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 B160C3DB653 for ; Fri, 8 May 2026 14:23:58 +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=1778250238; cv=none; b=KtcC9VAitSeo+yGGGRBLnB3KimhDL/o1Ixs/0XB59zyhu9tLetqPxoaQGOU1pJtEzB/pPtt67Xrmq6nDvynh6f0SFrnci+/Qu8OUESPyOiI6tUmBTaMi/VM6RyP6uSgjOmaNEc3eFfQ5eSneEY3GbP6lcVEAHqW2G1GBo7PRzy0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778250238; c=relaxed/simple; bh=L3NPJsWSb2HfzBTcQzZxpGmoLtScCl/2lmtPtZ0Kwwk=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=rf3u23nZDF60yZngyZyFbxkmUFqFOM0puHDV6UTBlzDvY4xsBVl2d7kwBhB83FpVJu+VnTfQHTo+PhUNAp5O2e2exSwJmac7tKnWxL/Cys3YKOI+NBvgEkfhJ0iwo87zAzI3pxH0uhUMIV1UjFSoudlAZXPd6NyEgjJupAnTyv8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=ZvaOoY2q; 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="ZvaOoY2q" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 47562C2BCB0; Fri, 8 May 2026 14:23:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1778250238; bh=L3NPJsWSb2HfzBTcQzZxpGmoLtScCl/2lmtPtZ0Kwwk=; h=From:To:Cc:Subject:Date:Reply-To:From; b=ZvaOoY2qr4SF6nHKKLwUcCgGU+RhzL85s+aPu2kb7fW89IhdOgxqqcPXoxtCkA2RY xqiDIX/YN+3LsgMrJE1u2/60LvxAJh/w7qHZzT8kbuOmonc/JuPXgR8fXur5TvCGg+ GI/CF3l0VwvtQxv0WtfgQBS/7yHLvsjq+p6Hc4xw= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-43399: drm/amdgpu/userq: Fix reference leak in amdgpu_userq_wait_ioctl Date: Fri, 8 May 2026 16:22:08 +0200 Message-ID: <2026050839-CVE-2026-43399-6521@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=2197; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=oqTKxZc2xouQ1ACnaVuRU7fnLRJlUMKRRUT6ycS1Mts=; b=owGbwMvMwCRo6H6F97bub03G02pJDJl/PxYrf3q61GSmMMPeeSze0vbVLG2NabrrFeYvSZ/69 UbWu4PzOmJZGASZGGTFFFm+bOM5ur/ikKKXoe1pmDmsTCBDGLg4BWAi2+czzDNZ+eB7/VL1aZy8 WyZpxjw6dfzPx0SGeZaZ+5orVXpmOrxtsmV9eEEp9dhLOQA= 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/amdgpu/userq: Fix reference leak in amdgpu_userq_wait_ioctl Drop reference to syncobj and timeline fence when aborting the ioctl due output array being too small. (cherry picked from commit 68951e9c3e6bb22396bc42ef2359751c8315dd27) The Linux kernel CVE team has assigned CVE-2026-43399 to this issue. Affected and fixed versions =========================== Issue introduced in 6.16 with commit a292fdecd72834b3bec380baa5db1e69e7f70679 and fixed in 6.18.19 with commit 762f47e2b824383d5be65eee2c40a1269b7d50c8 Issue introduced in 6.16 with commit a292fdecd72834b3bec380baa5db1e69e7f70679 and fixed in 6.19.9 with commit 5409247d41f372bec5b141ef599f2d9f5e81b746 Issue introduced in 6.16 with commit a292fdecd72834b3bec380baa5db1e69e7f70679 and fixed in 7.0 with commit 49abfa812617a7f2d0132c70d23ac98b389c6ec1 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-2026-43399 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/amd/amdgpu/amdgpu_userq_fence.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/762f47e2b824383d5be65eee2c40a1269b7d50c8 https://git.kernel.org/stable/c/5409247d41f372bec5b141ef599f2d9f5e81b746 https://git.kernel.org/stable/c/49abfa812617a7f2d0132c70d23ac98b389c6ec1