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 101D9E571 for ; Thu, 27 Feb 2025 02:18:53 +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=1740622734; cv=none; b=bFYmz3hcNIPvBe83au4iNjusfbFV78YOHUXoGD27UHwLiARJ3SLnuav3LPoUfB3wGHiSP/IcJLXz1kxyQRB3STH3asHez3WQE29ZJ5g6R//QS7oophRGmonF0osh0HGqhxlcNthUcriJBlNy2i5PhZgEaslPJy2AZMKn49xf7dU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740622734; c=relaxed/simple; bh=UJqfY03d1OBm23qOjDcKoJhlpH1jOu3sHWvJdKRBRck=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=kE4aghbsmOBpSHBezX/szpe0hZnPD7joMRjoaRqmaViOn2ujSNlDMviqdUXqqb0lUAw1AjfADp2EISE9GHgHvGI86DVv8FLDUMUFBKySUqVonoW00gimZ7+RrjwVb+09RwuF17p7WsZaath4++Ezhqt33HldZ9YWJYEaL7+bk98= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=lNNbn3uh; 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="lNNbn3uh" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 80F34C4CED6; Thu, 27 Feb 2025 02:18:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1740622733; bh=UJqfY03d1OBm23qOjDcKoJhlpH1jOu3sHWvJdKRBRck=; h=From:To:Cc:Subject:Date:Reply-to:From; b=lNNbn3uh2YpjDM5nIX4O1uhtIH67P3VJuwm56sIUE1AjVwkspgrIPumar6KqIRSK+ ld2BlbTkS2Bn68G/9STPL5AWrMdFJEMwCYUZkp3pYqikckqqYXimyQMmo8aeBK4NYE jnk4O5WMb/nojnBAVNrP8jrZdIFnsNE6KMg/QAwc= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2025-21773: can: etas_es58x: fix potential NULL pointer dereference on udev->serial Date: Wed, 26 Feb 2025 18:17:29 -0800 Message-ID: <2025022606-CVE-2025-21773-2ee7@gregkh> X-Mailer: git-send-email 2.48.1 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=2573; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=UJqfY03d1OBm23qOjDcKoJhlpH1jOu3sHWvJdKRBRck=; b=owGbwMvMwCRo6H6F97bub03G02pJDOn7TyvFvZtV1xi87Ng8x2tcL/kTt25gfvM98obmFHFe9 bDX63l3d8SyMAgyMciKKbJ82cZzdH/FIUUvQ9vTMHNYmUCGMHBxCsBE/I4zLJixQoLdkWt63B8r 4Tizm3yZ99U3uzEsWFF5cCmz/AW9t/yST4KrPPXn8swyBAA= 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: can: etas_es58x: fix potential NULL pointer dereference on udev->serial The driver assumed that es58x_dev->udev->serial could never be NULL. While this is true on commercially available devices, an attacker could spoof the device identity providing a NULL USB serial number. That would trigger a NULL pointer dereference. Add a check on es58x_dev->udev->serial before accessing it. The Linux kernel CVE team has assigned CVE-2025-21773 to this issue. Affected and fixed versions =========================== Issue introduced in 6.2 with commit 9f06631c3f1f0f298536443df85a6837ba4c5f5c and fixed in 6.6.79 with commit 1590667a60753ee5a54871f2840ceefd4a7831fa Issue introduced in 6.2 with commit 9f06631c3f1f0f298536443df85a6837ba4c5f5c and fixed in 6.12.16 with commit 722e8e1219c8b6ac2865011fe339315d6a8d0721 Issue introduced in 6.2 with commit 9f06631c3f1f0f298536443df85a6837ba4c5f5c and fixed in 6.13.4 with commit 5059ea98d7bc133903d3e47ab36df6ed11d0c95f Issue introduced in 6.2 with commit 9f06631c3f1f0f298536443df85a6837ba4c5f5c and fixed in 6.14-rc3 with commit a1ad2109ce41c9e3912dadd07ad8a9c640064ffb 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-2025-21773 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/can/usb/etas_es58x/es58x_devlink.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/1590667a60753ee5a54871f2840ceefd4a7831fa https://git.kernel.org/stable/c/722e8e1219c8b6ac2865011fe339315d6a8d0721 https://git.kernel.org/stable/c/5059ea98d7bc133903d3e47ab36df6ed11d0c95f https://git.kernel.org/stable/c/a1ad2109ce41c9e3912dadd07ad8a9c640064ffb