Paper/Archive/CVE-2026-45988

CVE-2026-45988

Linux Linux — rxrpc: Fix re-decryption of RESPONSE packets

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
Linux17926a79320afa9b95df6b977b40cca6d8713cea – < d61482be4aae1835b78875761206241835a7510ed61482be4aae1835b78875761206241835a7510eCNA
Linux17926a79320afa9b95df6b977b40cca6d8713cea – < 7b89868305052b94a91b708c462bc2281fa42a4a7b89868305052b94a91b708c462bc2281fa42a4aCNA
Linux17926a79320afa9b95df6b977b40cca6d8713cea – < 76cb9a2d252274adfae6e293a292434631a7d47276cb9a2d252274adfae6e293a292434631a7d472CNA
Linux17926a79320afa9b95df6b977b40cca6d8713cea – < f55b383070170e988e4dec28be2af1714d258521f55b383070170e988e4dec28be2af1714d258521CNA
Linux17926a79320afa9b95df6b977b40cca6d8713cea – < 0422e7a4883f25101903f3e8105c0808aa5f4ce90422e7a4883f25101903f3e8105c0808aa5f4ce9CNA
Linux2.6.22–CNA

Scores by source

Linux (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refgit.kernel.org/stable/c/d61482be4aae1835b78875761206241835a7510erefgit.kernel.org/stable/c/7b89868305052b94a91b708c462bc2281fa42a4arefgit.kernel.org/stable/c/76cb9a2d252274adfae6e293a292434631a7d472refgit.kernel.org/stable/c/f55b383070170e988e4dec28be2af1714d258521refgit.kernel.org/stable/c/0422e7a4883f25101903f3e8105c0808aa5f4ce9