From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f78.google.com (mail-io1-f78.google.com [209.85.166.78]) (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 3997724B34 for ; Sat, 7 Dec 2024 05:10:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.78 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733548228; cv=none; b=tJlJYCj4GjXxqrfWt91ax7HSMC0JudG89DRPrr9Njn57NjRnbhl/r+/fn/OJ2jRUR8t32vCvGzLbTmTuwCrzBlhcLm19JxVg6Ac4NbS6wzlO2ynjPnzty3/Tsr957ai5PoKfYYa1xZTH07rur8xBGb/6n6eofF3se/TOD5SdsXc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733548228; c=relaxed/simple; bh=et1z/KUmz8usDOn7via7XGKSBW4cSCbTg4tBkTkfDL8=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=f1yZA5vb0zATvttx3YLG/Eh6W2TEr50vPSyuwD1b5S/NPiE1/M0rdwJ2j0Sv0hNgdvF2rspBfr3xBpYrsZBdVTvu4LNWMbC/6CM4bIoMVxEL3U4vSJj/Kq+p/b9ajztMx7GaK9Qb+hlJLTqTigk/B7A4J3l/UvPYXFFTry9u8Lk= 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=209.85.166.78 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-io1-f78.google.com with SMTP id ca18e2360f4ac-841896ec108so450630839f.1 for ; Fri, 06 Dec 2024 21:10:25 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1733548225; x=1734153025; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=8f2I+1uZRwsWPiIe3GqMd//ZCSLDRADHYVc75cI1Ges=; b=k1E0zo7cGs1hJYu2bRN8V0CYeRV9QSCPG8iCTLKrv3d9d3jjen4eOcNV2VWbKl8D+s 3Acx9GMmxkgu6toXBwL6jb84E1rN+ua6altqH1opUm8p/3nfLWYHJksWwbYE4iq3tShv i5yH9i/ZbJfkB5+Xy0/d/00InR6bZaq3znaWu5UVNqkESJIVyAlJVWQggu96yudwUOxj koZUq+aT7uygv3z1PwShElH9Tzt6q5Yf2sw6ZRuqv4ULeQr+Ftnz5wjTOsviu/YBp0sP QjitD8dTwapRJ/bxU+VLPba9t1/p2Fs2xJ14S81SrlT6dkKBMwx1vS94OCPePH7Bzv6w pH+w== X-Forwarded-Encrypted: i=1; AJvYcCVQZEw13Rz2QcE/GGKDSzDeV4vHfjg3BxJkBJxf1mFzqkWO53uSq2S7NBGNEHMLRWxVmr9hOPvvNC862o8=@vger.kernel.org X-Gm-Message-State: AOJu0YwqfDFbvypyw9HhNqzL2vbkuSQWO+zCJMCEM+w0Ef8kGHB1YHCs M+Yuj91TDsVPKi/DHCanOFmB/XxrIBk5l6AlD/TNt9xPD1zM3KTKVR88I/l9GKssZ0x+uVAfWZX 4jWjMA4Hc+8ttnwG/SLuU0r9eby22No0KHuB9u3Hn0NDj+4hJV5+w6Fk= X-Google-Smtp-Source: AGHT+IHKs3Fulw6z20FvxC3nCjkPPZgRJVQIWaH8JYYw6aFE/qX9/QQo2Bpa3i3xa8SuyDIF3kNC8FJNEbCfy3s1DIQRvZNybRwh Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:12c5:b0:3a7:a3a4:2cb3 with SMTP id e9e14a558f8ab-3a811e06230mr60927205ab.15.1733548225288; Fri, 06 Dec 2024 21:10:25 -0800 (PST) Date: Fri, 06 Dec 2024 21:10:25 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6753d8c1.050a0220.a30f1.0151.GAE@google.com> Subject: [syzbot] [net?] WARNING in NUM From: syzbot To: davem@davemloft.net, dsahern@kernel.org, edumazet@google.com, horms@kernel.org, kuba@kernel.org, linux-kernel@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: cdd30ebb1b9f module: Convert symbol namespace to string li.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=146c8330580000 kernel config: https://syzkaller.appspot.com/x/.config?x=6851fe4f61792030 dashboard link: https://syzkaller.appspot.com/bug?extid=3f059ffbdd539a3f6bc9 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-cdd30ebb.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/35bb9b3cd157/vmlinux-cdd30ebb.xz kernel image: https://storage.googleapis.com/syzbot-assets/9c6bbf481907/bzImage-cdd30ebb.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+3f059ffbdd539a3f6bc9@syzkaller.appspotmail.com Dec 3 05:04:02 syzkaller daemon.info dhcpcd[5653]: eth3: IAID d8:df:c9:55 Dec 3 05:04:02 syzkaller daemon.info dhcpcd[5653]: eth3: adding address fe80::7[ 49.690919][ T6466] ------------[ cut here ]------------ f27:c3e8:bb45:52[ 49.693207][ T6466] WARNING: CPU: 3 PID: 6466 at net/ipv6/ip6mr.c:419 ip6mr_free_table+0xbd/0x120 net/ipv6/ip6mr.c:419 df Dec 3 05:04:02 [ 49.710042][ T6466] Code: 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 58 49 83 bc 24 c0 0e 00 00 00 74 09 e8 c4 c5 af f7 90 <0f> 0b 90 e8 bb c5 af f7 48 8d 7b 38 e8 22 86 9c f7 48 89 df be 0f syzkaller kern.w[ 49.717312][ T6466] RSP: 0018:ffffc90003487bd8 EFLAGS: 00010293 arn kernel: [ [ 49.719598][ T6466] RAX: 0000000000000000 RBX: ffff888108508000 RCX: ffffffff89ea4014 49.690919][ T646[ 49.725534][ T6466] RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000 6] ------------[[ 49.725548][ T6466] R10: 0000000000000001 R11: 0000000000000001 R12: ffff88804e965ac0 cut here ]-----[ 49.725561][ T6466] R13: ffff888108508000 R14: ffff888108508008 R15: dead000000000100 ------- Dec 3 05:04:02 [ 49.739536][ T6466] CR2: 00007f4fd5157580 CR3: 0000000035ea8000 CR4: 0000000000352ef0 syzkaller kern.w[ 49.742428][ T6466] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 arn kernel: [ [ 49.746956][ T6466] Call Trace: 49.693207][ T646[ 49.748809][ T6466] ? __warn+0xea/0x3c0 kernel/panic.c:746 6] WARNING: CPU:[ 49.750217][ T6466] ? ip6mr_free_table+0xbd/0x120 net/ipv6/ip6mr.c:419 3 PID: 6466 at [ 49.751877][ T6466] ? __report_bug lib/bug.c:199 [inline] 3 PID: 6466 at [ 49.751877][ T6466] ? report_bug+0x3c0/0x580 lib/bug.c:219 net/ipv6/ip6mr.c[ 49.751908][ T6466] ? exc_invalid_op+0x17/0x50 arch/x86/kernel/traps.c:309 :419 ip6mr_free_[ 49.751922][ T6466] ? asm_exc_invalid_op+0x1a/0x20 arch/x86/include/asm/idtentry.h:621 table+0xbd/0x120[ 49.759463][ T6466] ? ip6mr_free_table+0xbc/0x120 net/ipv6/ip6mr.c:419 Dec 3 05:04:02 syzkaller kern[ 49.762545][ T6466] ? ip6mr_free_table+0xbc/0x120 net/ipv6/ip6mr.c:419 .warn kernel: [ [ 49.765091][ T6466] ip6mr_rules_exit+0x176/0x2d0 net/ipv6/ip6mr.c:283 49.696818][ T6[ 49.767196][ T6466] ip6mr_net_exit_batch+0x53/0xa0 net/ipv6/ip6mr.c:1388 466] Modules lin[ 49.768971][ T6466] ? __pfx_ip6mr_net_exit_batch+0x10/0x10 net/ipv6/ip6mr.c:285 ked in: Dec 3 05:04:02 [ 49.769038][ T6466] setup_net+0x4fe/0x860 net/core/net_namespace.c:394 syzkaller kern.w[ 49.769059][ T6466] ? __pfx_setup_net+0x10/0x10 net/core/net_namespace.c:185 arn kernel: [ [ 49.778049][ T6466] ? __down_read_common kernel/locking/rwsem.c:1255 [inline] arn kernel: [ [ 49.778049][ T6466] ? __down_read_killable kernel/locking/rwsem.c:1271 [inline] arn kernel: [ [ 49.778049][ T6466] ? down_read_killable+0xcc/0x380 kernel/locking/rwsem.c:1549 49.699801][ T646[ 49.781754][ T6466] ? lockdep_init_map_waits include/linux/lockdep.h:135 [inline] 49.699801][ T646[ 49.781754][ T6466] ? lockdep_init_map_wait include/linux/lockdep.h:142 [inline] 49.699801][ T646[ 49.781754][ T6466] ? __raw_spin_lock_init+0x3a/0x110 kernel/locking/spinlock_debug.c:25 6] CPU: 3 UID: 0 PID: 6466 Comm: syz.2.106 Not tainted 6.13.0-rc1-syzkaller-00002-gcdd30ebb1b9f #0 --- 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