From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtpbguseast1.qq.com (smtpbguseast1.qq.com [54.204.34.129]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 90A733B7752 for ; Mon, 11 May 2026 08:17:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=54.204.34.129 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778487493; cv=none; b=la/byjpuBp3mKfH16bAoCg0GZFETdad3rkOzeMyCGgvR1Wa4EXzbyHOXjpYxdWEVyRZwaW62Hwj5e7tYwmz13dTzVGGHT1SPY2srLf2kBCLkboed5/ebcDl2Ze1x5PGuNAuzxtPwj0bKEmEoiPLbS6BIFOxxmiRfzDXvVFiK/kA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778487493; c=relaxed/simple; bh=Ak2TkHolYNU8FLfAolW0An7dtohaOwZFAtJxB4fp7bY=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=hOVIjqtlwzcLhtTfGfPg6/p3kS6/ybPt8eiKQf65s6z5DqP6IM0OQTMwXwaR7Fa5mi8vCaFSYRckRlRG9BiVyheZUiYH+o9OuLfF8iYbM8xFTA9ZnloWGnmxhqeydS/BiNVZnyyGtdnWahaoYy4K/C7BynYBesf2U1JP26UId/Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=uniontech.com; spf=pass smtp.mailfrom=uniontech.com; dkim=pass (1024-bit key) header.d=uniontech.com header.i=@uniontech.com header.b=EtzkBjNN; arc=none smtp.client-ip=54.204.34.129 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=uniontech.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=uniontech.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=uniontech.com header.i=@uniontech.com header.b="EtzkBjNN" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=uniontech.com; s=onoh2408; t=1778487463; bh=Ak2TkHolYNU8FLfAolW0An7dtohaOwZFAtJxB4fp7bY=; h=From:To:Subject:Date:Message-Id:MIME-Version; b=EtzkBjNNT6MqWnz+30SLT0UnX9eBXnkvJLRXDYBPY37e5R7HbHr6RvnLoaZ2f3s0B cSDOsrjBtdmTAnii+Joe4JxKgZy8pOUQBCR+xw0mMgGwnrJWNKDOUiwfGdJeE3U8Le JhobXX+HANf8dPIWm1ZsuEJhO02mWCdKvkBw48fY= X-QQ-mid: zesmtpip3t1778487457t494da95f X-QQ-Originating-IP: zmgJ3x1ZIlB6iOayDnTVI/8xUra9rLyP+owN1PCastE= Received: from localhost.localdomain ( [localhost]) by bizesmtp.qq.com (ESMTP) with id ; Mon, 11 May 2026 16:17:35 +0800 (CST) X-QQ-SSF: 0000000000000000000000000000000 X-QQ-GoodBg: 1 X-BIZMAIL-ID: 2768946232651250011 EX-QQ-RecipientCnt: 14 From: Wentao Guan To: harshit.m.mogalapalli@oracle.com Cc: dhowells@redhat.com, gregkh@linuxfoundation.org, guanwentao@uniontech.com, horms@kernel.org, imv4bel@gmail.com, jaltman@auristor.com, jiayuan.chen@linux.dev, kuba@kernel.org, linux-afs@lists.infradead.org, marc.dionne@auristor.com, stable@kernel.org, stable@vger.kernel.org, torvalds@linux-foundation.org Subject: Re: Re: [PATCH 6.12.y v3 1/2] rxrpc: Fix conn-level packet handling to unshare RESPONSE packets Date: Mon, 11 May 2026 16:16:19 +0800 Message-Id: <20260511081619.65091-1-guanwentao@uniontech.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: References: Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-QQ-SENDSIZE: 520 Feedback-ID: zesmtpip:uniontech.com:qybglogicsvrgz:qybglogicsvrgz3a-0 X-QQ-XMAILINFO: M3efC+6bo9V5QuM8bLO6lhyAjj/wiZI222Lq/5Br990AB6q5e2n3v1da EsppPJTDZIesgB3HkMbNBbAUvJBUo2Esd2JJ3ixBytuF3e0laIsrlR+6lyDIBn52TLMM4z0 EK7rk2MJ5r5NvOGkRuQCwy+Wf0VMIiOCVsQLYMK8JKbaELh4hJ33oGHjZ9QQdzdOu6EITSN J64PBmiTHQt57/eBLz+MGEs/SxlDdMU8tuPWJpsSX38131FZyg9/UWQj3vuKo2AUOmdMUu5 JzcoIobv9SACqIsP0RVBeufsHNzYSxXPdWHBAnOtJv9u99HWn55LjxwZcCH0+LRCRMC+5La TZwvUP/5Si2uU4IgiGdbN/aHhyro8aGXofHWmebCaNF/MarnxpRdyn+caDOBKEfWZ6S9aeQ 4Kcu9z4GgZDclje5BnmAYepXMJeM19xQjtZqsjMTODE8vIThaADGeseoB7S6muLbQI9pQ6d L2dWKG1IMZGUrx5Ekh55LjJY+DQIc+ng1JjfmP5xY6Ic0m7OW++Zi7QQGZzUVmWaQkfGLRx QQDUDxyKnmenpfr9CMV5zzofUymGeZDIovvapveChNXsya/0Uu7fO2xbxgJTmKo8Vgfq/I5 l5OxhX3QdQyTiY3g0wSri9MD/E2067+Cy4/lCgG16MN9QZ67D+qXX/hukkO8zM0weA1M/LQ XK5q7mLgzZATxDAyfhP2qVJa0M5bnijVxjtahEnG14nTmIJ+53Sm+Ip0juuQqyfKcApij3r UXCartWMdHx1C/1kJNwcnSgyd1qHwJ04QAmwJ9pBvDav/mYITt+A+0RUiO5IqP8rSRgVjcP DwP8S/p6mJ5/orBeIF1yGMQcLrBIieE4E+PeFX+MdDA6q4ix9sB4YDRovuOTUNqO6ODidcE 5laDudwJYtUAbwdTcSA0jZsRjdQAYpyQ0Vcmeyf6cH8h6aXHSZ3A0tYCotJ1uHjVQIoEeCe CJkSigL986J4Y9PoWVFKQYSTHJorl6RTymYgjAjJiuu7XOPnf1q/Q7N+a6PlBFUf4GpBzOG dZFzAJno11X9CWpWvDBJR9g4hBUxGdtwBIyp9F6SnQYfSK7aU6Zb8cb1KptyYTq3RofSInf fT3rAtt6c9DPQzCA2lWlhC0gJ2OZnZBeyeWXK5tW4l+4fl0eyqH4Ae9J4dMHnGQH2adq2fO HK1oTjO6OLvxeolu0nxs1oDg0l183OmZcsvR X-QQ-XMRINFO: NyFYKkN4Ny6FuXrnB5Ye7Aabb3ujjtK+gg== X-QQ-RECHKSPAM: 0 > On 11/05/26 13:11, Wentao Guan wrote: > > [Readd rxrpc_skb_put_response_copy which missed in 016725807ce3 in v6.12.86] > > Stable-dep-of: aa54b1d27fe0 ("rxrpc: Also unshare DATA/RESPONSE packets when > > paged frags are present") > Yes, I noticed this too. Well > But you got the commit wrong I think: (you probably meant) Thanks, i paste wrong commit here, which i reported in https://lore.kernel.org/stable/20260508083142.1752208-1-guanwentao@uniontech.com/ SUMMARY: commit ("rxrpc: Fix potential UAF after skb_unshare() failure"): bf20f46d94f1db38e6ffc0ca204a5fe0de01b495 v6.12 1f2740150f904bfa60e4bad74d65add3ccb5e7f8 upstream is different > Hence Wentao needs to add rxrpc_skb_put_response_copy() in this backport. Yeah. BRs Wentao Guan