From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 8DFF7390CB8 for ; Fri, 8 May 2026 14:23:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778250228; cv=none; b=Rli/VQAROXVoDrffHM10/oBv5CqfMHUlNU64YuLGlWvZmsvL37lYD5ZvgiknswTD++DrgYvdRkqqYs7JaQuf1zQ7VbgzCXequFaaB5LkPi1Q5TOANrKIIZR9fEJXM6jGhEfvYKNBZQegwFNhbfduR4fWfaApkmVuZNdJOU3WE9M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778250228; c=relaxed/simple; bh=qdZbdn+pz6e5q3wiaMStNNfEpU15HTsCAO7cm9aJTmA=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=TV+ebZxf+kZ13bqWtCioYDpTJ9bAS5YV2bfphx6YljvP649HXq4siA15ZNWIe5eLTQoCmZD2NzFgV302vCFKhLYYT4S5WFfM7l87SV6WjhmvY+kbJ/Yk5zlViBnHXgddIhQcSmdFXaa8SmMlv/1f0X2OyN2/kxSRsHv/0jwugs0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=ilqlNOyH; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="ilqlNOyH" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 23121C2BCB0; Fri, 8 May 2026 14:23:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1778250228; bh=qdZbdn+pz6e5q3wiaMStNNfEpU15HTsCAO7cm9aJTmA=; h=From:To:Cc:Subject:Date:Reply-To:From; b=ilqlNOyHBwq5996gFmf63yWnFgh232Fdb746+0JX4LIbOYXK3v7f9SVQMEVe8OeFx dbfoWAh+flyz44k4O5QHF1f0pWhVYG6kvunvgZqDV+jUitx/Q4oxERe9gUx6wsA6Jx JhYwOMdv4MvY3lR5aX4bFD0PpeNfdufveUIlZwX4= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-43395: drm/xe/sync: Cleanup partially initialized sync on parse failure Date: Fri, 8 May 2026 16:22:04 +0200 Message-ID: <2026050838-CVE-2026-43395-e92c@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=2652; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=UEe3JhSUyub1U4BHlgbWmxEa1q0wYhDLfTqv5xe4SvQ=; b=owGbwMvMwCRo6H6F97bub03G02pJDJl/PxbJhC5VP/s74YPzO76Oi0mix0OZc7do15txL4rna tNZ6mreEcvCIMjEICumyPJlG8/R/RWHFL0MbU/DzGFlAhnCwMUpABNZ/o9hnsL7zkOrzxdGX0nj zHKasOal87q7xxgWXJ7DfJDPeWt++rXbFTbrp2085HGNDQA= 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: drm/xe/sync: Cleanup partially initialized sync on parse failure xe_sync_entry_parse() can allocate references (syncobj, fence, chain fence, or user fence) before hitting a later failure path. Several of those paths returned directly, leaving partially initialized state and leaking refs. Route these error paths through a common free_sync label and call xe_sync_entry_cleanup(sync) before returning the error. (cherry picked from commit f939bdd9207a5d1fc55cced5459858480686ce22) The Linux kernel CVE team has assigned CVE-2026-43395 to this issue. Affected and fixed versions =========================== Issue introduced in 6.8 with commit dd08ebf6c3525a7ea2186e636df064ea47281987 and fixed in 6.12.78 with commit 91c228f96fcfacc2341a58815b1da8c69da94ebb Issue introduced in 6.8 with commit dd08ebf6c3525a7ea2186e636df064ea47281987 and fixed in 6.18.19 with commit af65cd1853599394b94201c08bed7a46717db478 Issue introduced in 6.8 with commit dd08ebf6c3525a7ea2186e636df064ea47281987 and fixed in 6.19.9 with commit f0af63ffa06306f12592cd3919fad6957b425e1b Issue introduced in 6.8 with commit dd08ebf6c3525a7ea2186e636df064ea47281987 and fixed in 7.0 with commit 1bfd7575092420ba5a0b944953c95b74a5646ff8 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-2026-43395 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/gpu/drm/xe/xe_sync.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/91c228f96fcfacc2341a58815b1da8c69da94ebb https://git.kernel.org/stable/c/af65cd1853599394b94201c08bed7a46717db478 https://git.kernel.org/stable/c/f0af63ffa06306f12592cd3919fad6957b425e1b https://git.kernel.org/stable/c/1bfd7575092420ba5a0b944953c95b74a5646ff8