watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz.2.3:396]
Modules linked in:
CPU: 0 PID: 396 Comm: syz.2.3 Not tainted 5.4.274-syzkaller-00002-g6f97bd951d82 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:ndisc_send_skb+0x683/0xc30 net/ipv6/ndisc.c:510
Code: 8b 1b 65 48 ff 43 28 48 8b 44 24 60 42 0f b6 04 20 84 c0 0f 85 7e 03 00 00 48 8b 44 24 18 8b 00 65 48 01 43 30 43 80 3c 27 00 <48> 8b 5c 24 48 74 08 48 89 df e8 2e 1d b9 fd 4c 8d a4 24 c0 00 00
RSP: 0018:ffff8881f6e09a40 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000030 RBX: 0000607e08e14530 RCX: ffff8881f37eee40
RDX: 0000000000000100 RSI: ffff8881dc3b5000 RDI: 0000000000000000
RBP: ffff8881f6e09c30 R08: ffffffff83db035a R09: ffffed103deaff17
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff8881dc854800 R14: ffff8881dc3b5000 R15: 1ffff1103e1bc2c8
FS:  00007f1cf06236c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000001f51c1000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3953
 call_timer_fn+0x36/0x390 kernel/time/timer.c:1448
 expire_timers kernel/time/timer.c:1493 [inline]
 __run_timers+0x879/0xbe0 kernel/time/timer.c:1817
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1830
 __do_softirq+0x23b/0x6b7 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x195/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:538 [inline]
 smp_apic_timer_interrupt+0x11a/0x460 arch/x86/kernel/apic/apic.c:1149
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:834
 </IRQ>
RIP: 0010:fput+0x0/0x20 fs/file_table.c:357
Code: 66 2e 0f 1f 84 00 00 00 00 00 53 48 89 fb e8 d7 0e c9 ff 48 89 df 5b e9 ee 00 00 00 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 <53> 48 89 fb e8 b7 0e c9 ff 48 89 df be 01 00 00 00 5b e9 19 fe ff
RSP: 0018:ffff8881ef4a7ee0 EFLAGS: 00000283 ORIG_RAX: ffffffffffffff13
RAX: ffffffff819fa605 RBX: ffff8881efb9ec00 RCX: 0000000000040000
RDX: ffffc90000942000 RSI: 00000000000014ac RDI: ffff8881efb9ec00
RBP: 0000000000000000 R08: ffffffff819fa5f3 R09: ffffed103e221f0b
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000005452
R13: 00000000200006c0 R14: 0000000000000005 R15: ffff8881efb9ec01
 fdput include/linux/file.h:44 [inline]
 ksys_ioctl fs/ioctl.c:743 [inline]
 __do_sys_ioctl fs/ioctl.c:749 [inline]
 __se_sys_ioctl fs/ioctl.c:747 [inline]
 __x64_sys_ioctl+0xfd/0x110 fs/ioctl.c:747
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
RIP: 0033:0x7f1cf13a1b29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1cf0623048 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f1cf152ffa0 RCX: 00007f1cf13a1b29
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000005
RBP: 00007f1cf1422756 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f1cf152ffa0 R15: 00007ffdc63a1f28
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 384 Comm: syz.0.1 Not tainted 5.4.274-syzkaller-00002-g6f97bd951d82 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x50 kernel/kcov.c:186
Code: 00 00 00 0f 1f 00 be 0c 00 00 00 48 c7 c7 a0 a7 f1 85 e8 3f de 2f 00 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 04 24 <65> 48 8b 0d 54 51 9e 7e 65 8b 15 59 51 9e 7e f7 c2 00 01 1f 00 74
RSP: 0018:ffff8881f6f08b38 EFLAGS: 00000097
RAX: ffffffff816d89b2 RBX: 0000000000000001 RCX: 0000000000010503
RDX: 0000000000010503 RSI: 0000000000000001 RDI: 0000000000000008
RBP: 0000000000000001 R08: ffffffff816d89a8 R09: ffffed103b359663
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007f7c727746c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31e1eff8 CR3: 00000001f4ed7000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 irq_work_run+0x82/0xe0 kernel/irq_work.c:181
 smp_irq_work_interrupt+0x7f/0x250 arch/x86/kernel/irq_work.c:21
 irq_work_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:865
RIP: 0010:unwind_next_frame+0xe90/0x1ea0 arch/x86/kernel/unwind_orc.c:522
Code: 5a 01 43 0f b6 04 3c 84 c0 0f 85 36 0c 00 00 49 89 dc 49 c1 ec 03 43 0f b6 04 3c 84 c0 0f 85 47 0c 00 00 0f b6 72 01 83 e6 03 <83> fe 02 0f 84 7d 02 00 00 83 fe 01 0f 84 a1 01 00 00 85 f6 0f 85
RSP: 0018:ffff8881f6f08c40 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff09
RAX: 0000000000000000 RBX: ffffffff86b34473 RCX: 1ffff1103ede11e8
RDX: ffffffff86b34472 RSI: 0000000000000001 RDI: ffff8881f6f09ff8
RBP: ffff8881f6f08f30 R08: 000000000000001a R09: ffff8881f6f08f90
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffffffff0d6688e
R13: ffff8881f6f08f40 R14: ffff8881f6f08da0 R15: dffffc0000000000
 arch_stack_walk+0x111/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x118/0x1c0 kernel/stacktrace.c:123
 save_stack mm/kasan/common.c:70 [inline]
 set_track mm/kasan/common.c:78 [inline]
 kasan_set_free_info mm/kasan/common.c:345 [inline]
 __kasan_slab_free+0x1b5/0x270 mm/kasan/common.c:487
 slab_free_hook mm/slub.c:1455 [inline]
 slab_free_freelist_hook mm/slub.c:1494 [inline]
 slab_free mm/slub.c:3080 [inline]
 kfree+0x123/0x370 mm/slub.c:4071
 skb_release_all net/core/skbuff.c:675 [inline]
 __kfree_skb net/core/skbuff.c:689 [inline]
 kfree_skb+0xb8/0x3c0 net/core/skbuff.c:708
 ipip6_tunnel_xmit net/ipv6/sit.c:1000 [inline]
 sit_tunnel_xmit+0xf56/0x2460 net/ipv6/sit.c:1035
 __netdev_start_xmit include/linux/netdevice.h:4538 [inline]
 netdev_start_xmit include/linux/netdevice.h:4552 [inline]
 xmit_one net/core/dev.c:3221 [inline]
 dev_hard_start_xmit+0x1b7/0x6b0 net/core/dev.c:3237
 __dev_queue_xmit+0x14da/0x27e0 net/core/dev.c:3802
 neigh_output include/net/neighbour.h:518 [inline]
 ip6_finish_output2+0xf9e/0x18e0 net/ipv6/ip6_output.c:144
 NF_HOOK_COND include/linux/netfilter.h:292 [inline]
 ip6_output+0x1b3/0x430 net/ipv6/ip6_output.c:248
 dst_output include/net/dst.h:438 [inline]
 NF_HOOK include/linux/netfilter.h:303 [inline]
 ndisc_send_skb+0x702/0xc30 net/ipv6/ndisc.c:509
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3953
 call_timer_fn+0x36/0x390 kernel/time/timer.c:1448
 expire_timers kernel/time/timer.c:1493 [inline]
 __run_timers+0x879/0xbe0 kernel/time/timer.c:1817
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1830
 __do_softirq+0x23b/0x6b7 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x195/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:538 [inline]
 smp_apic_timer_interrupt+0x11a/0x460 arch/x86/kernel/apic/apic.c:1149
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:834
 </IRQ>
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x45/0x60 kernel/locking/spinlock.c:199
Code: 08 00 74 0c 48 c7 c7 90 3b eb 85 e8 75 12 43 fd 48 83 3d cd 2c 9a 01 00 74 29 48 89 df e8 e3 e7 fa fc 66 90 fb bf 01 00 00 00 <e8> 66 d4 f3 fc 65 8b 05 ab 7e b1 7b 85 c0 74 02 5b c3 e8 34 45 af
RSP: 0018:ffff8881d9a37c50 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000001 RBX: ffff8881f6f57b40 RCX: dffffc0000000000
RDX: 0000000040000002 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffff8881d9a37cb0 R08: ffffffff81799989 R09: fffffbfff0c96e5b
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f6f57b40
R13: ffff8881db6f8fc0 R14: dffffc0000000000 R15: ffff8881f47d5c80
 finish_lock_switch kernel/sched/core.c:3347 [inline]
 finish_task_switch+0x130/0x590 kernel/sched/core.c:3447
 context_switch kernel/sched/core.c:3611 [inline]
 __schedule+0xb0d/0x1320 kernel/sched/core.c:4307
 preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:4558
 retint_kernel+0x1b/0x1b
RIP: 0010:__x64_sys_futex+0x0/0xf0 kernel/futex.c:3917
Code: 8c fb f5 ff ff e8 20 08 3b 00 e9 f1 f5 ff ff e8 16 23 0b 00 e8 c1 05 3b 00 0f 0b e8 5a d8 e1 ff 66 2e 0f 1f 84 00 00 00 00 00 <55> 41 57 41 56 41 55 41 54 53 50 48 89 fb 49 be 00 00 00 00 00 fc
RSP: 0018:ffff8881d9a37f18 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff02
RAX: 1ffffffff094076e RBX: ffffffff84a03b70 RCX: 0000000000040000
RDX: ffffc90000540000 RSI: 00000000000046a0 RDI: ffff8881d9a37f58
RBP: dffffc0000000000 R08: ffffffff81006fef R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 00000000000000ca
R13: ffff8881db6f8fc0 R14: ffff8881d9a37f58 R15: 1ffff1103b6df1f8
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
RIP: 0033:0x7f7c734f2b29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7c727740f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f7c73680fa8 RCX: 00007f7c734f2b29
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f7c73680fac
RBP: 00007f7c73680fa0 R08: 00007fff205300b0 R09: 00007f7c727746c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7c73680fac
R13: 000000000000000b R14: 00007fff205043d0 R15: 00007fff205044b8