On Wed, Apr 15, 2020 at 01:07:08PM +0200, gregkh@xxxxxxxxxxxxxxxxxxx wrote:
The patch below does not apply to the 4.19-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@xxxxxxxxxxxxxxx>.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 504e84abec7a635b861afd8d7f92ecd13eaa2b09 Mon Sep 17 00:00:00 2001
From: Gilad Ben-Yossef <gilad@xxxxxxxxxxxxx>
Date: Wed, 29 Jan 2020 16:37:55 +0200
Subject: [PATCH] crypto: ccree - only try to map auth tag if needed
Make sure to only add the size of the auth tag to the source mapping
for encryption if it is an in-place operation. Failing to do this
previously caused us to try and map auth size len bytes from a NULL
mapping and crashing if both the cryptlen and assoclen are zero.
Reported-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Tested-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Signed-off-by: Gilad Ben-Yossef <gilad@xxxxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx # v4.19+
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Grabbing:
da3cf67f1bcf ("crypto: ccree - don't mangle the request assoclen")
9f31eb6e08cc ("crypto: ccree - zero out internal struct before use")
ccba2f1112d4 ("crypto: ccree - improve error handling")
resolved this conflict.
--
Thanks,
Sasha
