crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec

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No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

In the Linux kernel, the following vulnerability has been resolved: crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec authencesn assumes an ESP/ESN-formatted AAD. When assoclen is shorter than the minimum expected length, crypto_authenc_esn_decrypt() can advance past the end of the destination scatterlist and trigger a NULL pointer dereference in scatterwalk_map_and_copy(), leading to a kernel panic (DoS). Add a minimum AAD length check to fail fast on invalid inputs.

Source published

4 Feb 2026 16:07:42 UTC

Source modified

19 Oct 2026 18:25:28 UTC

Observed here

23 Oct 2026 15:48:27 UTC

Source terms

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