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 C94BC43E488 for ; Thu, 3 Sep 2026 08:27:31 +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=1788424055; cv=none; b=NGN5YFPZxO9FkJs6+iI/RNhBiO/tjKoTjUwLYkwZRL/B1SuSEoS2WQNxGNpE5otU+H6LmbuZAHCGiNl7tQGRf02dmkMZpUL/jf36rEKs9BoYMO3f9x9kTxGCOP5FHw9FGKQJY+LLBPQopTupexkLB5JVU2bGTExfcOh8QK+SJvg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788424055; c=relaxed/simple; bh=vdBUhNLFvH3OpODLBd7Ny5rl1+M3Z8OY/vMBfQcQFVY=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=i1eQjCYay+YILKozoqqm+ven3u2gSsbFb1eTsIvJZxsPLCpHarCFELjKSanQGz+0S+iYzHuLF0OEqUqYZIkFZInZp8xkyEQsSjpbC8CBqr5pyHsidNRZfyJOtJ+N1SJeTiJteSrlkhxbpt0jMrNORDNFCNSXl2/41BjZuB4Y9ko= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=aECQFyuH; 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="aECQFyuH" Received: by smtp.kernel.org (Postfix) with ESMTPSA id EAB4E1F000E9; Thu, 3 Sep 2026 08:27:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1788424051; bh=U75OZ2UxquwaPW77mbh6MwXjp4r7liWug1t55596Q3s=; h=From:To:Cc:Subject:Date:Reply-To; b=aECQFyuHVxP7/BRjUxisab1+QeYmOoB1qBb2Sp0C7y9g/miTuPREwHqVKHHAYp89W sq5zLYfVFpFtSNurpxKwnhVPgWToebdWyp4Tw4YZJn2Ny3xtw4mUnNsdnIx0YZdv5l vHBQ24aQJKOEG5WQQbXPkipOEVNGY4JiBgPpSigs= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-80747: drm/amdkfd: Add bounds check for CRAT subtype length Date: Thu, 3 Sep 2026 10:26:44 +0200 Message-ID: <2026090338-CVE-2026-80747-92d6@gregkh> X-Mailer: git-send-email 2.55.0 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=2089; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=dK+WrfZLfSPuIHFH2UdSqJTj+qJCGbwNqz3hR4O9Bj4=; b=owGbwMvMwCRo6H6F97bub03G02pJDFkz9e3WzjG/s8HkuN+nws+tTtlZAY0pi1SkE8y2Oygf6 +qtexzYEcvCIMjEICumyPJlG8/R/RWHFL0MbU/DzGFlAhnCwMUpABOpOcOw4MDW5z9/KOUfCra+ 63ogOaRx3ukdoQzzDJgsL/58mXvdL79NyTruo7dGbucnAA== 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/amdkfd: Add bounds check for CRAT subtype length The CRAT parser validates that the subtype header fits within the image, but does not verify that the advertised subtype length fits. A malformed CRAT table with an oversized length field causes out-of-bounds reads when kfd_parse_subtype() casts the header to specific subtype structures. Add validation that sub_type_hdr + length does not exceed the image boundary before parsing the subtype contents. (cherry picked from commit 48e1d1e6e8798aef0312e68d8e586021b5b3cf4d) The Linux kernel CVE team has assigned CVE-2026-80747 to this issue. Affected and fixed versions =========================== Fixed in 7.1.10 with commit ca91e0cc8087568e4b791648a7c01e804f48cb73 Fixed in 7.2 with commit 6e7566ba4739dd573c331adde1c96690f7a567bd 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-2026-80747 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/amdkfd/kfd_crat.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/ca91e0cc8087568e4b791648a7c01e804f48cb73 https://git.kernel.org/stable/c/6e7566ba4739dd573c331adde1c96690f7a567bd