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 54C7440628C for ; Wed, 27 May 2026 13:03:17 +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=1779886998; cv=none; b=PNwCLW4hHaxTqHFM+XRl3fzMy44Up7IXUpN/0Z2Z1HxVJX+WiU9tIH+AMy+ePbnK6ejOdjMu7+ai2s8OKSPy8aBph+sTcszWk5VZn44Jth13DxAqyoxryzJEj2lSthrCROYAHI5ky7bbaFJd5c9lHb81rsyAYAnm4Nt1bWwgiSc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779886998; c=relaxed/simple; bh=s52xsAYPd+Ql+yKMgR0D9sx8sZH+VS5/Ou1lO8TmwqA=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=KyPqnnxCIKJ4VjC/SmFdwVlrh/w06hDRUbFgZFhAkYdvbN28nFYi5JkpMAMEgP1I44KQma50WZDjSNR/GzF9RQDvuOACPakppekYxg8AaPVl+0uZUUQLzVnwIL6BLd7+7a1jbv1byzfKQcJwAVWQUTwExkmW0UKTDGGOb5HXDtg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=qUNFeS0o; 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="qUNFeS0o" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 829491F000E9; Wed, 27 May 2026 13:03:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1779886997; bh=PzFhLmmK83tMITZ2oXBYaM26J+Sw5mPdWgyhyuALcFs=; h=From:To:Cc:Subject:Date:Reply-To; b=qUNFeS0oA/U52cwK/r0XsUdsXdtzGBWqM7oimeVESocoh99hvyXgiHr4bn8TC0NKF dpMBkmbCN4bzTvlj8PZMtkS4sUxFDUExHCI+ECF18kjdgqFnrXZgT/wP9dLXU3fWY6 R52Td69oNKSWlQPaG/0iyvu6kDlU5HgxL8pvSgKs= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-46016: remoteproc: xlnx: Only access buffer information if IPI is buffered Date: Wed, 27 May 2026 14:59:07 +0200 Message-ID: <2026052745-CVE-2026-46016-e12d@gregkh> X-Mailer: git-send-email 2.54.0 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=2586; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=nXYSGRUFkWgRPwQ8nKyXEzNSPkWWz5c5456o1HDbIro=; b=owGbwMvMwCRo6H6F97bub03G02pJDFlir1pN81yvOmTK7LhsZPNVpP6V35zUnrcObuq7efedX e46/VZKRywLgyATg6yYIsuXbTxH91ccUvQytD0NM4eVCWQIAxenAExE4znDHM7dXw3i2B4+nDbx 5CG1HV9XKkuGSQBFv4r5BbBIiYp2CfOo5h+IL00RMAEA 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: remoteproc: xlnx: Only access buffer information if IPI is buffered In the receive callback check if message is NULL to prevent possibility of crash by NULL pointer dereferencing. The Linux kernel CVE team has assigned CVE-2026-46016 to this issue. Affected and fixed versions =========================== Issue introduced in 6.4 with commit 5dfb28c257b7c515624ba6b163410ceada451bf2 and fixed in 6.6.140 with commit 5d1451cb2cf6f3d9884d76035a1460aa9bb4b053 Issue introduced in 6.4 with commit 5dfb28c257b7c515624ba6b163410ceada451bf2 and fixed in 6.12.86 with commit 7ddbf21116770b7011f2bb0a6056b7604b24c497 Issue introduced in 6.4 with commit 5dfb28c257b7c515624ba6b163410ceada451bf2 and fixed in 6.18.27 with commit 06d0bed2552fd0dae27d374d4492a2b672e24eed Issue introduced in 6.4 with commit 5dfb28c257b7c515624ba6b163410ceada451bf2 and fixed in 7.0.4 with commit 8242579859a78c801bb626e9aa4823aca93e28e7 Issue introduced in 6.4 with commit 5dfb28c257b7c515624ba6b163410ceada451bf2 and fixed in 7.1-rc1 with commit 38dd6ccfdfbbe865569a52fe1ba9fa1478f672e6 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-2026-46016 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/remoteproc/xlnx_r5_remoteproc.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/5d1451cb2cf6f3d9884d76035a1460aa9bb4b053 https://git.kernel.org/stable/c/7ddbf21116770b7011f2bb0a6056b7604b24c497 https://git.kernel.org/stable/c/06d0bed2552fd0dae27d374d4492a2b672e24eed https://git.kernel.org/stable/c/8242579859a78c801bb626e9aa4823aca93e28e7 https://git.kernel.org/stable/c/38dd6ccfdfbbe865569a52fe1ba9fa1478f672e6