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 B3D392E737D for ; Thu, 24 Sep 2026 15:53:24 +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=1790265206; cv=none; b=lAuqDbQDo72q5/DG1+QL8vKjxQas9vgN0RAX9mnWz69rBqdEVVbhN/E8kmamuWu7TmNpRl3sAdvnNvknDnRLZrhRLTuEGgxrpeKaPqxaxZNiGEDv8RrKUhMpxc5QpN9odMcEwgkp5i9cTKKJDmAry0VAeQul02bECyU96qP42PY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790265206; c=relaxed/simple; bh=jUaHCjWJpPxNfZq+WKIhfk/5dbZC7oAd3V70TLVsOSI=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=VDALOF5vYwgBgZpfksEeoSw3+/0rfLyX/ia3hqmfaEulSadf7dSj/9lAKC+Kp0LND+yOiXiGgsHESzYfR52d5v38ZIq3K4U/6zrDb8Tt5oDHpStaMAWcankRjTRweVZmxk1lHlWunXivkQSlSwRa7UsLzGDBprghtbJ7WScga4U= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=Y/FHJtWt; 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="Y/FHJtWt" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C59011F00898; Thu, 24 Sep 2026 15:53:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1790265204; bh=0c+JlQLwfTeIKSvERCaJq5WgEs4wgJckV8oUJYQASvE=; h=From:To:Cc:Subject:Date:Reply-To; b=Y/FHJtWtdzS9NE2a+Ewt3i1bcqkYvDUwnLuQpkx0mvSE+UZFxwCb52Cg1cYRsbOvr p973U43Rz6z+u08tT8pxuSBCX8Ug3vC0nSqPnHGKXyi0ao8blksgMYy8C4TdohVNeR 4s4dFU80lfp1fhvnQ2Cx9be3zmrImjDhrFdg9Qt0= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-93262: md/raid5-ppl: fix use-after-free in ppl_do_flush() Date: Thu, 24 Sep 2026 17:51:22 +0200 Message-ID: <2026092409-CVE-2026-93262-ca56@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=3343; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=OjzmMRQKb7QH5CLJxt3HDitsTBP4uFyC/bb4lKZRQXo=; b=owGbwMvMwCRo6H6F97bub03G02pJDFlb3d5F3OStd/x6lScv7vLZywwLzz68VGasGjRvhqnmt TMsW2SWd8SyMAgyMciKKbJ82cZzdH/FIUUvQ9vTMHNYmUCGMHBxCsBEIjkZFmzXTXGWKO+6sOZm llKSdmdb52mnYIb5FQ1mN597r/22pkPMw547SnOGxlk7AA== 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: md/raid5-ppl: fix use-after-free in ppl_do_flush() The loop in ppl_do_flush() continues iterating after calling ppl_io_unit_finished(), touching io->pending_flushes and leading to a use-after-free. Add a break statement to stop the loop once io is freed. The Linux kernel CVE team has assigned CVE-2026-93262 to this issue. Affected and fixed versions =========================== Issue introduced in 4.16 with commit 1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 and fixed in 5.10.270 with commit cf01f9413565e86673baf927291a088b6975692b Issue introduced in 4.16 with commit 1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 and fixed in 5.15.221 with commit e7505842f1329ece90cb9ea0db87772aeca44052 Issue introduced in 4.16 with commit 1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 and fixed in 6.1.188 with commit b5123bf667ac29ddd8106f9ca7cc01316513ae66 Issue introduced in 4.16 with commit 1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 and fixed in 6.6.157 with commit e77c80670f2c2bf491da9b173931e1da4677c23a Issue introduced in 4.16 with commit 1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 and fixed in 6.12.110 with commit 8914c3d40870f16429a326e97e4016bedc6ede4c Issue introduced in 4.16 with commit 1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 and fixed in 6.18.52 with commit 455b56209f9615c3902dcc398dd867abb5ade3ab Issue introduced in 4.16 with commit 1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 and fixed in 7.2.6 with commit fcf21df7d3c50c8ebeb0757df5d21b02dcae4218 Issue introduced in 4.16 with commit 1532d9e87e8b2377f12929f9e40724d5fbe6ecc5 and fixed in 7.3-rc1 with commit 371f7a1b392edc8b7cf449cc7713179b588f2d0e 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-2026-93262 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: drivers/md/raid5-ppl.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/cf01f9413565e86673baf927291a088b6975692b https://git.kernel.org/stable/c/e7505842f1329ece90cb9ea0db87772aeca44052 https://git.kernel.org/stable/c/b5123bf667ac29ddd8106f9ca7cc01316513ae66 https://git.kernel.org/stable/c/e77c80670f2c2bf491da9b173931e1da4677c23a https://git.kernel.org/stable/c/8914c3d40870f16429a326e97e4016bedc6ede4c https://git.kernel.org/stable/c/455b56209f9615c3902dcc398dd867abb5ade3ab https://git.kernel.org/stable/c/fcf21df7d3c50c8ebeb0757df5d21b02dcae4218 https://git.kernel.org/stable/c/371f7a1b392edc8b7cf449cc7713179b588f2d0e