watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz-executor.3:6097]
Modules linked in:
CPU: 1 PID: 6097 Comm: syz-executor.3 Not tainted 5.4.274-syzkaller-00002-g6f97bd951d82 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:unwind_next_frame+0x77e/0x1ea0 arch/x86/kernel/unwind_orc.c:461
Code: b6 04 38 84 c0 74 6f 89 d9 80 e1 07 38 c1 7c 66 be 02 00 00 00 48 89 df 48 89 d3 e8 2c 5c 64 00 e9 57 15 00 00 48 8b 44 24 60 <42> 80 3c 38 00 74 0e 4c 89 f7 48 89 d3 e8 50 5b 64 00 48 89 da 49
RSP: 0000:ffff8881f6f09560 EFLAGS: 00000297 ORIG_RAX: ffffffffffffff13
RAX: 1ffff1103ede1313 RBX: ffff8881f6f09898 RCX: ffffffff865625cc
RDX: ffffffff86838588 RSI: ffffffff86838584 RDI: 0000000000000001
RBP: ffff8881f6f09850 R08: 0000000000000001 R09: ffff8881f6f098b0
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffffffff0d070b1
R13: ffffffff86838584 R14: ffff8881f6f09898 R15: dffffc0000000000
FS:  00007fdf1cbb16c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c322000 CR3: 00000001e637c000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 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
 inet_frag_rbtree_purge net/ipv4/inet_fragment.c:246 [inline]
 inet_frag_destroy+0x134/0x230 net/ipv4/inet_fragment.c:266
 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:exit_to_usermode_loop+0x20/0x1a0 arch/x86/entry/common.c:148
Code: 2e 0f 1f 84 00 00 00 00 00 90 41 57 41 56 41 54 53 41 89 f7 49 89 fe 49 bc 00 00 00 00 00 fc ff df e8 a4 d2 63 00 fb 44 89 fe <83> e6 08 31 ff e8 86 d5 63 00 44 89 f8 83 e0 08 75 07 e8 89 d2 63
RSP: 0000:ffff8881d286fef0 EFLAGS: 00000283 ORIG_RAX: ffffffffffffff13
RAX: ffffffff8100697c RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc9000234f000 RSI: 0000000000000008 RDI: 000000000000b87a
RBP: 0000000000000008 R08: ffffffff810067f2 R09: ffffed103c89e3f1
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff1103c89e3f0 R14: ffff8881d286ff58 R15: 0000000000000008
 prepare_exit_to_usermode+0x199/0x200 arch/x86/entry/common.c:194
 ret_from_intr+0x1c/0x1c
RIP: 0033:0x7fdf1d836f29
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fdf1cbb10c8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 00007fdf1d96df80 RCX: 00007fdf1d836f29
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000003
RBP: 00007fdf1d8a6074 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fdf1d96df80 R15: 00007ffdb46725d8
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5809 Comm: syz-executor.4 Not tainted 5.4.274-syzkaller-00002-g6f97bd951d82 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:paravirt_sched_clock arch/x86/include/asm/paravirt.h:22 [inline]
RIP: 0010:sched_clock+0x31/0x40 arch/x86/kernel/tsc.c:245
Code: 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 0c 48 c7 c7 40 3b eb 85 e8 c9 c3 6b 00 48 83 3d d1 dd c2 04 00 74 08 <e8> fa f4 06 00 66 90 c3 0f 0b 0f 1f 44 00 00 48 c7 c0 40 3b eb 85
RSP: 0018:ffff8881f6e08bc8 EFLAGS: 00000082
RAX: 1ffffffff0bd6768 RBX: ffffffff85631f10 RCX: dffffc0000000000
RDX: 0000000000010504 RSI: 0000000000010504 RDI: 0000000000000000
RBP: ffff8881e676cec0 R08: ffffffff82316ca1 R09: ffffed103c755063
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8881f6e29170
FS:  00007fd43a37e6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd43b003eff CR3: 00000001ee132000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 sched_clock_cpu+0x18/0x3a0 kernel/sched/clock.c:371
 irqtime_account_irq+0x6d/0x1b0 kernel/sched/cputime.c:61
 account_irq_exit_time include/linux/vtime.h:114 [inline]
 irq_exit+0x19/0x1c0 kernel/softirq.c:410
 irq_work_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:865
RIP: 0010:__read_once_size_nocheck+0x3/0x10 include/linux/compiler.h:286
Code: 80 e1 07 38 c1 0f 8c ae fc ff ff 48 89 df e8 d4 37 64 00 48 ba 00 00 00 00 00 fc ff df e9 97 fc ff ff e8 e0 07 0b 00 48 8b 07 <48> 89 06 c3 66 0f 1f 84 00 00 00 00 00 be 17 00 00 00 48 c7 c7 a0
RSP: 0018:ffff8881f6e08d58 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff09
RAX: ffff8881ee3d78b0 RBX: 1ffff1103edc11b4 RCX: dffffc0000000000
RDX: ffff8881f6e09160 RSI: ffff8881f6e08da0 RDI: ffff8881ee3d7790
RBP: ffff8881f6e08e10 R08: dffffc0000000000 R09: ffff8881f6e09170
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff1103edc11b0 R14: ffff8881f6e08da0 R15: ffff8881ee3d7790
 deref_stack_reg+0x15c/0x1f0 arch/x86/kernel/unwind_orc.c:350
 unwind_next_frame+0x1681/0x1ea0 arch/x86/kernel/unwind_orc.c:579
 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]
 consume_skb+0xa5/0x2a0 net/core/skbuff.c:849
 netlink_broadcast_filtered+0x115f/0x1280 net/netlink/af_netlink.c:1531
 netlink_broadcast net/netlink/af_netlink.c:1553 [inline]
 nlmsg_multicast include/net/netlink.h:968 [inline]
 nlmsg_notify+0xf7/0x1b0 net/netlink/af_netlink.c:2524
 neigh_cleanup_and_release+0x2b/0x210 net/core/neighbour.c:102
 neigh_del net/core/neighbour.c:198 [inline]
 neigh_remove_one+0x350/0x3b0 net/core/neighbour.c:219
 neigh_forced_gc net/core/neighbour.c:252 [inline]
 neigh_alloc net/core/neighbour.c:430 [inline]
 ___neigh_create+0x3b3/0x1ae0 net/core/neighbour.c:592
 ip6_finish_output2+0x965/0x18e0 net/ipv6/ip6_output.c:141
 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:ffff8881ee3d7230 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000001 RBX: ffff8881f6e57b40 RCX: dffffc0000000000
RDX: 0000000040000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffff8881ee3d7290 R08: ffffffff81799989 R09: fffffbfff0c96e5b
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f6e57b40
R13: ffff8881e676cec0 R14: dffffc0000000000 R15: 0000000000000000
 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:PageSwapCache include/linux/page-flags.h:385 [inline]
RIP: 0010:free_swap_cache+0xd8/0x210 mm/swap_state.c:268
Code: 48 89 df e8 5a 5b 02 00 48 8b 1b 41 bd 00 00 08 00 be 00 00 08 00 48 21 de 31 ff e8 92 79 d2 ff 49 21 dd 75 0a e8 28 76 d2 ff <e9> e2 00 00 00 49 89 ed 4c 89 e7 be 08 00 00 00 e8 83 2e 02 00 4c
RSP: 0018:ffff8881ee3d74f8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff02
RAX: ffffffff8191c5f8 RBX: 8000000000000008 RCX: ffff8881e676cec0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffea00078c5c00 R08: ffffffff8191c5ee R09: fffff94000f18b81
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffea00078c5c00
R13: 0000000000000000 R14: ffffea00078c5c08 R15: 1ffffd4000f18b81
 free_pages_and_swap_cache+0x5e/0x90 mm/swap_state.c:296
 tlb_batch_pages_flush mm/mmu_gather.c:49 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:189 [inline]
 tlb_flush_mmu+0xc8/0x170 mm/mmu_gather.c:196
 zap_pte_range mm/memory.c:1173 [inline]
 zap_pmd_range mm/memory.c:1222 [inline]
 zap_pud_range mm/memory.c:1251 [inline]
 zap_p4d_range mm/memory.c:1272 [inline]
 unmap_page_range+0x1d29/0x2620 mm/memory.c:1293
 unmap_single_vma mm/memory.c:1338 [inline]
 unmap_vmas+0x355/0x4b0 mm/memory.c:1370
 exit_mmap+0x2bc/0x520 mm/mmap.c:3191
 __mmput+0x8e/0x2c0 kernel/fork.c:1101
 exit_mm kernel/exit.c:536 [inline]
 do_exit+0xc08/0x2bc0 kernel/exit.c:846
 do_group_exit+0x138/0x300 kernel/exit.c:982
 get_signal+0xdb1/0x1440 kernel/signal.c:2735
 do_signal+0xb0/0x11f0 arch/x86/kernel/signal.c:809
 exit_to_usermode_loop+0xc0/0x1a0 arch/x86/entry/common.c:159
 prepare_exit_to_usermode+0x199/0x200 arch/x86/entry/common.c:194
 ret_from_intr+0x1c/0x1c
RIP: 0033:0x7fd43b003f29
Code: Bad RIP value.
RSP: 002b:00007fd43a37e0c8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 00007fd43b13af80 RCX: 00007fd43b003f29
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000003
RBP: 00007fd43b073074 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fd43b13af80 R15: 00007fffa458c408