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 B337F1448DC for ; Tue, 21 May 2024 15:26:12 +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=1716305172; cv=none; b=oZYsOpW58NU+EhG+tHXbhpGNq9oLDVrv37UfNTJwDbw459hqhQONlRX7jNMMJYnAtoiWSHKu/AzZOFbHOVqaHGCJqrbUtK/pFiep+g/jkrYz0x5AvoV+y2nfSCzoodyFg6at7TocvTVGJRRswTbenVyEQQgQjttk3WNmEcKznBU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716305172; c=relaxed/simple; bh=op9spL6yCch0zd9ncisqfb90eJo7zdAZl776wkEdg/A=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=KL0/QY8hjJVUSapQLSl4epzC/k8M1+5WopzLzYUp0kv7nMW55VoctiQBGAmSzIo7/stASDdTzr1OY6V0LVi0c3PjMpDu1AFWbXzNFJvzBZGtNsguc6aDH1GfGqzeFNy2Sc/Hs5zpAtJ6SqnOCQD6gudRuCCJlYVHEYgMoIwTqc4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=TyjJLJH3; 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="TyjJLJH3" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3BB1AC32789; Tue, 21 May 2024 15:26:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1716305172; bh=op9spL6yCch0zd9ncisqfb90eJo7zdAZl776wkEdg/A=; h=From:To:Cc:Subject:Date:Reply-to:From; b=TyjJLJH3E+MrhNAh5gBJ49g0Y0f0nFO2GebnLMXcG1I/vnF+KCA5M9o8oV3FJKLnH ujETMjZe+j+oxTJZiJB0lMmVDL9uvqMUx1TGqDOT8tTIx7Z7Pd72y6tTNtrBZK8jV0 fqBw71v/LJ1S2Qm9bGqc+cR+30HqWXLRmRCrurtw= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2023-52734: net: sched: sch: Bounds check priority Date: Tue, 21 May 2024 17:23:11 +0200 Message-ID: <2024052100-CVE-2023-52734-c8c2@gregkh> X-Mailer: git-send-email 2.45.1 Precedence: bulk X-Mailing-List: linux-cve-announce@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Reply-to: , X-Developer-Signature: v=1; a=openpgp-sha256; l=2544; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=op9spL6yCch0zd9ncisqfb90eJo7zdAZl776wkEdg/A=; b=owGbwMvMwCRo6H6F97bub03G02pJDGk+e0KyJA/FLsu7w/ZJZvrWwvvaS34fz/9QsHO3wvTc4 k89HNFrO2JZGASZGGTFFFm+bOM5ur/ikKKXoe1pmDmsTCBDGLg4BWAiB3QYFhxcvDl1FRe7ypoN a3a5vb/ty3W79CfD/DxWUZcThznFBBYm/kx4FF5w3aRIAgA= X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Content-Transfer-Encoding: 8bit Description =========== In the Linux kernel, the following vulnerability has been resolved: net: sched: sch: Bounds check priority Nothing was explicitly bounds checking the priority index used to access clpriop[]. WARN and bail out early if it's pathological. Seen with GCC 13: ../net/sched/sch_htb.c: In function 'htb_activate_prios': ../net/sched/sch_htb.c:437:44: warning: array subscript [0, 31] is outside array bounds of 'struct htb_prio[8]' [-Warray-bounds=] 437 | if (p->inner.clprio[prio].feed.rb_node) | ~~~~~~~~~~~~~~~^~~~~~ ../net/sched/sch_htb.c:131:41: note: while referencing 'clprio' 131 | struct htb_prio clprio[TC_HTB_NUMPRIO]; | ^~~~~~ The Linux kernel CVE team has assigned CVE-2023-52734 to this issue. Affected and fixed versions =========================== Fixed in 5.4.232 with commit fbe71c5dacaa Fixed in 5.10.169 with commit 90fcf55d83b2 Fixed in 5.15.95 with commit 99875ea9b5b4 Fixed in 6.1.13 with commit f6415c9c9a0b Fixed in 6.2 with commit de5ca4c3852f 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-2023-52734 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: net/sched/sch_htb.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/fbe71c5dacaa5a9960323215f118958174c81aa0 https://git.kernel.org/stable/c/90fcf55d83b20da1091f926a291af05fb74f61c6 https://git.kernel.org/stable/c/99875ea9b5b47995bfb3c684d21eb17feb4b7e6a https://git.kernel.org/stable/c/f6415c9c9a0b3881543d38528a58b54af4351522 https://git.kernel.org/stable/c/de5ca4c3852f896cacac2bf259597aab5e17d9e3