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{ "id": 2220165, "url": "http://patchwork.ozlabs.org/api/covers/2220165/?format=api", "web_url": "http://patchwork.ozlabs.org/project/ubuntu-kernel/cover/20260406145717.1882741-1-john.cabaj@canonical.com/", "project": { "id": 15, "url": "http://patchwork.ozlabs.org/api/projects/15/?format=api", "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": "<20260406145717.1882741-1-john.cabaj@canonical.com>", "list_archive_url": null, "date": "2026-04-06T14:57:13", "name": "[SRU,Q/N/J:linux-azure,0/2] Backporting critical SMB client fixes to affected Ubuntu distros", "submitter": { "id": 85032, "url": "http://patchwork.ozlabs.org/api/people/85032/?format=api", "name": "John Cabaj", "email": "john.cabaj@canonical.com" }, "mbox": "http://patchwork.ozlabs.org/project/ubuntu-kernel/cover/20260406145717.1882741-1-john.cabaj@canonical.com/mbox/", "series": [ { "id": 498864, "url": "http://patchwork.ozlabs.org/api/series/498864/?format=api", "web_url": "http://patchwork.ozlabs.org/project/ubuntu-kernel/list/?series=498864", "date": "2026-04-06T14:57:15", "name": "Backporting critical SMB client fixes to affected Ubuntu distros", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/498864/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2220165/comments/", "headers": { "Return-Path": "<kernel-team-bounces@lists.ubuntu.com>", "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=MCADrPZa;\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 4fqC9T4ClDz1yGn\n\tfor <incoming@patchwork.ozlabs.org>; Tue, 07 Apr 2026 00:57:33 +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 <kernel-team-bounces@lists.ubuntu.com>)\n\tid 1w9lOE-0006du-1z; Mon, 06 Apr 2026 14:57:22 +0000", "from smtp-relay-internal-0.internal ([10.131.114.225]\n helo=smtp-relay-internal-0.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 <john.cabaj@canonical.com>)\n id 1w9lOC-0006cb-4c\n for kernel-team@lists.ubuntu.com; Mon, 06 Apr 2026 14:57:20 +0000", "from mail-oi1-f200.google.com (mail-oi1-f200.google.com\n [209.85.167.200])\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-0.canonical.com (Postfix) with ESMTPS id ECCAB3F288\n for <kernel-team@lists.ubuntu.com>; Mon, 6 Apr 2026 14:57:19 +0000 (UTC)", "by mail-oi1-f200.google.com with SMTP id\n 5614622812f47-4723af8974fso528335b6e.3\n for <kernel-team@lists.ubuntu.com>; Mon, 06 Apr 2026 07:57:19 -0700 (PDT)", "from smtp.gmail.com\n (h208-73-92-250.mdtnwi.broadband.dynamic.tds.net. [208.73.92.250])\n by smtp.gmail.com with ESMTPSA id\n 006d021491bc7-682991a4c09sm5727704eaf.12.2026.04.06.07.57.17\n (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);\n Mon, 06 Apr 2026 07:57:18 -0700 (PDT)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=canonical.com;\n s=20251003; t=1775487439;\n bh=yqIf/JuZF0xYdbS/jtat8LE9BM8KDSgdPy49qMWZW24=;\n h=From:To:Cc:Subject:Date:Message-ID:MIME-Version;\n b=MCADrPZafI9gq47RY6Mt0atgJ+ZEpBBDaxPwydJnxgsPScPUKIKbEnpUvzc1niu40\n DK3FUqdm6jPTdkGjbTx25yEeB8no/V2LtxF0mrCAtID9vt2n8WK9qeveML26evhBiw\n 6K96/WGW3e7YGTKSfWUEMAlF9kfmYu6srMEMMZ58ZRowxsD2hRFRaCSaCzImAiEa6h\n uOn7jbEQ1ql2TjfhVD41f3HhSW8n6JvCCY4sW8nm9QbhsP6EmfHbJcdBllsP/TIsmS\n 4llVPGo41BU01K5zVwbkoP6r1103Qmbiig/FDydPvTmfXWarE7a0hAaPa3nWtOm3hZ\n EKmgkNGYl47pu4LuED4bLH3zOXswtNQ3jA3TbXJDi/BNHxsO1k/7JR/HiqXlkz9w5L\n NXHOB1T4II7EFEVWX+AO/40FjujWFfSmoXKB4ssePDd8YQ7PoL91qiYEM+dAO53dHV\n LeTjV1fHuolt/I2brcPWSlOVidhB99SxQysvmyPegV2lvtwY77t4whj3WQG45atZv/\n kbxVcrlQviPirRzVH+bBE6EF+Dn9oVf9/tirc7ArPlonKCnpSeQEkLQRi6C4Bjw61l\n ozL3EGeD1AgGN0ujzDqiGJRirSUN5v0Y78jjxOGwMVAJydCyDpHgjpZYLG/wIBSX0e\n Et/5Pff6J1kylz0bL0cOOb00=", "X-Google-DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=1e100.net; s=20251104; t=1775487439; x=1776092239;\n h=content-transfer-encoding:mime-version:message-id:date:subject:cc\n :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date\n :message-id:reply-to;\n bh=yqIf/JuZF0xYdbS/jtat8LE9BM8KDSgdPy49qMWZW24=;\n b=PH95wS2Dr6ZJT6/v/kizyRq42GtjHCToCVnefAGApOrV2LP+uiWB5IPyTHCdpG1iaW\n Z0DfRUm0f7xi0ZDd32Z1vK4/AFQK1BImSnF7Q9Ln+AxkVGcO0n3lof1N3cj4KVkDzTMD\n e/2b2UF3oRuPG0K5OvJCeFD/FHS2JoMWWMXddOo353omse/R/v04MNxDG6gW+yY+tW6S\n vx/Ix9K32kWw+uJdsxGk5jDNt3Vbb0B8accDj8GBskW4YCUGfGLvaNtkaLSjVedBv0Qb\n yAIIaeTmk5KEkKxmYM7Mn4mpNL7l0mGZQxBJk0tREXCCLqccYM4ylj1FDngSp0/9nLAN\n S0ow==", "X-Gm-Message-State": "AOJu0Ywbl1l03JMzwMIwZ4eyTDfcJb+xealLfVwRAFeKr4i6lJsK4OaW\n eFZpHSKFGiBjIG5QXFS1y3gFdSufT09tE0I5+RCQZQkpScGGdbLvlIG+rrE1zjqwyOmjYtaAZpA\n lAG2ZbpD1vFKG16fU/tSSXtU1gF1W8u3BmEMEzaVAqanfIHh4TDFwPyVzjzxf8NU3lMYeypZ9/O\n gVrPbQgzNT1aGOOg==", "X-Gm-Gg": "AeBDietr8CZn80xdoSSCgXMEFsBq2tBDKFl2RwAVYzRlLQDtwG1ak1FMpU/YEtN5ZTP\n r/bMOjsyl5fzYjml3PDLW7e0biTp2F0tiOZlBF8KbxFctERpZ9V7s5kZZwpKr03lQ7DKOTrce0v\n 4m6ntUpi7HjDCE0iwYM80yp4Mge/anKa8Ny3cTtbpBVPya8zqQS1hw+2i7r9Mb5QECskvMl18w5\n bLsYFp6C9FwYgZLOHxGAHO6XvlOl32+FP9wZNAvVmPg2yzTfqFUrgJDHVZQkQRWHZo+dGoXaRqo\n WlnWvpfzqPa78ExRBvBFrvdaYNnO/CWDIoGbNV6rlAr7t+nNM0pGFEFklxsp8CV+pq3KMt7JYr8\n w1qX/6ZiS0mstsWyGXPWdMBvPzjih+vkD9GsW7bQ/RrOEFqCh89L06u94h6nsIewwiUKZS0QPQR\n R4J55P8gaRjA==", "X-Received": [ "by 2002:a05:6820:c90:b0:67e:244a:7dd5 with SMTP id\n 006d021491bc7-682202483a8mr7206201eaf.51.1775487438827;\n Mon, 06 Apr 2026 07:57:18 -0700 (PDT)", "by 2002:a05:6820:c90:b0:67e:244a:7dd5 with SMTP id\n 006d021491bc7-682202483a8mr7206192eaf.51.1775487438440;\n Mon, 06 Apr 2026 07:57:18 -0700 (PDT)" ], "From": "John Cabaj <john.cabaj@canonical.com>", "To": "kernel-team@lists.ubuntu.com", "Subject": "[SRU][Q/N/J:linux-azure][PATCH 0/2] Backporting critical SMB client\n fixes to affected Ubuntu distros", "Date": "Mon, 6 Apr 2026 09:57:13 -0500", "Message-ID": "<20260406145717.1882741-1-john.cabaj@canonical.com>", "X-Mailer": "git-send-email 2.43.0", "MIME-Version": "1.0", "X-BeenThere": "kernel-team@lists.ubuntu.com", "X-Mailman-Version": "2.1.20", "Precedence": "list", "List-Id": "Kernel team discussions <kernel-team.lists.ubuntu.com>", "List-Unsubscribe": "<https://lists.ubuntu.com/mailman/options/kernel-team>,\n <mailto:kernel-team-request@lists.ubuntu.com?subject=unsubscribe>", "List-Archive": "<https://lists.ubuntu.com/archives/kernel-team>", "List-Post": "<mailto:kernel-team@lists.ubuntu.com>", "List-Help": "<mailto:kernel-team-request@lists.ubuntu.com?subject=help>", "List-Subscribe": "<https://lists.ubuntu.com/mailman/listinfo/kernel-team>,\n <mailto:kernel-team-request@lists.ubuntu.com?subject=subscribe>", "Content-Type": "text/plain; charset=\"utf-8\"", "Content-Transfer-Encoding": "base64", "Errors-To": "kernel-team-bounces@lists.ubuntu.com", "Sender": "\"kernel-team\" <kernel-team-bounces@lists.ubuntu.com>" }, "content": "BugLink: https://bugs.launchpad.net/bugs/2147347\n\nSRU Justification\n\n[Impact]\n\n* Microsoft requested patches to address potential data corruption issues when network disconnects during extended writes.\n\n[Fix]\nQuesting\n* clean cherry-pick of upstream patches:\n * d78840a6a38d: \"smb: client: fix in-place encryption corruption in SMB2_write()\"\n * e3beefd3af09: \"cifs: make default value of retrans as zero\"\nNoble/Jammy\n* clean cherry-pick of upstream patch:\n * d78840a6a38d: \"smb: client: fix in-place encryption corruption in SMB2_write()\"\n* simple backport of upstream patch:\n * e3beefd3af09: \"cifs: make default value of retrans as zero\"\n\n[Test Plan]\n\n* Compile tested\n* Microsoft to test\n\n[Regression potential]\n\n* Patches limited to CIFs. Possible regressions result in unexpected behavior of CIFs driver.\n\n[Other info]\n\n* SF#00432539\n\nBharath SM (1):\n smb: client: fix in-place encryption corruption in SMB2_write()\n\nShyam Prasad N (1):\n cifs: make default value of retrans as zero\n\n fs/smb/client/fs_context.c | 2 +-\n fs/smb/client/smb2pdu.c | 5 ++++-\n 2 files changed, 5 insertions(+), 2 deletions(-)" }