From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 78B7C4457AF for ; Wed, 26 Aug 2026 14:41:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787755272; cv=none; b=eTWzFrqYQqevq7K6nyrGhV/ylWneyU83czl10aI+84yxl3FTOW334SGHOdZQdlZEGWINgVCi/21n/NolG2njpbitEBGJCMpqPitaSkRl5ryUiGyYmb9VK45CKdZbYxT85exFIuVgwYy9qvWT2Y6XM3ipI+JkN1feiDujhN+8aJc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787755272; c=relaxed/simple; bh=CAeojSlB8FjDVC5tpOax4cF6A735zKHyC4lLdA+J3MM=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=dIAdaOeBab5QjjXkF7if9dAaVO9LuFZ8XXiPrDl/Ebyi+FAvM0hxdSsH17ZavuaU4K/iH6dRSVaHga2mEwa11S0jET2gquJasGoR13/JnjONkTInyiFNbv5ZQzeOvRGd3siHNuV6Og12Y/DOgDj8D3PFdc89dIkiCZYG9FB7WMo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=k4WRAgFc; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="k4WRAgFc" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 126B01F00A3A; Wed, 26 Aug 2026 14:41:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1787755266; bh=UMakj7hGR2qzCbnqg+nzwtG4l1rvxx8Nt62rKwFiy5g=; h=From:To:Cc:Subject:Date:Reply-To; b=k4WRAgFcCQdOoRkNn3fhR5uqz72C8/XWdObuumNUssH69ZUSnL1/+HOb/TFelJBH6 8ytut8LpBkH1rIRRK/hsz4qY4Pwh5VE4Yj8NtCWLD+p2izBDO19QnLcWQlLx2zqYdC 1A8BMUstYKuztBLylODoKaiNowaIWfPw0reFzHDc= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-80531: xfs: avoid UAF on sc->tempip in xrep_tempfile_create Date: Wed, 26 Aug 2026 16:37:27 +0200 Message-ID: <2026082603-CVE-2026-80531-36dd@gregkh> X-Mailer: git-send-email 2.55.0 Reply-To: , Precedence: bulk X-Mailing-List: linux-cve-announce@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2319; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=i/QUNFzgy9qEqE5ny+x3hBHuz6h7qzlUlooy4qame3U=; b=owGbwMvMwCRo6H6F97bub03G02pJDFl9v/jff+5faV39PfOR9JsFcXxH9bn4LVb9/+C9esr2R anipu/md8SyMAgyMciKKbJ82cZzdH/FIUUvQ9vTMHNYmUCGMHBxCsBE/C4zzPd6fC9l1bl5Oluu RkbcSGdSvbyvXJdhfjz75dxFn787lIbmGhj+LM5nbOzZAQA= X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Content-Transfer-Encoding: 8bit From: Greg Kroah-Hartman Description =========== In the Linux kernel, the following vulnerability has been resolved: xfs: avoid UAF on sc->tempip in xrep_tempfile_create LOLLM noticed a potential UAF if the tempfile creation code fails after it set sc->tempip. Fix that. The Linux kernel CVE team has assigned CVE-2026-80531 to this issue. Affected and fixed versions =========================== Issue introduced in 6.10 with commit 84c14ee39dd388d73054181c70b3f42af7ddc238 and fixed in 6.12.105 with commit 08a20776ce33a2a52d856911e447c59424f0465a Issue introduced in 6.10 with commit 84c14ee39dd388d73054181c70b3f42af7ddc238 and fixed in 6.18.46 with commit cd1f876d1bc2e94f271e07c606cacd85b109108a Issue introduced in 6.10 with commit 84c14ee39dd388d73054181c70b3f42af7ddc238 and fixed in 7.1.10 with commit 96246a3200d32a43766152e56bc7ae2d93604d74 Issue introduced in 6.10 with commit 84c14ee39dd388d73054181c70b3f42af7ddc238 and fixed in 7.2 with commit 0c88e10d12de9ca7cbed1467bb1b52310101bff8 Please see https://www.kernel.org for a full list of currently supported kernel versions by the kernel community. Unaffected versions might change over time as fixes are backported to older supported kernel versions. The official CVE entry at https://cve.org/CVERecord/?id=CVE-2026-80531 will be updated if fixes are backported, please check that for the most up to date information about this issue. Affected files ============== The file(s) affected by this issue are: fs/xfs/scrub/tempfile.c Mitigation ========== The Linux kernel CVE team recommends that you update to the latest stable kernel version for this, and many other bugfixes. Individual changes are never tested alone, but rather are part of a larger kernel release. Cherry-picking individual commits is not recommended or supported by the Linux kernel community at all. If however, updating to the latest release is impossible, the individual changes to resolve this issue can be found at these commits: https://git.kernel.org/stable/c/08a20776ce33a2a52d856911e447c59424f0465a https://git.kernel.org/stable/c/cd1f876d1bc2e94f271e07c606cacd85b109108a https://git.kernel.org/stable/c/96246a3200d32a43766152e56bc7ae2d93604d74 https://git.kernel.org/stable/c/0c88e10d12de9ca7cbed1467bb1b52310101bff8