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 3D2E11D54A for ; Wed, 19 Jun 2024 14:58:24 +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=1718809104; cv=none; b=fBNuW08J3wM44O1LCLVcHNGX7iBpIJ3gV01Ud1eLmJKAblA5qvKQLsCAQqLi88qn8AVvA8zP1vMKacYlgQbcXYpQJFyt94gikU0awm1pf/doy4YEUHsFgTgl5dHxVw6Xk0f4TmsTytj2Oe8R8p0qMmAwAEJIVLLDphMjsIQUS0M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718809104; c=relaxed/simple; bh=Vhx1NHDI8ZEh5jgoMTsK6Q/wYaf3/Oe2yspuXWRWm0w=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=FkP8UFYU1E5R6QQSmB9tCW5D3MZzv0tr9vWMPdDfER+3Q/Hpym7GV+G3driLlPzKkvmgcvisRUP5f3s31jKtS8cWNFF1d48ZqMRrlOYgeXmSqvh/SKDior5E4gCWe9ZlVb81YfwUOmIBz4E8JaoTzBgwvinbZ53yxwcb2caZieo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=eObvTcSQ; 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="eObvTcSQ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B875EC2BBFC; Wed, 19 Jun 2024 14:58:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1718809104; bh=Vhx1NHDI8ZEh5jgoMTsK6Q/wYaf3/Oe2yspuXWRWm0w=; h=From:To:Cc:Subject:Date:Reply-to:From; b=eObvTcSQk4Kzr4jKJhYbENZFEjs4DDjl9MDfjbZ8nUcuO52smMmLxiO0Pb2tewAJ7 rNqpgXa7dCtInSqaQu/aPM39aBtNmSVG6liG8t8HMTyF2UCn4WV6ZSEFyFNS3+co+X HGgLn+ptQ/DTEJyvyAR+ZH88t+XQB9L9xEe3ruqM= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2021-47612: nfc: fix segfault in nfc_genl_dump_devices_done Date: Wed, 19 Jun 2024 16:58:11 +0200 Message-ID: <2024061908-CVE-2021-47612-1c98@gregkh> X-Mailer: git-send-email 2.45.2 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=3009; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=Vhx1NHDI8ZEh5jgoMTsK6Q/wYaf3/Oe2yspuXWRWm0w=; b=owGbwMvMwCRo6H6F97bub03G02pJDGlFnxiu+my7Z8vz+8G9XSuC3WN+/L51at/HrTHbvRece 5AmdK5BtyOWhUGQiUFWTJHlyzaeo/srDil6GdqehpnDygQyhIGLUwAmsm0Jw4LGy++M915d/4Xr dqG1z/pDhRyK78QZ5ucIKvn2VXMxHe6N+JL9u0pumc0ncQA= 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: nfc: fix segfault in nfc_genl_dump_devices_done When kmalloc in nfc_genl_dump_devices() fails then nfc_genl_dump_devices_done() segfaults as below KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 0 PID: 25 Comm: kworker/0:1 Not tainted 5.16.0-rc4-01180-g2a987e65025e-dirty #5 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-6.fc35 04/01/2014 Workqueue: events netlink_sock_destruct_work RIP: 0010:klist_iter_exit+0x26/0x80 Call Trace: class_dev_iter_exit+0x15/0x20 nfc_genl_dump_devices_done+0x3b/0x50 genl_lock_done+0x84/0xd0 netlink_sock_destruct+0x8f/0x270 __sk_destruct+0x64/0x3b0 sk_destruct+0xa8/0xd0 __sk_free+0x2e8/0x3d0 sk_free+0x51/0x90 netlink_sock_destruct_work+0x1c/0x20 process_one_work+0x411/0x710 worker_thread+0x6fd/0xa80 The Linux kernel CVE team has assigned CVE-2021-47612 to this issue. Affected and fixed versions =========================== Fixed in 4.4.296 with commit ea55b3797878 Fixed in 4.9.294 with commit 214af18abbe3 Fixed in 4.14.259 with commit 664498964284 Fixed in 4.19.222 with commit 2a8845b9603c Fixed in 5.4.167 with commit d731ecc6f2ea Fixed in 5.10.87 with commit c602863ad28e Fixed in 5.15.10 with commit d89e4211b517 Fixed in 5.16 with commit fd79a0cbf0b2 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-2021-47612 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/nfc/netlink.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/ea55b3797878752aa076b118afb727dcf79cac34 https://git.kernel.org/stable/c/214af18abbe39db05beb305b2d11e87d09a6529c https://git.kernel.org/stable/c/6644989642844de830f9b072cd65c553cb55946c https://git.kernel.org/stable/c/2a8845b9603c545fddd17862282dc4c4ce0971e3 https://git.kernel.org/stable/c/d731ecc6f2eaec68f4ad1542283bbc7d07bd0112 https://git.kernel.org/stable/c/c602863ad28ec86794cb4ab4edea5324f555f181 https://git.kernel.org/stable/c/d89e4211b51752daf063d638af50abed2fd5f96d https://git.kernel.org/stable/c/fd79a0cbf0b2e34bcc45b13acf962e2032a82203