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(parent: d6ebcde) | patch
crypto: algif_hash - fix double free in hash_accept
authorIvan Pravdin <ipravdin.official@gmail.com>
Sun, 18 May 2025 22:41:02 +0000 (18:41 -0400)
committerHerbert Xu <herbert@gondor.apana.org.au>
Mon, 19 May 2025 05:44:16 +0000 (13:44 +0800)
commitb2df03ed4052e97126267e8c13ad4204ea6ba9b6
tree195d9ca059427d2a2e481d1e4341ac18ae339189tree
parentd6ebcde6d4ecf34f8495fb30516645db3aea8993commit | diff
crypto: algif_hash - fix double free in hash_accept

If accept(2) is called on socket type algif_hash with
MSG_MORE flag set and crypto_ahash_import fails,
sk2 is freed. However, it is also freed in af_alg_release,
leading to slab-use-after-free error.

Fixes: fe869cdb89c9 ("crypto: algif_hash - User-space interface for hash operations")
Cc: <stable@vger.kernel.org>
Signed-off-by: Ivan Pravdin <ipravdin.official@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto/algif_hash.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)