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crypto: algif_aead - Fix kernel panic on list_del

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Kernel panics when userspace program try to access AEAD interface.
Remove node from Linked List before freeing its memory.

Cc: <stable@vger.kernel.org>
Signed-off-by: Harsh Jain <harsh@chelsio.com>
Reviewed-by: Stephan Müller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Harsh Jain 2017-02-01 21:10:28 +05:30 committed by Herbert Xu
parent c268199000
commit 0b529f143e
1 changed files with 1 additions and 1 deletions
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2
crypto/algif_aead.c
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@ -661,9 +661,9 @@ static int aead_recvmsg_sync(struct socket *sock, struct msghdr *msg, int flags)
unlock:
list_for_each_entry_safe(rsgl, tmp, &ctx->list, list) {
af_alg_free_sg(&rsgl->sgl);
list_del(&rsgl->list);
if (rsgl != &ctx->first_rsgl)
sock_kfree_s(sk, rsgl, sizeof(*rsgl));
list_del(&rsgl->list);
}
INIT_LIST_HEAD(&ctx->list);
aead_wmem_wakeup(sk);