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 849CE218AB5 for ; Wed, 26 Feb 2025 02:15:03 +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=1740536103; cv=none; b=WTdPuSFsUtC8wXAK1Ui6N2UO8j85MtUIyymOL75oTDPS3uBNEZf2RJ9eawNIvoR4chhXGNxx2GP2UVT80MgHZpah14zCutkRu97BtIEGKNL1cj/NBZ2nL8K8tInMqUEHfBXmco0t9cWvBkmUrY/TDxsZisOYY9O0358wqkXEraw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740536103; c=relaxed/simple; bh=12HW8+riSdhMjWSahYF1bItLmxgBvw2AZWENMlxMHSE=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=qUWzqWNbC2ogmjyuq5wZvHzqzFu1C/8Ju1qqO8LmZUCiZ3XssopSd8P8QpcanQ5F/i4v3kn7/58a8+HvbW4AlUWeHfgNhAvw6IeT4es2s2Y8hGkPtoU7YK5BbBbx/Mi2oSVJYmiH9eKN+v2FYCsUmHE1kavZj1euAbqYH8OsW+Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=g4KZaXfG; 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="g4KZaXfG" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5B90DC4CEDD; Wed, 26 Feb 2025 02:15:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1740536103; bh=12HW8+riSdhMjWSahYF1bItLmxgBvw2AZWENMlxMHSE=; h=From:To:Cc:Subject:Date:Reply-to:From; b=g4KZaXfGqVMhkfrZGvSYzreBl/yt2onTAE6ZipfCc+Xb6B+YaBBkmT6okBRZgjIPM T1VE/HfDqACMGEryq/ymd5zgSF1/BdSaEckN1uudRihdKdQnk+poIIBLEwH2h0KWlk nPHsGx6WBmAxIiE+Fxk1k4Sa/pLla9G1PgRhFqw8= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2022-49497: net: remove two BUG() from skb_checksum_help() Date: Wed, 26 Feb 2025 03:12:51 +0100 Message-ID: <2025022607-CVE-2022-49497-bfc0@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=2329; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=12HW8+riSdhMjWSahYF1bItLmxgBvw2AZWENMlxMHSE=; b=owGbwMvMwCRo6H6F97bub03G02pJDOn7yv9/91kuXsl9xC/QyTs9KbaCXWg548ZDNhM35e/1+ rPI4o9lRywLgyATg6yYIsuXbTxH91ccUvQytD0NM4eVCWQIAxenAExkYxnDfH/Ly02us1ijA/a3 PMxyeVjIz7JzAsOCk3UTb5/kYGG7Wj5FxSznSFpxSsccAA== 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: remove two BUG() from skb_checksum_help() I have a syzbot report that managed to get a crash in skb_checksum_help() If syzbot can trigger these BUG(), it makes sense to replace them with more friendly WARN_ON_ONCE() since skb_checksum_help() can instead return an error code. Note that syzbot will still crash there, until real bug is fixed. The Linux kernel CVE team has assigned CVE-2022-49497 to this issue. Affected and fixed versions =========================== Fixed in 5.10.121 with commit 312c43e98ed190bd8fd7a71a0addf9539d5b8ab1 Fixed in 5.15.46 with commit 6320ae1b5876c30bf98203b6a5abe8b5c45e6a04 Fixed in 5.17.14 with commit d5281245f3502e960cb6b89348767b935379cee3 Fixed in 5.18.3 with commit b1320c9a4d30ff54b824a8ad6036e0b5fb4c5e73 Fixed in 5.19 with commit d7ea0d9df2a6265b2b180d17ebc64b38105968fc 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-2022-49497 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/core/dev.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/312c43e98ed190bd8fd7a71a0addf9539d5b8ab1 https://git.kernel.org/stable/c/6320ae1b5876c30bf98203b6a5abe8b5c45e6a04 https://git.kernel.org/stable/c/d5281245f3502e960cb6b89348767b935379cee3 https://git.kernel.org/stable/c/b1320c9a4d30ff54b824a8ad6036e0b5fb4c5e73 https://git.kernel.org/stable/c/d7ea0d9df2a6265b2b180d17ebc64b38105968fc