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 BF5C21CDA2E for ; Thu, 27 Feb 2025 02:19:16 +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=1740622756; cv=none; b=Td4eYl6BNh1uRMzQs/SlpEp5YiRjDeRO7hZxnL0NuE5hfpWsNwCXCwTZYAf7X4J4uQ4HX5+M/tLdsdwwQ/0+Xp4qXv0o99OuEXiUkEyLyDBaTqBJWOvaQLdCdwd7YX7FNV+wlIKy8oRsQWLJNOq2jVIO5bQMoPRTNnEvVl59XbU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740622756; c=relaxed/simple; bh=g3EQ4ovQqtwotMOE11Atkyuj27e06fiD0YZ9fxzHbnU=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=fyExxHYsS8AXc2zaxKRWa5P9mBokWcmwAYzKn7g2HPVIvUrLXTr7n79uBQNeHnYzfVP6TlY+tr1Lkl3+8yyBgjoUxnstsGcniwR8yF6lk+vnMH9ftKtrHxQK3ap7DUj4UPjaEc3RPONd0/HC2BgCgm2XFjxtMa6gpRUhXE7HqZo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=NAtKPc/m; 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="NAtKPc/m" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 91674C4CEE2; Thu, 27 Feb 2025 02:19:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1740622756; bh=g3EQ4ovQqtwotMOE11Atkyuj27e06fiD0YZ9fxzHbnU=; h=From:To:Cc:Subject:Date:Reply-to:From; b=NAtKPc/mMN64YIKfVqKVi55vsY4h56ERUYMLH2ZDKWuv4BE1dV6GcAr2p/fEha4UG +8U5pqZh0fNJN/hdwysUn6GXAGmunkrs7q7m+/8B+yxTtg++Z2XGVsIrpBbc7kWHl5 pau+MLhCYmVfxkmwHy+dBn8DIhBIfbptcBg05Fkc= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2025-21787: team: better TEAM_OPTION_TYPE_STRING validation Date: Wed, 26 Feb 2025 18:17:43 -0800 Message-ID: <2025022608-CVE-2025-21787-c4f2@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=4299; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=g3EQ4ovQqtwotMOE11Atkyuj27e06fiD0YZ9fxzHbnU=; b=owGbwMvMwCRo6H6F97bub03G02pJDOn7T6skxJlGd1y57rUydcGvpZbMag9kT31ZcnziIqdbr /bs5Qx43RHLwiDIxCArpsjyZRvP0f0VhxS9DG1Pw8xhZQIZwsDFKQATeeXAME/h/fp/XcYyL58c f53dsDfwVd57awuGBe2Ff6sK8iXe3jzrcO6j2e2utvV2NwE= 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: team: better TEAM_OPTION_TYPE_STRING validation syzbot reported following splat [1] Make sure user-provided data contains one nul byte. [1] BUG: KMSAN: uninit-value in string_nocheck lib/vsprintf.c:633 [inline] BUG: KMSAN: uninit-value in string+0x3ec/0x5f0 lib/vsprintf.c:714 string_nocheck lib/vsprintf.c:633 [inline] string+0x3ec/0x5f0 lib/vsprintf.c:714 vsnprintf+0xa5d/0x1960 lib/vsprintf.c:2843 __request_module+0x252/0x9f0 kernel/module/kmod.c:149 team_mode_get drivers/net/team/team_core.c:480 [inline] team_change_mode drivers/net/team/team_core.c:607 [inline] team_mode_option_set+0x437/0x970 drivers/net/team/team_core.c:1401 team_option_set drivers/net/team/team_core.c:375 [inline] team_nl_options_set_doit+0x1339/0x1f90 drivers/net/team/team_core.c:2662 genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline] genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0x1214/0x12c0 net/netlink/genetlink.c:1210 netlink_rcv_skb+0x375/0x650 net/netlink/af_netlink.c:2543 genl_rcv+0x40/0x60 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1322 [inline] netlink_unicast+0xf52/0x1260 net/netlink/af_netlink.c:1348 netlink_sendmsg+0x10da/0x11e0 net/netlink/af_netlink.c:1892 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg+0x30f/0x380 net/socket.c:733 ____sys_sendmsg+0x877/0xb60 net/socket.c:2573 ___sys_sendmsg+0x28d/0x3c0 net/socket.c:2627 __sys_sendmsg net/socket.c:2659 [inline] __do_sys_sendmsg net/socket.c:2664 [inline] __se_sys_sendmsg net/socket.c:2662 [inline] __x64_sys_sendmsg+0x212/0x3c0 net/socket.c:2662 x64_sys_call+0x2ed6/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:47 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f The Linux kernel CVE team has assigned CVE-2025-21787 to this issue. Affected and fixed versions =========================== Issue introduced in 3.3 with commit 3d249d4ca7d0ed6629a135ea1ea21c72286c0d80 and fixed in 6.1.129 with commit 4512482e4805dd30bc77dec511f2a2edba5cb868 Issue introduced in 3.3 with commit 3d249d4ca7d0ed6629a135ea1ea21c72286c0d80 and fixed in 6.6.79 with commit d071a91fa614ecdf760c29f61f6a7bfb7df796d6 Issue introduced in 3.3 with commit 3d249d4ca7d0ed6629a135ea1ea21c72286c0d80 and fixed in 6.12.16 with commit 4236bf4716589558cc0f3c3612642b2c2141b04e Issue introduced in 3.3 with commit 3d249d4ca7d0ed6629a135ea1ea21c72286c0d80 and fixed in 6.13.4 with commit 8401cade1918281177974b32c925afdce750d292 Issue introduced in 3.3 with commit 3d249d4ca7d0ed6629a135ea1ea21c72286c0d80 and fixed in 6.14-rc3 with commit 5bef3ac184b5626ea62385d6b82a1992b89d7940 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-2025-21787 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/team/team_core.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/4512482e4805dd30bc77dec511f2a2edba5cb868 https://git.kernel.org/stable/c/d071a91fa614ecdf760c29f61f6a7bfb7df796d6 https://git.kernel.org/stable/c/4236bf4716589558cc0f3c3612642b2c2141b04e https://git.kernel.org/stable/c/8401cade1918281177974b32c925afdce750d292 https://git.kernel.org/stable/c/5bef3ac184b5626ea62385d6b82a1992b89d7940