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 6DF45142E9F for ; Tue, 21 May 2024 15:06:14 +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=1716303974; cv=none; b=az4FATbLj8bzAxs2wnCGJEwlLqbd0KfytZB5ZHXIhh/e4slfUxCvM7veXLHrXde9ow22BgLTjchvz7sUfD1nV2Yhx2oDD8yhoqi3y1Y8bEy/nV16Udrwjn7III3Ajr+3qa7x1Dz5rfF6YgVymaRvSHlBtlo6njR8od5MPMvsg1Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716303974; c=relaxed/simple; bh=OXDRz1rQIuTBojdjWTdebhRl58VWiFOgWthSm9+zhP0=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=XQosGGdifErFX//kHRx+RHErcMZ4YmyfZ3tzQbxhzmWkvzA4aNYmIn0b0JaMq4B6G1vYVm3mgcg6XgLF/NusX1R3Y96Es+5EBTTxBp+6RN8PHfUzMRooCc1m/NzQs7Bq5ymDO7NfPHAYrQuVzpQMDOVzqJ3WXX4vgB/ByNRcynU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=ogU0mcEa; 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="ogU0mcEa" Received: by smtp.kernel.org (Postfix) with ESMTPSA id EBF52C2BD11; Tue, 21 May 2024 15:06:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1716303974; bh=OXDRz1rQIuTBojdjWTdebhRl58VWiFOgWthSm9+zhP0=; h=From:To:Cc:Subject:Date:Reply-to:From; b=ogU0mcEaIjLVnza/e+E3q9HJBO1kP5nl9Ja8HC0VfjLYIsK6VwmhgOjBLKlbTs4NJ nxUb5JPl5+TjFvj46q5z5UvddmANXLK/iTlGJHdtbiGGjEHVBmeF4s72ED7uluuxnE 9nZn5bqBM8ZcmQUh1lsgItVNvGh5vaZJTS9wNeF0= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2021-47372: net: macb: fix use after free on rmmod Date: Tue, 21 May 2024 17:03:49 +0200 Message-ID: <2024052140-CVE-2021-47372-ecc4@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=2407; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=OXDRz1rQIuTBojdjWTdebhRl58VWiFOgWthSm9+zhP0=; b=owGbwMvMwCRo6H6F97bub03G02pJDGk+28/Y7hd7Pv/OE/c94oVnviadDqqYz3fuklLVojnxu 380NJy52BHLwiDIxCArpsjyZRvP0f0VhxS9DG1Pw8xhZQIZwsDFKQATuT6dYb7j7By3A1orzE9U LlvF/T1tiveZF+cZ5qkprAt78sk40dDG6efb2a5Hdpn+OQAA 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: macb: fix use after free on rmmod plat_dev->dev->platform_data is released by platform_device_unregister(), use of pclk and hclk is a use-after-free. Since device unregister won't need a clk device we adjust the function call sequence to fix this issue. [ 31.261225] BUG: KASAN: use-after-free in macb_remove+0x77/0xc6 [macb_pci] [ 31.275563] Freed by task 306: [ 30.276782] platform_device_release+0x25/0x80 The Linux kernel CVE team has assigned CVE-2021-47372 to this issue. Affected and fixed versions =========================== Fixed in 4.14.249 with commit a7d521cc726f Fixed in 4.19.209 with commit 46670fb832ee Fixed in 5.4.150 with commit 1da750d1e214 Fixed in 5.10.70 with commit 7721221e87d2 Fixed in 5.14.9 with commit 4ad6f2d23b0f Fixed in 5.15 with commit d82d5303c4c5 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-2021-47372 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/net/ethernet/cadence/macb_pci.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/a7d521cc726f30b8e679a6f36d04b18a8ab3c536 https://git.kernel.org/stable/c/46670fb832ee80943715df618632ca13c2e96f2b https://git.kernel.org/stable/c/1da750d1e2140ef43d64d17f301ff6f41b45541e https://git.kernel.org/stable/c/7721221e87d25c9840d9ca6b986dbdc410d5ce2b https://git.kernel.org/stable/c/4ad6f2d23b0f6ac0d3e5f3102a4256d1c86c90f5 https://git.kernel.org/stable/c/d82d5303c4c539db86588ffb5dc5b26c3f1513e8