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 A58FA3EDADB for ; Fri, 8 May 2026 14:22:44 +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=1778250164; cv=none; b=SSUysbn1YdGtYhpqzRuQnCpE5VPwPAurFc+IRrvkAvVog2ra+oHFx/EfvUVQba7JHx4SoXNFr/XxVBeuD+yJAHLNjcMU7ntLmT1HDzqJ7fNJ/ZyYDEyP+zV7ksbTB1MTo+5DgXSyDuxfqpo8yepVQFi2z6o+IoDqjmUMpken48w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778250164; c=relaxed/simple; bh=ScW42vPKq15f4/Wj+idjL6I5GYxD0bqdnLeWUc/ch+Y=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=HEmaBtQqAePS1tSGdrVO7MDW+UkJgca7rB4TedUbfpB9MpCRO28YICPszM2rffqRaoc8MxhVIq7a0AweOdFDO2K304spHGNRwIDV/6ngHN0c11xLvAyxoJlm0s6vNCujN9RG6zrdLxCNsDbyEtaBSDCYkM/std44KGY6xrXf0/A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=ViaXLHTN; 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="ViaXLHTN" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0CCDBC2BCB0; Fri, 8 May 2026 14:22:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1778250164; bh=ScW42vPKq15f4/Wj+idjL6I5GYxD0bqdnLeWUc/ch+Y=; h=From:To:Cc:Subject:Date:Reply-To:From; b=ViaXLHTNCdeJbMeQB4CXRmR0qCcyCTIIs0qmyQwaV+A022Pt7XMhY3m/qopmd0IKl 8o1ZmAadBUPcb8v04iI2EFCz/Dsq8XpQNv2BiZchiLTOl/uCwQwzIlsr6WFXIaM25z tHH85SJDxvHpELoPAUd66y48zlP4V8Z6hjBSD94k= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-43369: drm/amd: Fix NULL pointer dereference in device cleanup Date: Fri, 8 May 2026 16:21:38 +0200 Message-ID: <2026050829-CVE-2026-43369-60b9@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=2506; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=ubqahWr6lr83tjeFMoXDhPpd8eoAOb5B0gy74WrGZBQ=; b=owGbwMvMwCRo6H6F97bub03G02pJDJl/P2aumXDvwrXS9W1sdQ2Njf5q/Pd03Ks43f21373VT xVeva+hI5aFQZCJQVZMkeXLNp6j+ysOKXoZ2p6GmcPKBDKEgYtTACaS4M+woGf27mcBC4U4dt16 7mS7cokWt2LhEYYFK7omq7CvZew+8/7YDUkxNclpAeKJAA== 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/amd: Fix NULL pointer dereference in device cleanup When GPU initialization fails due to an unsupported HW block IP blocks may have a NULL version pointer. During cleanup in amdgpu_device_fini_hw, the code calls amdgpu_device_set_pg_state and amdgpu_device_set_cg_state which iterate over all IP blocks and access adev->ip_blocks[i].version without NULL checks, leading to a kernel NULL pointer dereference. Add NULL checks for adev->ip_blocks[i].version in both amdgpu_device_set_cg_state and amdgpu_device_set_pg_state to prevent dereferencing NULL pointers during GPU teardown when initialization has failed. (cherry picked from commit b7ac77468cda92eecae560b05f62f997a12fe2f2) The Linux kernel CVE team has assigned CVE-2026-43369 to this issue. Affected and fixed versions =========================== Issue introduced in 6.18.16 with commit fc58ef30e0a1524ce72a8e873d773ba3b0830c7d and fixed in 6.18.19 with commit 43025c941aced9a9009f9ff20eea4eb78c61deb8 Issue introduced in 6.19.6 with commit 6d7ac4a0ebb6b7bc885274aa8b2bd9971f07013c and fixed in 6.19.9 with commit 767cd24d3c4ae847688877def4891943f6611ecd 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-2026-43369 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_device.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/43025c941aced9a9009f9ff20eea4eb78c61deb8 https://git.kernel.org/stable/c/767cd24d3c4ae847688877def4891943f6611ecd https://git.kernel.org/stable/c/062ea905fff7756b2e87143ffccaece5cdb44267