Files
android_kernel_fxtec_sm6115/crypto
Taeyang Lee 949e09166d crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec
[ Upstream commit 2397e9264676be7794f8f7f1e9763d90bd3c7335 ]

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.

Fixes: 104880a6b4 ("crypto: authencesn - Convert to new AEAD interface")
Reported-By: Taeyang Lee <0wn@theori.io>
Signed-off-by: Taeyang Lee <0wn@theori.io>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Ulrich Hecht <uli@kernel.org>
2026-02-20 13:22:31 +08:00
..
2018-07-20 13:51:21 +08:00
2018-11-13 11:08:46 -08:00