From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f205.google.com (mail-il1-f205.google.com [209.85.166.205]) (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 B224C20D4E9 for ; Thu, 27 Mar 2025 10:01:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.205 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743069692; cv=none; b=W8nWNgDYc/xsBHpd80/k3rIwV0HChYIxKUbbE+juIt1GKrVoV46bPo3WIwcsMbE3Ckc+hVhE2OJTYFWRnG9CNSGmZwyqYNRf6Frru6wNJL/a1b/YxqKHNdlYE4NICI42LNMW7O6bZq3yv6LDUW5/ZUNqDqQYJRjAp6xFGzsRwPA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743069692; c=relaxed/simple; bh=j1u/b6iCpo77sQix5aePB/OgDjxe3cQtEhK8F+Ct0bs=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=Mz/asg6WEIFztL6SV6U6fqDteRuHvTFSu4DpkMv9UjEB7F1xFZruH7dymamjEqr8DAIfWPm4PmV/tUj7Iw17BccmJqwv2ubR5AX5Ln6yJP/lKXn1LU5khbBSABMtsC2Xv6rs45OSay2nofDyTXxEytoy+eFFRPIFfG3oljSEjqA= 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=209.85.166.205 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-f205.google.com with SMTP id e9e14a558f8ab-3d2b3882febso6767915ab.1 for ; Thu, 27 Mar 2025 03:01:30 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1743069690; x=1743674490; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=9FCTDFjot83WRhacSWxYLmYj5o4MLFgu3vOAVYbujYg=; b=Eyyjz5DIBHwfJCF0sNbyvsUEIjyJQ709a8PV9S3QyhkYtjwQ1javQY9y5pqcMDY+bF a5z21kDNE90ER0IXVhF4+gPU+MRDgsgkWp9/DHSgYVYSoa1gxZ4PF1qkC8q7jD/1aIO3 Z7JUTYIV/oPvhZaAmp2YoEC/bywyoRSPZ/GDZD5CDQm9gHOWfSdslIxBLa2seIhLGcrN MnQXO5PgoiRgPfO64f3Tcv3fHCJ51+jITW7NOY6Rqc2Q/SzlaaZzbFpehyChvhWgsWge SQ+UViDrzm4IiqJLfN5p00RVydc/H66N5oKgKnc8mthbqUFfF6vsICWhoIg0F96FX/RS 2Y3A== X-Forwarded-Encrypted: i=1; AJvYcCWmsA6Srwwp8/IMesVGTYV/CBBhrpUEDWBDuSGqfM9GNjk9ODegtpSaDIywlpsc68MBUt+oUtMKhFwA9P8=@vger.kernel.org X-Gm-Message-State: AOJu0YwzqXwJ6/4Wqt7vKIGjoy3auuzbdV44pD+QcQJ+9kH90vnfefVH I2FvsUd27iMAT7rRtwaa7Wn5bDLfQNj3C7JnwXtQESFB6BCwPumcC0MqdJb2UZD4c8NCK0s3u4m QY2zxwd0aXm4JXWI0Ivx//HyNXYMgbiA8TarlFXklRvwTV5VQixWaGkM= X-Google-Smtp-Source: AGHT+IFoLzbWRAGxKnp3Q6LF8u6vpecr4X5rw2S7Dfi5RcsMZULrf0k/LG9uP0ha6SzXHmOTVZxaiPIg6mVyBWNbag8BbF2FfSyj Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:2192:b0:3d3:eeec:89f3 with SMTP id e9e14a558f8ab-3d5ccdd5473mr31428105ab.13.1743069689682; Thu, 27 Mar 2025 03:01:29 -0700 (PDT) Date: Thu, 27 Mar 2025 03:01:29 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67e521f9.050a0220.2f068f.0026.GAE@google.com> Subject: [syzbot] [net?] kernel BUG in skbprio_enqueue From: syzbot To: davem@davemloft.net, edumazet@google.com, horms@kernel.org, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com, xiyou.wangcong@gmail.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: f6e0150b2003 Merge tag 'mtd/for-6.15' of git://git.kernel... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=13a14a4c580000 kernel config: https://syzkaller.appspot.com/x/.config?x=46a07195688b794b dashboard link: https://syzkaller.appspot.com/bug?extid=a3422a19b05ea96bee18 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=109e343f980000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1037abb0580000 Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-f6e0150b.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/7ade4c34c9b1/vmlinux-f6e0150b.xz kernel image: https://storage.googleapis.com/syzbot-assets/1fe37b97ec9d/bzImage-f6e0150b.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+a3422a19b05ea96bee18@syzkaller.appspotmail.com ------------[ cut here ]------------ kernel BUG at net/sched/sch_skbprio.c:127! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5396 Comm: kworker/0:11 Not tainted 6.14.0-syzkaller-03565-gf6e0150b2003 #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Workqueue: mld mld_ifc_work RIP: 0010:skbprio_enqueue+0x1123/0x1150 net/sched/sch_skbprio.c:127 Code: 4c 89 fe e8 df 18 28 fb 4c 8b 6c 24 10 48 ba 00 00 00 00 00 fc ff df e9 87 f5 ff ff e8 76 2c b6 f7 90 0f 0b e8 6e 2c b6 f7 90 <0f> 0b 89 f9 80 e1 07 80 c1 03 38 c1 7c 88 e8 aa 58 1e f8 eb 81 89 RSP: 0018:ffffc9000d9de960 EFLAGS: 00010293 RAX: ffffffff8a0d4a22 RBX: 0000000000000002 RCX: ffff88801ed8a440 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000001 RBP: 0000000000000000 R08: ffffffff8a0d41e8 R09: 0000000000000000 R10: ffff888043706c80 R11: ffffed10086e0d92 R12: ffff8880493798c0 R13: ffff888049378000 R14: 000000000000008e R15: ffff888049379dc0 FS: 0000000000000000(0000) GS:ffff88808c824000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb035bc92f0 CR3: 000000000e938000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: qdisc_enqueue include/net/sch_generic.h:850 [inline] tbf_enqueue+0x362/0x6e0 net/sched/sch_tbf.c:258 dev_qdisc_enqueue+0x4b/0x290 net/core/dev.c:4008 __dev_xmit_skb net/core/dev.c:4104 [inline] __dev_queue_xmit+0xf13/0x3f60 net/core/dev.c:4618 dev_queue_xmit include/linux/netdevice.h:3313 [inline] neigh_hh_output include/net/neighbour.h:523 [inline] neigh_output include/net/neighbour.h:537 [inline] ip_finish_output2+0xcd5/0x12e0 net/ipv4/ip_output.c:236 iptunnel_xmit+0x560/0x9c0 net/ipv4/ip_tunnel_core.c:82 udp_tunnel_xmit_skb+0x264/0x3c0 net/ipv4/udp_tunnel_core.c:173 geneve_xmit_skb drivers/net/geneve.c:916 [inline] geneve_xmit+0x2119/0x2c30 drivers/net/geneve.c:1039 __netdev_start_xmit include/linux/netdevice.h:5151 [inline] netdev_start_xmit include/linux/netdevice.h:5160 [inline] xmit_one net/core/dev.c:3800 [inline] dev_hard_start_xmit+0x27a/0x7d0 net/core/dev.c:3816 __dev_queue_xmit+0x1b80/0x3f60 net/core/dev.c:4652 dev_queue_xmit include/linux/netdevice.h:3313 [inline] neigh_hh_output include/net/neighbour.h:523 [inline] neigh_output include/net/neighbour.h:537 [inline] ip6_finish_output2+0x128c/0x17e0 net/ipv6/ip6_output.c:141 __ip6_finish_output net/ipv6/ip6_output.c:-1 [inline] ip6_finish_output+0x421/0x840 net/ipv6/ip6_output.c:226 NF_HOOK+0xa0/0x440 include/linux/netfilter.h:314 mld_sendpack+0x84a/0xdb0 net/ipv6/mcast.c:1868 mld_send_cr net/ipv6/mcast.c:2169 [inline] mld_ifc_work+0x7d9/0xd90 net/ipv6/mcast.c:2702 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0xac3/0x18e0 kernel/workqueue.c:3319 worker_thread+0x870/0xd30 kernel/workqueue.c:3400 kthread+0x7a9/0x920 kernel/kthread.c:464 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:skbprio_enqueue+0x1123/0x1150 net/sched/sch_skbprio.c:127 Code: 4c 89 fe e8 df 18 28 fb 4c 8b 6c 24 10 48 ba 00 00 00 00 00 fc ff df e9 87 f5 ff ff e8 76 2c b6 f7 90 0f 0b e8 6e 2c b6 f7 90 <0f> 0b 89 f9 80 e1 07 80 c1 03 38 c1 7c 88 e8 aa 58 1e f8 eb 81 89 RSP: 0018:ffffc9000d9de960 EFLAGS: 00010293 RAX: ffffffff8a0d4a22 RBX: 0000000000000002 RCX: ffff88801ed8a440 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000001 RBP: 0000000000000000 R08: ffffffff8a0d41e8 R09: 0000000000000000 R10: ffff888043706c80 R11: ffffed10086e0d92 R12: ffff8880493798c0 R13: ffff888049378000 R14: 000000000000008e R15: ffff888049379dc0 FS: 0000000000000000(0000) GS:ffff88808c824000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb035bc92f0 CR3: 000000000e938000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- 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 syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. 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