Bug 2482142 (CVE-2026-46085)

Summary: CVE-2026-46085 kernel: rxrpc: Fix rxkad crypto unalignment handling
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
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Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in the Linux kernel's rxrpc subsystem, specifically in the rxkad crypto unalignment handling. A remote attacker could send a specially crafted packet with a misaligned crypto length. This improper handling could lead to system instability or a denial of service (DoS) due to incorrect decryption error handling and the removal of a remotely triggerable warning mechanism.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-05-27 15:13:19 UTC
In the Linux kernel, the following vulnerability has been resolved:

rxrpc: Fix rxkad crypto unalignment handling

Fix handling of a packet with a misaligned crypto length.  Also handle
non-ENOMEM errors from decryption by aborting.  Further, remove the
WARN_ON_ONCE() so that it can't be remotely triggered (a trace line can
still be emitted).