In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix re-decryption of RESPONSE packets If a RESPONSE packet gets a temporary failure during processing, it may end up in a partially decrypted state - and then get requeued for a retry. Fix this by just discarding the packet; we will send another CHALLENGE packet and thereby elicit a further response. Similarly, discard an incoming CHALLENGE packet if we get an error whilst generating a RESPONSE; the server will send another CHALLENGE.
Fix
Patch, vendor advisory and mitigation references on NVD 5
- https://git.kernel.org/stable/c/0422e7a4883f25101903f3e8105c0808aa5f4ce9 Patch
- https://git.kernel.org/stable/c/76cb9a2d252274adfae6e293a292434631a7d472 Patch
- https://git.kernel.org/stable/c/7b89868305052b94a91b708c462bc2281fa42a4a Patch
- https://git.kernel.org/stable/c/d61482be4aae1835b78875761206241835a7510e Patch
- https://git.kernel.org/stable/c/f55b383070170e988e4dec28be2af1714d258521 Patch
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 3
- CwesCWE-682NVD modified 2026-10-19 20:18
- StatusAnalyzed → ModifiedNVD modified 2026-10-19 20:18
- First seenCVSS 9.8 · linuxNVD modified 2026-10-16 16:17
Affected (CPE criteria) 1
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
References 5
- https://git.kernel.org/stable/c/0422e7a4883f25101903f3e8105c0808aa5f4ce9 Patch
- https://git.kernel.org/stable/c/76cb9a2d252274adfae6e293a292434631a7d472 Patch
- https://git.kernel.org/stable/c/7b89868305052b94a91b708c462bc2281fa42a4a Patch
- https://git.kernel.org/stable/c/d61482be4aae1835b78875761206241835a7510e Patch
- https://git.kernel.org/stable/c/f55b383070170e988e4dec28be2af1714d258521 Patch