This is a note to let you know that I've just added the patch titled

crypto: talitos - fix IPsec cipher in length

to the 4.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: crypto-talitos-fix-ipsec-cipher-in-length.patch and it can be found in the queue-4.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From 2b1227301a8e4729409694e323b72c064c47cb6b Mon Sep 17 00:00:00 2001

From: LEROY Christophe christophe.leroy@c-s.fr Date: Thu, 22 Mar 2018 10:57:01 +0100 Subject: crypto: talitos - fix IPsec cipher in length MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit

From: LEROY Christophe christophe.leroy@c-s.fr

commit 2b1227301a8e4729409694e323b72c064c47cb6b upstream.

For SEC 2.x+, cipher in length must contain only the ciphertext length. In case of using hardware ICV checking, the ICV length is provided via the "extent" field of the descriptor pointer.

Cc: stable@vger.kernel.org # 4.8+ Fixes: 549bd8bc5987 ("crypto: talitos - Implement AEAD for SEC1 using HMAC_SNOOP_NO_AFEU") Reported-by: Horia Geantă horia.geanta@nxp.com Signed-off-by: Christophe Leroy christophe.leroy@c-s.fr Tested-by: Horia Geantă horia.geanta@nxp.com Signed-off-by: Herbert Xu herbert@gondor.apana.org.au Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- drivers/crypto/talitos.c | 36 ++++++++++++++++++++---------------- 1 file changed, 20 insertions(+), 16 deletions(-)

--- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -1128,10 +1128,10 @@ next: return count; }

-static int talitos_sg_map(struct device *dev, struct scatterlist *src, - unsigned int len, struct talitos_edesc *edesc, - struct talitos_ptr *ptr, - int sg_count, unsigned int offset, int tbl_off) +static int talitos_sg_map_ext(struct device *dev, struct scatterlist *src, + unsigned int len, struct talitos_edesc *edesc, + struct talitos_ptr *ptr, int sg_count, + unsigned int offset, int tbl_off, int elen) { struct talitos_private *priv = dev_get_drvdata(dev); bool is_sec1 = has_ftr_sec1(priv); @@ -1140,6 +1140,7 @@ static int talitos_sg_map(struct device to_talitos_ptr(ptr, 0, 0, is_sec1); return 1; } + to_talitos_ptr_ext_set(ptr, elen, is_sec1); if (sg_count == 1) { to_talitos_ptr(ptr, sg_dma_address(src) + offset, len, is_sec1); return sg_count; @@ -1148,7 +1149,7 @@ static int talitos_sg_map(struct device to_talitos_ptr(ptr, edesc->dma_link_tbl + offset, len, is_sec1); return sg_count; } - sg_count = sg_to_link_tbl_offset(src, sg_count, offset, len, + sg_count = sg_to_link_tbl_offset(src, sg_count, offset, len + elen, &edesc->link_tbl[tbl_off]); if (sg_count == 1) { /* Only one segment now, so no link tbl needed*/ @@ -1162,6 +1163,15 @@ static int talitos_sg_map(struct device return sg_count; }

+static int talitos_sg_map(struct device *dev, struct scatterlist *src, + unsigned int len, struct talitos_edesc *edesc, + struct talitos_ptr *ptr, int sg_count, + unsigned int offset, int tbl_off) +{ + return talitos_sg_map_ext(dev, src, len, edesc, ptr, sg_count, offset, + tbl_off, 0); +} + /* * fill in and submit ipsec_esp descriptor */ @@ -1179,7 +1189,7 @@ static int ipsec_esp(struct talitos_edes unsigned int ivsize = crypto_aead_ivsize(aead); int tbl_off = 0; int sg_count, ret; - int sg_link_tbl_len; + int elen = 0; bool sync_needed = false; struct talitos_private *priv = dev_get_drvdata(dev); bool is_sec1 = has_ftr_sec1(priv); @@ -1221,17 +1231,11 @@ static int ipsec_esp(struct talitos_edes * extent is bytes of HMAC postpended to ciphertext, * typically 12 for ipsec */ - sg_link_tbl_len = cryptlen; - - if (is_ipsec_esp) { - to_talitos_ptr_ext_set(&desc->ptr[4], authsize, is_sec1); - - if (desc->hdr & DESC_HDR_MODE1_MDEU_CICV) - sg_link_tbl_len += authsize; - } + if (is_ipsec_esp && (desc->hdr & DESC_HDR_MODE1_MDEU_CICV)) + elen = authsize;

- ret = talitos_sg_map(dev, areq->src, sg_link_tbl_len, edesc, - &desc->ptr[4], sg_count, areq->assoclen, tbl_off); + ret = talitos_sg_map_ext(dev, areq->src, cryptlen, edesc, &desc->ptr[4], + sg_count, areq->assoclen, tbl_off, elen);

if (ret > 1) { tbl_off += ret;

Patches currently in stable-queue which might be from christophe.leroy@c-s.fr are

queue-4.15/crypto-talitos-fix-ipsec-cipher-in-length.patch queue-4.15/crypto-talitos-don-t-persistently-map-req_ctx-hw_context-and-req_ctx-buf.patch