From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f200.google.com (mail-il1-f200.google.com [209.85.166.200]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id ECFE712DD9A for ; Mon, 26 Feb 2024 16:28:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.200 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708964900; cv=none; b=L7AFlbAsc+yPPtqZJwWkArqJMIaOBjPBGOGTRVnevw4yotFtNixQd+ntMvO/wFoCGHQTiDrkXEkIx6pVbo5yoy/9Z56+DUaah6wTq5YfAxzFD5WXvyWD8xn2NP0YqaWPZ8Ci3tlGPVkvRPoKAYak9k/6B/5bK2l1QlWW/KIsamw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708964900; c=relaxed/simple; bh=PBvLSkJ0RlMNhxfai6oORd1LycycMbzbxT3QXcIUt7o=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=VfjJc84orVcyfritSH0zwdWXOV2+JjkGy/fw3k1SCyUFgOeoe5+Dx1NMeGUz6ZnxeTlQ0UH+bus6hFBJ0gImRYCXiNFB8rShI5mTC1a6lUjb7BYrCSG/4KITdhhQOVxRwG3EbWGVSYCB8iDI0TID8guVZr8YtOe/yewqeZewBuY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.200 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f200.google.com with SMTP id e9e14a558f8ab-3651f5a357bso22849205ab.3 for ; Mon, 26 Feb 2024 08:28:18 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1708964898; x=1709569698; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=GaFtmKz1ML1BUrUdmUz99JxEkS2YkyD21nhp0myYn3o=; b=gXeUEvJipn88AgxMT+u9DFA8iOoxpQ+RZgCHw8iJfs0JpXAcyQ+HmdzR2O1noQqrEZ 7wXsa4XFn7phI9oqZiyxF9vjcrAoYb/hdec+MxJsH4CCCL7KbAqPPbwFAxL8i6/OjNP2 SlJOIDnWU50z73iqE2jCt/h7qnFkr/pCt4oPZId3ylReRv2h8JzQMIUeWHG4geTR2BjX q6BnBqCLcNjrvFuXbxKTy+nwjyoVu/PHv8kQHdMfaC+sU9jUd27WaMsB28Uw59T2BJZt sVtiTGt38lFmjChJWpN2PmibFoVTk8VINTnDscVfffv0kOvIRL8vH+scWBb/X3jDjkE/ g+/w== X-Forwarded-Encrypted: i=1; AJvYcCUTSsLmD6sKmTTX4nCP7psPcThGe5mun1lgdqjUV6xg9zUnuEgh2HURYEZ3WKerZxAqIe1smb4mYMRzRPP9GcUUITTauNm3AzsOBriLI48= X-Gm-Message-State: AOJu0YyJmzY8K9X+wYwxPf2WVY5eko8Kp/T+u/E5RORy8iVavzt77NK7 IGehLtjCHl9/gaLaJtKOlC6fv2O0MD4sczwmIwdZ5SVAp1tByRPTgsbMxqlcQPSiDDxGWkNIJs2 0cIxBAHYj7gfKpwV2G7rb/C/eLawYn+uwWIKXa4RRZjXOgyPV5PZFEfo= X-Google-Smtp-Source: AGHT+IFZIWQjWGnnOclLWZCh56V9VO9E83SaMAcJ/kzj5FpSjaFbfTUUAoWSlF22hiVJa3xkwUZTH1LDpP2yVrOgtvyLvivS9Dqw Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6638:4093:b0:474:78f7:20d7 with SMTP id m19-20020a056638409300b0047478f720d7mr247478jam.3.1708964898244; Mon, 26 Feb 2024 08:28:18 -0800 (PST) Date: Mon, 26 Feb 2024 08:28:18 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000b18c2406124b652e@google.com> Subject: [syzbot] [wireless?] KMSAN: uninit-value in ieee80211_amsdu_to_8023s From: syzbot To: davem@davemloft.net, edumazet@google.com, johannes@sipsolutions.net, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 39133352cbed Merge tag 'for-linus' of git://git.kernel.org.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=178741c2180000 kernel config: https://syzkaller.appspot.com/x/.config?x=1b015d567058472 dashboard link: https://syzkaller.appspot.com/bug?extid=d050d437fe47d479d210 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 userspace arch: i386 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/72fbd705c5a5/disk-39133352.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/4715a07937bd/vmlinux-39133352.xz kernel image: https://storage.googleapis.com/syzbot-assets/0340c0b3a7dc/bzImage-39133352.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+d050d437fe47d479d210@syzkaller.appspotmail.com ===================================================== BUG: KMSAN: uninit-value in ieee80211_amsdu_to_8023s+0x8c1/0x2d40 net/wireless/util.c:856 ieee80211_amsdu_to_8023s+0x8c1/0x2d40 net/wireless/util.c:856 __ieee80211_rx_h_amsdu+0x91a/0x13b0 net/mac80211/rx.c:3047 ieee80211_rx_h_amsdu net/mac80211/rx.c:3133 [inline] ieee80211_rx_handlers+0x571a/0x10c40 net/mac80211/rx.c:4141 ieee80211_invoke_rx_handlers net/mac80211/rx.c:4185 [inline] ieee80211_prepare_and_rx_handle+0x5640/0x9690 net/mac80211/rx.c:5033 __ieee80211_rx_handle_packet net/mac80211/rx.c:5239 [inline] ieee80211_rx_list+0x642c/0x65d0 net/mac80211/rx.c:5410 ieee80211_rx_napi+0x84/0x3e0 net/mac80211/rx.c:5433 ieee80211_rx include/net/mac80211.h:4983 [inline] ieee80211_tasklet_handler+0x19f/0x330 net/mac80211/main.c:318 tasklet_action_common+0x391/0xd30 kernel/softirq.c:780 tasklet_action+0x26/0x30 kernel/softirq.c:805 __do_softirq+0x1b7/0x7c5 kernel/softirq.c:553 invoke_softirq kernel/softirq.c:427 [inline] __irq_exit_rcu kernel/softirq.c:632 [inline] irq_exit_rcu+0x69/0x120 kernel/softirq.c:644 sysvec_apic_timer_interrupt+0x7c/0x90 arch/x86/kernel/apic/apic.c:1076 asm_sysvec_apic_timer_interrupt+0x1f/0x30 arch/x86/include/asm/idtentry.h:649 update_stack_state+0x146/0x270 unwind_next_frame+0x1a2/0x480 arch/x86/kernel/unwind_frame.c:315 arch_stack_walk+0x1df/0x2c0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0xa9/0xe0 kernel/stacktrace.c:122 kmsan_save_stack_with_flags mm/kmsan/core.c:74 [inline] kmsan_internal_chain_origin+0x57/0xd0 mm/kmsan/core.c:183 __msan_chain_origin+0xc1/0x140 mm/kmsan/instrumentation.c:251 __skb_dst_copy include/net/dst.h:282 [inline] skb_dst_copy include/net/dst.h:290 [inline] __copy_skb_header+0x362/0x840 net/core/skbuff.c:1420 __skb_clone+0x57/0x650 net/core/skbuff.c:1471 skb_clone+0x3aa/0x540 net/core/skbuff.c:1961 __netlink_deliver_tap_skb net/netlink/af_netlink.c:300 [inline] __netlink_deliver_tap+0x60a/0xc90 net/netlink/af_netlink.c:325 netlink_deliver_tap net/netlink/af_netlink.c:338 [inline] __netlink_sendskb net/netlink/af_netlink.c:1285 [inline] netlink_sendskb+0x232/0x260 net/netlink/af_netlink.c:1294 netlink_unicast+0x70e/0x1250 net/netlink/af_netlink.c:1382 nlmsg_unicast include/net/netlink.h:1144 [inline] netlink_ack+0x1954/0x1a70 net/netlink/af_netlink.c:2505 netlink_rcv_skb+0x50a/0x650 net/netlink/af_netlink.c:2549 genl_rcv+0x40/0x60 net/netlink/genetlink.c:1217 netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline] netlink_unicast+0xf49/0x1250 net/netlink/af_netlink.c:1367 netlink_sendmsg+0x1238/0x13d0 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] __sys_sendto+0x735/0xa10 net/socket.c:2191 __do_compat_sys_socketcall net/compat.c:475 [inline] __se_compat_sys_socketcall+0xcea/0x1a10 net/compat.c:423 __ia32_compat_sys_socketcall+0x6b/0xa0 net/compat.c:423 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb5/0x110 arch/x86/entry/common.c:321 do_fast_syscall_32+0x37/0x70 arch/x86/entry/common.c:346 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:384 entry_SYSENTER_compat_after_hwframe+0x70/0x7a Local variable hdr created at: ieee80211_amsdu_to_8023s+0x5b/0x2d40 net/wireless/util.c:832 __ieee80211_rx_h_amsdu+0x91a/0x13b0 net/mac80211/rx.c:3047 CPU: 1 PID: 6024 Comm: syz-executor.4 Not tainted 6.8.0-rc5-syzkaller-00029-g39133352cbed #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 ===================================================== --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup