (CVE-2026-31631) - CVE-2026-31631 kernel: rxrpc: Fix buffer overread in rxgk_do_verify_authenticator()
Summary: CVE-2026-31631 kernel: rxrpc: Fix buffer overread in rxgk_do_verify_authentic...
Keywords:
Status: NEW
Alias: CVE-2026-31631
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-24 15:09 UTC by OSIDB Bzimport
Modified: 2026-04-24 20:53 UTC (History)
2 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-04-24 15:09:13 UTC 
In the Linux kernel, the following vulnerability has been resolved:

rxrpc: Fix buffer overread in rxgk_do_verify_authenticator()

Fix rxgk_do_verify_authenticator() to check the buffer size before checking
the nonce.
Comment 1 Keith Grant 2026-04-24 20:49:38 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026042453-CVE-2026-31631-ac3f@gregkh/T
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