BUG: soft lockup in mld_dad_timer

Kernel	Title	Count	Last	Reported	Patched	Status
linux-4.19	BUG: soft lockup in mld_dad_timer_expire (2)	1	843d	843d	0/1	auto-obsoleted due to no activity on 2022/12/01 09:34
linux-4.14	BUG: soft lockup in mld_dad_timer_expire	1	1231d	1231d	0/1	auto-closed as invalid on 2021/11/07 19:15
linux-4.19	BUG: soft lockup in mld_dad_timer_expire	1	1015d	1015d	0/1	auto-closed as invalid on 2022/06/11 22:48

Bluetooth: hci3 command 0x0419 tx timeout audit: type=1804 audit(1638849337.074:2): pid=9433 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor.3" name="/root/syzkaller-testdir435365706/syzkaller.0AnEuv/0/file0" dev="sda1" ino=13897 res=1 watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.4:9420] Modules linked in: irq event stamp: 7019491 hardirqs last enabled at (7019490): [<ffffffff817eaf70>] kmem_cache_free+0x160/0x2b0 mm/slab.c:3759 hardirqs last disabled at (7019491): [<ffffffff874018ae>] apic_timer_interrupt+0x8e/0xa0 arch/x86/entry/entry_64.S:793 softirqs last enabled at (2802): [<ffffffff862065f8>] fib_table_delete+0x7c8/0xe20 net/ipv4/fib_trie.c:1590 softirqs last disabled at (3057): [<ffffffff81321d13>] invoke_softirq kernel/softirq.c:368 [inline] softirqs last disabled at (3057): [<ffffffff81321d13>] irq_exit+0x193/0x240 kernel/softirq.c:409 CPU: 0 PID: 9420 Comm: syz-executor.4 Not tainted 4.14.256-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8880b4c96140 task.stack: ffff88806afb0000 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:779 [inline] RIP: 0010:kmem_cache_free+0x173/0x2b0 mm/slab.c:3759 RSP: 0018:ffff8880ba406f18 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10 RAX: 0000000000000007 RBX: ffff8880589e8500 RCX: 1ffff11016992d4c RDX: 0000000000000000 RSI: ffff8880b4c96b30 RDI: 0000000000000286 RBP: ffff88823a817240 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000286 R13: ffffffff85be5e18 R14: ffffffff85c2a95a R15: 00000000000354c0 FS: 00007f8b15a99700(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000186bd10 CR3: 0000000096e75000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <IRQ> kfree_skbmem+0x98/0x100 net/core/skbuff.c:595 __kfree_skb net/core/skbuff.c:655 [inline] kfree_skb+0xf4/0x390 net/core/skbuff.c:672 enqueue_to_backlog+0x23a/0xce0 net/core/dev.c:3906 netif_rx_internal+0xe2/0x800 net/core/dev.c:4072 loopback_xmit+0x23a/0x580 drivers/net/loopback.c:91 __netdev_start_xmit include/linux/netdevice.h:4051 [inline] netdev_start_xmit include/linux/netdevice.h:4060 [inline] xmit_one net/core/dev.c:3005 [inline] dev_hard_start_xmit+0x188/0x890 net/core/dev.c:3021 __dev_queue_xmit+0x1d7f/0x2480 net/core/dev.c:3521 neigh_hh_output include/net/neighbour.h:490 [inline] neigh_output include/net/neighbour.h:498 [inline] ip_finish_output2+0x9db/0x1340 net/ipv4/ip_output.c:230 ip_do_fragment+0xa24/0x1fb0 net/ipv4/ip_output.c:815 ip_fragment.constprop.0+0x146/0x200 net/ipv4/ip_output.c:551 ip_finish_output+0x89e/0xc50 net/ipv4/ip_output.c:316 NF_HOOK_COND include/linux/netfilter.h:239 [inline] ip_output+0x1cd/0x510 net/ipv4/ip_output.c:406 dst_output include/net/dst.h:470 [inline] ip_local_out+0x93/0x170 net/ipv4/ip_output.c:125 iptunnel_xmit+0x5cc/0x950 net/ipv4/ip_tunnel_core.c:91 geneve_xmit_skb drivers/net/geneve.c:867 [inline] geneve_xmit+0xf15/0x2ca0 drivers/net/geneve.c:948 __netdev_start_xmit include/linux/netdevice.h:4051 [inline] netdev_start_xmit include/linux/netdevice.h:4060 [inline] xmit_one net/core/dev.c:3005 [inline] dev_hard_start_xmit+0x188/0x890 net/core/dev.c:3021 __dev_queue_xmit+0x1d7f/0x2480 net/core/dev.c:3521 neigh_hh_output include/net/neighbour.h:490 [inline] neigh_output include/net/neighbour.h:498 [inline] ip6_finish_output2+0xc6a/0x1f10 net/ipv6/ip6_output.c:120 ip6_finish_output+0x5c6/0xd50 net/ipv6/ip6_output.c:192 NF_HOOK_COND include/linux/netfilter.h:239 [inline] ip6_output+0x1c5/0x660 net/ipv6/ip6_output.c:209 dst_output include/net/dst.h:470 [inline] NF_HOOK include/linux/netfilter.h:250 [inline] mld_sendpack+0x5fe/0xea0 net/ipv6/mcast.c:1657 mld_send_initial_cr.part.0+0xf5/0x140 net/ipv6/mcast.c:2074 mld_send_initial_cr net/ipv6/mcast.c:1170 [inline] mld_dad_timer_expire+0x140/0x520 net/ipv6/mcast.c:2093 call_timer_fn+0x14a/0x650 kernel/time/timer.c:1280 expire_timers+0x232/0x4d0 kernel/time/timer.c:1319 __run_timers kernel/time/timer.c:1637 [inline] run_timer_softirq+0x1d5/0x5a0 kernel/time/timer.c:1650 __do_softirq+0x24d/0x9ff kernel/softirq.c:288 invoke_softirq kernel/softirq.c:368 [inline] irq_exit+0x193/0x240 kernel/softirq.c:409 exiting_irq arch/x86/include/asm/apic.h:638 [inline] smp_apic_timer_interrupt+0x141/0x5e0 arch/x86/kernel/apic/apic.c:1106 apic_timer_interrupt+0x93/0xa0 arch/x86/entry/entry_64.S:793 </IRQ> RIP: 0010:__sanitizer_cov_trace_pc+0x3d/0x50 kernel/kcov.c:87 RSP: 0018:ffff88806afb67b0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10 RAX: 0000000000040000 RBX: 00007f8b16b23af9 RCX: ffffc900079fd000 RDX: 000000000000822d RSI: ffffffff815e2676 RDI: ffff8880ba42ca8c RBP: 00007f8b16b23af9 R08: 0000000000000000 R09: 0000000000020012 R10: ffff8880b4c96a18 R11: ffff8880b4c96140 R12: ffff88806afb68a8 R13: 0000000000000000 R14: ffff88813fe74040 R15: 00000000000000c0 bpf_jit_kallsyms_enabled include/linux/filter.h:803 [inline] bpf_prog_kallsyms_find kernel/bpf/core.c:420 [inline] is_bpf_text_address+0x56/0x150 kernel/bpf/core.c:458 kernel_text_address kernel/extable.c:150 [inline] kernel_text_address+0xbd/0xf0 kernel/extable.c:120 __kernel_text_address+0x9/0x30 kernel/extable.c:105 unwind_get_return_address arch/x86/kernel/unwind_orc.c:252 [inline] unwind_get_return_address+0x51/0x90 arch/x86/kernel/unwind_orc.c:247 __save_stack_trace+0xa0/0x160 arch/x86/kernel/stacktrace.c:45 save_stack mm/kasan/kasan.c:447 [inline] set_track mm/kasan/kasan.c:459 [inline] kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:551 slab_post_alloc_hook mm/slab.h:442 [inline] slab_alloc mm/slab.c:3390 [inline] __do_kmalloc mm/slab.c:3718 [inline] __kmalloc+0x144/0x400 mm/slab.c:3729 kmalloc include/linux/slab.h:493 [inline] kzalloc include/linux/slab.h:661 [inline] tnode_alloc net/ipv4/fib_trie.c:343 [inline] tnode_new+0x74/0x2a0 net/ipv4/fib_trie.c:390 inflate net/ipv4/fib_trie.c:601 [inline] resize+0x869/0x1d00 net/ipv4/fib_trie.c:874 trie_rebalance net/ipv4/fib_trie.c:1014 [inline] fib_remove_alias net/ipv4/fib_trie.c:1510 [inline] fib_table_delete+0xa70/0xe20 net/ipv4/fib_trie.c:1585 fib_magic+0x2db/0x460 net/ipv4/fib_frontend.c:863 fib_del_ifaddr+0x9f4/0xe10 net/ipv4/fib_frontend.c:1043 fib_inetaddr_event+0xa5/0x260 net/ipv4/fib_frontend.c:1174 notifier_call_chain+0x108/0x1a0 kernel/notifier.c:93 __blocking_notifier_call_chain kernel/notifier.c:317 [inline] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] blocking_notifier_call_chain kernel/notifier.c:328 [inline] blocking_notifier_call_chain+0x79/0x90 kernel/notifier.c:325 __inet_del_ifa+0x4c1/0xaf0 net/ipv4/devinet.c:409 inet_del_ifa net/ipv4/devinet.c:439 [inline] inetdev_destroy net/ipv4/devinet.c:304 [inline] inetdev_event+0x4ec/0x10a0 net/ipv4/devinet.c:1529 notifier_call_chain+0x108/0x1a0 kernel/notifier.c:93 call_netdevice_notifiers_info net/core/dev.c:1667 [inline] call_netdevice_notifiers_mtu net/core/dev.c:1706 [inline] dev_set_mtu+0x23d/0x3c0 net/core/dev.c:6921 do_setlink+0x4f3/0x2bf0 net/core/rtnetlink.c:2055 rtnl_group_changelink net/core/rtnetlink.c:2512 [inline] rtnl_newlink+0xccc/0x1860 net/core/rtnetlink.c:2666 rtnetlink_rcv_msg+0x3be/0xb10 net/core/rtnetlink.c:4320 netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2441 netlink_unicast_kernel net/netlink/af_netlink.c:1294 [inline] netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1320 netlink_sendmsg+0x638/0xb90 net/netlink/af_netlink.c:1886 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f8b16b23af9 RSP: 002b:00007f8b15a99188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f8b16c36f60 RCX: 00007f8b16b23af9 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000004 RBP: 00007f8b16b7dff7 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe2238aeff R14: 00007f8b15a99300 R15: 0000000000022000 Code: eb 11 48 63 75 74 48 89 df e8 7a 3b 9b 01 e9 11 ff ff ff e8 60 c8 c2 ff 48 83 3d 50 e4 71 07 00 0f 84 22 01 00 00 4c 89 e7 57 9d <0f> 1f 44 00 00 e9 31 ff ff ff 65 8b 05 9c 71 83 7e 83 f8 07 0f Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at pc 0xffffffff8723c75e ---------------- Code disassembly (best guess): 0: eb 11 jmp 0x13 2: 48 63 75 74 movslq 0x74(%rbp),%rsi 6: 48 89 df mov %rbx,%rdi 9: e8 7a 3b 9b 01 callq 0x19b3b88 e: e9 11 ff ff ff jmpq 0xffffff24 13: e8 60 c8 c2 ff callq 0xffc2c878 18: 48 83 3d 50 e4 71 07 cmpq $0x0,0x771e450(%rip) # 0x771e470 1f: 00 20: 0f 84 22 01 00 00 je 0x148 26: 4c 89 e7 mov %r12,%rdi 29: 57 push %rdi 2a: 9d popfq * 2b: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) <-- trapping instruction 30: e9 31 ff ff ff jmpq 0xffffff66 35: 65 8b 05 9c 71 83 7e mov %gs:0x7e83719c(%rip),%eax # 0x7e8371d8 3c: 83 f8 07 cmp $0x7,%eax 3f: 0f .byte 0xf