Bug 2516904 (CVE-2026-74431)

Summary: CVE-2026-74431 kernel: rxrpc: Fix potential infinite loop in rxrpc_recvmsg()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
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 network protocol implementation. This vulnerability could allow an attacker to trigger an infinite loop within the `rxrpc_recvmsg()` function by manipulating out-of-band (OOB) queue handling. This could lead to a Denial of Service (DoS) condition, making the system unresponsive.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-08-15 06:39:34 UTC
In the Linux kernel, the following vulnerability has been resolved:

rxrpc: Fix potential infinite loop in rxrpc_recvmsg()

Fix the wait in rxrpc_recvmsg() also take check the oob queue.