{"id":2231535,"url":"http://patchwork.ozlabs.org/api/patches/2231535/?format=json","web_url":"http://patchwork.ozlabs.org/project/ubuntu-kernel/patch/ff213c0a7956fbef5622153f8625be88df3b1775.1777577013.git.massimiliano.pellizzer@canonical.com/","project":{"id":15,"url":"http://patchwork.ozlabs.org/api/projects/15/?format=json","name":"Ubuntu Kernel","link_name":"ubuntu-kernel","list_id":"kernel-team.lists.ubuntu.com","list_email":"kernel-team@lists.ubuntu.com","web_url":null,"scm_url":null,"webscm_url":null,"list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"","list_archive_url":null,"date":"2026-04-30T19:28:28","name":"[SRU,J,v2,7/9] crypto: authencesn - Fix src offset when decrypting in-place","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"99d69b2d7e06e72e8af14e3044a71aa7fd9834e0","submitter":{"id":89057,"url":"http://patchwork.ozlabs.org/api/people/89057/?format=json","name":"Massimiliano Pellizzer","email":"massimiliano.pellizzer@canonical.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/ubuntu-kernel/patch/ff213c0a7956fbef5622153f8625be88df3b1775.1777577013.git.massimiliano.pellizzer@canonical.com/mbox/","series":[{"id":502368,"url":"http://patchwork.ozlabs.org/api/series/502368/?format=json","web_url":"http://patchwork.ozlabs.org/project/ubuntu-kernel/list/?series=502368","date":"2026-04-30T19:28:21","name":"CVE-2026-31431","version":2,"mbox":"http://patchwork.ozlabs.org/series/502368/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2231535/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2231535/checks/","tags":{},"related":[],"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (4096-bit key;\n unprotected) header.d=canonical.com header.i=@canonical.com\n header.a=rsa-sha256 header.s=20251003 header.b=aTlfsImg;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ubuntu.com\n (client-ip=185.125.189.65; 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charset=\"utf-8\"","Content-Transfer-Encoding":"base64","Errors-To":"kernel-team-bounces@lists.ubuntu.com","Sender":"\"kernel-team\" "},"content":"From: Herbert Xu \n\ncommit 1f48ad3b19a9dfc947868edda0bb8e48e5b5a8fa upstream.\n\nThe src SG list offset wasn't set properly when decrypting in-place,\nfix it.\n\nReported-by: Wolfgang Walter \nFixes: e02494114ebf (\"crypto: authencesn - Do not place hiseq at end of dst for out-of-place decryption\")\nSigned-off-by: Herbert Xu \nSigned-off-by: Eric Biggers \nSigned-off-by: Greg Kroah-Hartman \n(cherry picked from commit 723bb1b4a6ddef4491b7d949912c6c09be7184da linux-5.15.y)\nCVE-2026-31431\nSigned-off-by: Massimiliano Pellizzer \n---\n crypto/authencesn.c | 6 ++++--\n 1 file changed, 4 insertions(+), 2 deletions(-)","diff":"diff --git a/crypto/authencesn.c b/crypto/authencesn.c\nindex 5dc057cb0cdf1..2154d4ab5c952 100644\n--- a/crypto/authencesn.c\n+++ b/crypto/authencesn.c\n@@ -235,9 +235,11 @@ static int crypto_authenc_esn_decrypt_tail(struct aead_request *req,\n \n decrypt:\n \n-\tif (src != dst)\n-\t\tsrc = scatterwalk_ffwd(areq_ctx->src, src, assoclen);\n \tdst = scatterwalk_ffwd(areq_ctx->dst, dst, assoclen);\n+\tif (req->src == req->dst)\n+\t\tsrc = dst;\n+\telse\n+\t\tsrc = scatterwalk_ffwd(areq_ctx->src, src, assoclen);\n \n \tskcipher_request_set_tfm(skreq, ctx->enc);\n \tskcipher_request_set_callback(skreq, flags,\n","prefixes":["SRU","J","v2","7/9"]}