{"id":2231273,"url":"http://patchwork.ozlabs.org/api/1.2/patches/2231273/?format=json","web_url":"http://patchwork.ozlabs.org/project/ubuntu-kernel/patch/e41a08b7ba655a0fba145d507bbfb66a25b050e9.1777552173.git.massimiliano.pellizzer@canonical.com/","project":{"id":15,"url":"http://patchwork.ozlabs.org/api/1.2/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":"2026-04-30T12:30:37","name":"[SRU,J,9/9] crypto: algif_aead - Fix minimum RX size check for decryption","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"d65a9fa861a431b0ec42301a0373de6fbebdc496","submitter":{"id":89057,"url":"http://patchwork.ozlabs.org/api/1.2/people/89057/?format=json","name":"Massimiliano Pellizzer","email":"massimiliano.pellizzer@canonical.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/ubuntu-kernel/patch/e41a08b7ba655a0fba145d507bbfb66a25b050e9.1777552173.git.massimiliano.pellizzer@canonical.com/mbox/","series":[{"id":502300,"url":"http://patchwork.ozlabs.org/api/1.2/series/502300/?format=json","web_url":"http://patchwork.ozlabs.org/project/ubuntu-kernel/list/?series=502300","date":"2026-04-30T12:30:28","name":"CVE-2026-31431","version":1,"mbox":"http://patchwork.ozlabs.org/series/502300/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2231273/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2231273/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=oIkWnRTD;\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; helo=lists.ubuntu.com;\n envelope-from=kernel-team-bounces@lists.ubuntu.com;\n receiver=patchwork.ozlabs.org)"],"Received":["from lists.ubuntu.com (lists.ubuntu.com [185.125.189.65])\n\t(using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4g5tpb2my4z23gq\n\tfor ; Thu, 30 Apr 2026 22:32:07 +1000 (AEST)","from localhost ([127.0.0.1] helo=lists.ubuntu.com)\n\tby lists.ubuntu.com with esmtp (Exim 4.86_2)\n\t(envelope-from )\n\tid 1wIQYh-0006m1-EO; Thu, 30 Apr 2026 12:31:59 +0000","from smtp-relay-internal-1.internal ([10.131.114.114]\n helo=smtp-relay-internal-1.canonical.com)\n by lists.ubuntu.com with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128)\n (Exim 4.86_2) (envelope-from )\n id 1wIQYO-0005Kt-2i\n for kernel-team@lists.ubuntu.com; Thu, 30 Apr 2026 12:31:40 +0000","from mail-wm1-f69.google.com (mail-wm1-f69.google.com\n [209.85.128.69])\n (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest\n SHA256)\n (No client certificate requested)\n by smtp-relay-internal-1.canonical.com (Postfix) with ESMTPS id 710223F9CB\n for ; Thu, 30 Apr 2026 12:31:39 +0000 (UTC)","by mail-wm1-f69.google.com with SMTP id\n 5b1f17b1804b1-488c0fcc6deso6956325e9.2\n for ; Thu, 30 Apr 2026 05:31:39 -0700 (PDT)","from tuxedo-infinitybook.ts.net\n (net-93-71-66-38.cust.vodafonedsl.it. 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Fix this by adding the\nrequired extra length.\n\nReported-by: syzbot+aa11561819dc42ebbc7c@syzkaller.appspotmail.com\nReported-by: Daniel Pouzzner \nFixes: d887c52d6ae4 (\"crypto: algif_aead - overhaul memory management\")\nSigned-off-by: Herbert Xu \nSigned-off-by: Eric Biggers \nSigned-off-by: Greg Kroah-Hartman \n(cherry picked from commit fd427dd84f224309afbcc2cb67c7bb770a01265c linux-5.15.y)\nCVE-2026-31431\nSigned-off-by: Massimiliano Pellizzer \n---\n crypto/algif_aead.c | 2 +-\n 1 file changed, 1 insertion(+), 1 deletion(-)","diff":"diff --git a/crypto/algif_aead.c b/crypto/algif_aead.c\nindex 24e77f4968a61..4a285994d106c 100644\n--- a/crypto/algif_aead.c\n+++ b/crypto/algif_aead.c\n@@ -150,7 +150,7 @@ static int _aead_recvmsg(struct socket *sock, struct msghdr *msg,\n \tif (usedpages < outlen) {\n \t\tsize_t less = outlen - usedpages;\n \n-\t\tif (used < less) {\n+\t\tif (used < less + (ctx->enc ? 0 : as)) {\n \t\t\terr = -EINVAL;\n \t\t\tgoto free;\n \t\t}\n","prefixes":["SRU","J","9/9"]}