crypto: algif_aead - Fix kernel panic on list_del

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>

1 files changed, 1 insertions, 1 deletions

diff --git a/crypto/algif_aead.c b/crypto/algif_aead.c
index f849311e9fd4..533265f110e0 100644
--- a/crypto/algif_aead.c
+++ b/crypto/algif_aead.c
@@ -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);