This is a note to let you know that I've just added the patch titled
crypto: algif_aead - Fix kernel panic on list_del
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
crypto-algif_aead-fix-kernel-panic-on-list_del.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 0b529f143e8baad441a5aac9ad55ec2434d8fb46 Mon Sep 17 00:00:00 2001
From: Harsh Jain <harsh@xxxxxxxxxxx>
Date: Wed, 1 Feb 2017 21:10:28 +0530
Subject: crypto: algif_aead - Fix kernel panic on list_del
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From: Harsh Jain <harsh@xxxxxxxxxxx>
commit 0b529f143e8baad441a5aac9ad55ec2434d8fb46 upstream.
Kernel panics when userspace program try to access AEAD interface.
Remove node from Linked List before freeing its memory.
Signed-off-by: Harsh Jain <harsh@xxxxxxxxxxx>
Reviewed-by: Stephan Müller <smueller@xxxxxxxxxx>
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
crypto/algif_aead.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/crypto/algif_aead.c
+++ b/crypto/algif_aead.c
@@ -671,9 +671,9 @@ static int aead_recvmsg_sync(struct sock
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);
Patches currently in stable-queue which might be from harsh@xxxxxxxxxxx are
queue-4.9/crypto-chcr-check-device-is-allocated-before-use.patch
queue-4.9/crypto-algif_aead-fix-kernel-panic-on-list_del.patch
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