Re: FAILED: patch "[PATCH] crypto: algif_skcipher - Cap recv SG list at ctx->used" failed to apply to 4.9-stable tree

Sasha Levin
2020-06-23T13:15:08Z

On Tue, Jun 23, 2020 at 01:54:47PM +0200, gregkh@linuxfoundation.org wrote:
>
>The patch below does not apply to the 4.9-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@vger.kernel.org>.
>
>thanks,
>
>greg k-h
>
>------------------ original commit in Linus's tree ------------------
>
>From 7cf81954705b7e5b057f7dc39a7ded54422ab6e1 Mon Sep 17 00:00:00 2001
>From: Herbert Xu <herbert@gondor.apana.org.au>
>Date: Fri, 29 May 2020 14:54:43 +1000
>Subject: [PATCH] crypto: algif_skcipher - Cap recv SG list at ctx->used
>
>Somewhere along the line the cap on the SG list length for receive
>was lost. This patch restores it and removes the subsequent test
>which is now redundant.
>
>Fixes: 2d97591ef43d ("crypto: af_alg - consolidation of...")
>Cc: <stable@vger.kernel.org>
>Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
>Reviewed-by: Stephan Mueller <smueller@chronox.de>
>Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

We don't have 2d97591ef43d ("crypto: af_alg - consolidation of duplicate
code") in our 4.9 and 4.4 trees.

We do carry an "out of tree" backport that fixes an issue silently fixed
by 2d97591ef43d, but it does not introduce the issue that this patch
fixes.

--
Thanks,
Sasha