High severity7.5NVD Advisory· Published Apr 25, 2026· Updated Jun 1, 2026
CVE-2026-31676
CVE-2026-31676
Description
In the Linux kernel, the following vulnerability has been resolved:
rxrpc: only handle RESPONSE during service challenge
Only process RESPONSE packets while the service connection is still in RXRPC_CONN_SERVICE_CHALLENGING. Check that state under state_lock before running response verification and security initialization, then use a local secured flag to decide whether to queue the secured-connection work after the state transition. This keeps duplicate or late RESPONSE packets from re-running the setup path and removes the unlocked post-transition state test.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
9cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 8 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=2.6.22,<6.6.136
- cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*
- (no CPE)
Patches
Vulnerability mechanics
References
8- git.kernel.org/stable/c/03fd2ef73cb4ffd0af100a95b634af54f474414envdPatch
- git.kernel.org/stable/c/29b44d904dceb832be880def08b8cb17a0aba91cnvdPatch
- git.kernel.org/stable/c/a6bcf8010af093fe04f7100562e9542ab7882585nvdPatch
- git.kernel.org/stable/c/c43ffdcfdbb5567b1f143556df8a04b4eeea041cnvdPatch
- git.kernel.org/stable/c/d0035e634dae83237ab7f5681eb52b2f65d0ceb8nvdPatch
- git.kernel.org/stable/c/0afdfd4941c1b60a1f5c361760daa970edca60cdnvd
- git.kernel.org/stable/c/6c3a0fbdafef8316e34ae22333e317a341e737cdnvd
- git.kernel.org/stable/c/a1a8efde03a40b6c658d580e96644d9b9a2a0d3anvd
News mentions
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