| Message ID | 1453853587-21426-1-git-send-email-kamal@canonical.com |
|---|---|
| State | New |
| Headers | show |
diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c index 1a0fe4f..9565568 100644 --- a/crypto/algif_skcipher.c +++ b/crypto/algif_skcipher.c @@ -392,7 +392,8 @@ static int skcipher_sendmsg(struct socket *sock, struct msghdr *msg, sgl = list_entry(ctx->tsgl.prev, struct skcipher_sg_list, list); sg = sgl->sg; - sg_unmark_end(sg + sgl->cur); + if (sgl->cur) + sg_unmark_end(sg + sgl->cur - 1); do { i = sgl->cur; plen = min_t(int, len, PAGE_SIZE);
This is a note to let you know that I have just added a patch titled crypto: algif_skcipher - sendmsg SG marking is off by one to the linux-4.2.y-queue branch of the 4.2.y-ckt extended stable tree which can be found at: http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-4.2.y-queue This patch is scheduled to be released in version 4.2.8-ckt3. If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 4.2.y-ckt tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Kamal ---8<------------------------------------------------------------ From 79e2ed0efa31659626b7d1268ed18a802820de30 Mon Sep 17 00:00:00 2001 From: Herbert Xu <herbert@gondor.apana.org.au> Date: Tue, 19 Jan 2016 21:23:57 +0800 Subject: crypto: algif_skcipher - sendmsg SG marking is off by one commit 202736d99b7f29279db9da61587f11a08a04a9c6 upstream. We mark the end of the SG list in sendmsg and sendpage and unmark it on the next send call. Unfortunately the unmarking in sendmsg is off-by-one, leading to an SG list that is too short. Fixes: 0f477b655a52 ("crypto: algif - Mark sgl end at the end of data") Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Kamal Mostafa <kamal@canonical.com> --- crypto/algif_skcipher.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) -- 1.9.1