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 866E23E1236 for ; Tue, 6 Oct 2026 10:27:52 +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=1791282473; cv=none; b=UWE/YEFHSfQN0iPM2VRpaIh/EN/Jrs0JTaJt2r0gzzCTa4GP30RcLzFrxsZDzSDiaT5uAeehNjEhDqqpfBbrrXtc7iiAqes9gDkkxthnF0bhk2PBwekW825e66ZV7XY+KCMfB9C+017QeCV04hSsP7UpklbKR+qhXgcXCU0nZLo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791282473; c=relaxed/simple; bh=yav9ZE8+gVU4T2L3h3CHAx34+gPgxX6Kmf4fbjqWfew=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=N6t4ed4LtDpBWiaHny2XZ0cBUen4dWYXTOfO3s+FeoV62bwobwHe9vqoqTunV1hAt3ZRnOKI6UC5TKg1gry1C1/I0V42XSV8/hCUfMJNTJc1Kw+uJnp9AZ7zwKesLlYPrett/NdPNfQ9PHOBPnyxiu54ugbYhGzVdzfkU/21Nto= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=2eaWJvz7; 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="2eaWJvz7" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E54891F000FF; Tue, 6 Oct 2026 10:27:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1791282472; bh=WRJsjw8tBD7dcN8PIc6+GZb0Y2xjNtjvX/naEfXf1a4=; h=From:To:Cc:Subject:Date:Reply-To; b=2eaWJvz70bC7ir4FX1bXoHPffYQmuzJCQnccLTGmKAYZFyHJXEieoi/g+hm0wUydA o/nA5+3chnMP21wauKqcI84I95ovG6x/Pv/MWQkr8Q5o7ObrXFAcUA83BcFiSdXUrn bhh790//V4svfX978OLMqU2AMxm9UTiZr2C70ihI= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-98319: drm: Fix drm_pending_vblank_event leak in error path for out_fence_ptr Date: Tue, 6 Oct 2026 10:47:00 +0200 Message-ID: <2026100613-CVE-2026-98319-053d@gregkh> X-Mailer: git-send-email 2.56.0 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=3916; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=hlK7i5qfZ+WZ9D/pFv3Zp5ZX95rChrLKZXmr61QrImA=; b=owGbwMvMwCRo6H6F97bub03G02pJDFlHtkq6Cd3yY5/a9016jrD9otWuKlqlqhkypyd0TLBv3 hb6UCS5I5aFQZCJQVZMkeXLNp6j+ysOKXoZ2p6GmcPKBDKEgYtTACayQ5xhwUbdmXWs2uxNpgm3 OgNaenaVND/VYZjvrtFxfOUF3T93rt7Lmb6O7/OBOzJOAA== 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: Fix drm_pending_vblank_event leak in error path for out_fence_ptr When an out_fence_ptr is provided but DRM_MODE_PAGE_FLIP_EVENT is not set, a drm_pending_vblank_event will be allocated. If later, there is an allocation failure or another failure at setup_out_fence(), that event will not have base.fence set and it will not be released at complete_signaling(). Release the event and set crtc_state->event to NULL just like in the DRM_MODE_PAGE_FLIP_EVENT case when there is a failure at drm_event_reserve_init(). That is, prepare_signaling() releases the event and there is nothing to be done at complete_signaling(). Use drm_event_cancel_free() as that will also undo drm_event_reserve_init() in case it has been called. The Linux kernel CVE team has assigned CVE-2026-98319 to this issue. Affected and fixed versions =========================== Issue introduced in 4.10 with commit 92c715fca907686f5298220ece53423e38ba3aed and fixed in 5.10.271 with commit 3d6576ed3de01e8a378397b7020e33ae3d40aa6c Issue introduced in 4.10 with commit 92c715fca907686f5298220ece53423e38ba3aed and fixed in 5.15.222 with commit 86c33f740aa27e9cdc1259f0cc59c9c58f545e4b Issue introduced in 4.10 with commit 92c715fca907686f5298220ece53423e38ba3aed and fixed in 6.1.189 with commit 88c450e23b8fd4f1dcd329562f5e81ef05f3d941 Issue introduced in 4.10 with commit 92c715fca907686f5298220ece53423e38ba3aed and fixed in 6.6.158 with commit 780716e2e019186fa6e5aad097a44b87b0b5388f Issue introduced in 4.10 with commit 92c715fca907686f5298220ece53423e38ba3aed and fixed in 6.12.112 with commit d0be0516b5224eb5b6f42f8564a8deadb20ae16b Issue introduced in 4.10 with commit 92c715fca907686f5298220ece53423e38ba3aed and fixed in 6.18.54 with commit daefd7ff159b0d1fb8c9e64430dcbe2aca1bdd09 Issue introduced in 4.10 with commit 92c715fca907686f5298220ece53423e38ba3aed and fixed in 7.2.8 with commit b9a68a9ccaada15d8dd0102c188cc6b868ff800b Issue introduced in 4.10 with commit 92c715fca907686f5298220ece53423e38ba3aed and fixed in 7.3-rc4 with commit 9eb1a393c89a79c4210230d23e7d88d239c61d7b Issue introduced in 4.9.10 with commit 4cd462c7f2b6fcc208aebf44f2c831681feaa925 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-2026-98319 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/drm_atomic_uapi.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/3d6576ed3de01e8a378397b7020e33ae3d40aa6c https://git.kernel.org/stable/c/86c33f740aa27e9cdc1259f0cc59c9c58f545e4b https://git.kernel.org/stable/c/88c450e23b8fd4f1dcd329562f5e81ef05f3d941 https://git.kernel.org/stable/c/780716e2e019186fa6e5aad097a44b87b0b5388f https://git.kernel.org/stable/c/d0be0516b5224eb5b6f42f8564a8deadb20ae16b https://git.kernel.org/stable/c/daefd7ff159b0d1fb8c9e64430dcbe2aca1bdd09 https://git.kernel.org/stable/c/b9a68a9ccaada15d8dd0102c188cc6b868ff800b https://git.kernel.org/stable/c/9eb1a393c89a79c4210230d23e7d88d239c61d7b