watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz.0.548:2693]
Modules linked in:
CPU: 0 PID: 2693 Comm: syz.0.548 Not tainted 5.15.167-syzkaller-02003-g5e4635681cf1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:csum_partial+0x4/0x450 arch/x86/lib/csum-partial_64.c:135
Code: d1 c9 c1 e3 08 48 01 d8 eb a7 c1 c0 08 e9 75 ff ff ff 31 c0 e9 6e ff ff ff cc cc cc cc cc cc cc cc cc cc cc cc cc 55 48 89 e5 <41> 57 41 56 41 55 41 54 53 48 83 ec 28 89 55 d0 41 89 f6 49 89 fc
RSP: 0018:ffffc90000007a10 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000010 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000010 RDI: ffff88812a21c438
RBP: ffffc90000007a10 R08: ffffffff8449d451 R09: ffffc900000078e0
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88812a21c438
R13: ffff88810edc47f0 R14: ffff88810edc4780 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000006a0f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 ndisc_send_skb+0x33a/0xc90 net/ipv6/ndisc.c:502
 ndisc_send_rs+0x532/0x6a0 net/ipv6/ndisc.c:705
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3979
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1457
 expire_timers kernel/time/timer.c:1502 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1773
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1786
 handle_softirqs+0x25e/0x5c0 kernel/softirq.c:565
 __do_softirq kernel/softirq.c:603 [inline]
 invoke_softirq kernel/softirq.c:425 [inline]
 __irq_exit_rcu+0x52/0xf0 kernel/softirq.c:652
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:664
 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1096
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:finish_task_switch+0x16f/0x7b0 kernel/sched/core.c:5024
Code: 74 08 4c 89 ff e8 b1 6c 65 00 49 8b 1f 48 85 db 4c 8b 6d c0 0f 85 ce 00 00 00 4c 89 e7 e8 e9 b3 99 03 fb 49 8d 9d 38 0b 00 00 <48> 89 d8 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df 42 0f b6 04 30
RSP: 0018:ffffc90000d4f420 EFLAGS: 00000282
RAX: 0000000080000001 RBX: ffff8881142bda38 RCX: 0000000000000002
RDX: 0000000040000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc90000d4f470 R08: ffffffff8191f919 R09: fffffbfff0e53363
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f70378c0
R13: ffff8881142bcf00 R14: 1ffff1103ee07081 R15: ffff8881f7038408
 context_switch kernel/sched/core.c:5155 [inline]
 __schedule+0xcd4/0x1590 kernel/sched/core.c:6512
 preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:6916
 irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:398
 irqentry_exit+0x30/0x40 kernel/entry/common.c:432
 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1096
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:85 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:102 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:128 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x82/0x2a0 mm/kasan/generic.c:189
Code: 00 00 00 00 fc ff df 4f 8d 34 1a 4d 89 f5 4d 29 cd 49 83 fd 10 7f 26 4d 85 ed 0f 84 44 01 00 00 49 f7 d2 4d 01 e2 41 80 39 00 <0f> 85 d2 01 00 00 49 ff c1 49 ff c2 75 ee e9 27 01 00 00 45 89 cf
RSP: 0018:ffffc90000d4f708 EFLAGS: 00000246
RAX: ffffffff81abe101 RBX: 000000000001ffff RCX: ffffffff81abe10b
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff88811bfb21e8
RBP: ffffc90000d4f730 R08: dffffc0000000000 R09: ffffed10237f643d
R10: ffffffffffffffff R11: dffffc0000000001 R12: 1ffff110237f643d
R13: 0000000000000001 R14: ffffed10237f643e R15: ffff88811bfb21e8
 __kasan_check_write+0x14/0x20 mm/kasan/shadow.c:37
 instrument_atomic_write include/linux/instrumented.h:86 [inline]
 native_ptep_get_and_clear arch/x86/include/asm/pgtable_64.h:94 [inline]
 ptep_get_and_clear arch/x86/include/asm/pgtable.h:1051 [inline]
 vunmap_pte_range mm/vmalloc.c:338 [inline]
 vunmap_pmd_range mm/vmalloc.c:363 [inline]
 vunmap_pud_range mm/vmalloc.c:388 [inline]
 vunmap_p4d_range mm/vmalloc.c:411 [inline]
 vunmap_range_noflush+0x41b/0x550 mm/vmalloc.c:442
 free_unmap_vmap_area mm/vmalloc.c:1785 [inline]
 remove_vm_area+0x1d1/0x200 mm/vmalloc.c:2544
 vm_remove_mappings mm/vmalloc.c:2573 [inline]
 __vunmap+0x24b/0x8f0 mm/vmalloc.c:2642
 __vfree mm/vmalloc.c:2700 [inline]
 vfree+0x7f/0xb0 mm/vmalloc.c:2731
 kcov_put kernel/kcov.c:417 [inline]
 kcov_close+0x2b/0x50 kernel/kcov.c:519
 __fput+0x228/0x8c0 fs/file_table.c:280
 ____fput+0x15/0x20 fs/file_table.c:308
 task_work_run+0x129/0x190 kernel/task_work.c:188
 exit_task_work include/linux/task_work.h:33 [inline]
 do_exit+0xc48/0x2ca0 kernel/exit.c:880
 do_group_exit+0x141/0x310 kernel/exit.c:1002
 get_signal+0x7a3/0x1630 kernel/signal.c:2904
 arch_do_signal_or_restart+0xbd/0x1680 arch/x86/kernel/signal.c:867
 handle_signal_work kernel/entry/common.c:154 [inline]
 exit_to_user_mode_loop+0xa0/0xe0 kernel/entry/common.c:178
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:214
 irqentry_exit_to_user_mode+0x9/0x10 kernel/entry/common.c:320
 irqentry_exit+0x12/0x40 kernel/entry/common.c:411
 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1096
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0033:0x7fcbf2fe6ff9
Code: Unable to access opcode bytes at RIP 0x7fcbf2fe6fcf.
RSP: 002b:00007fcbf1c1e0e8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007fcbf319f138 RCX: 00007fcbf2fe6ff9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fcbf319f138
RBP: 00007fcbf319f130 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcbf319f13c
R13: 0000000000000000 R14: 00007fff3cee4ec0 R15: 00007fff3cee4fa8
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 3802 Comm: syz-executor Not tainted 5.15.167-syzkaller-02003-g5e4635681cf1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:should_fail_usercopy+0x1/0x20 lib/fault-inject-usercopy.c:36
Code: 00 00 00 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 a4 bc 30 ff 4c 89 33 31 c0 5b 41 5e 5d c3 cc cc cc cc cc cc cc cc cc cc 55 <48> 89 e5 e8 07 6a ee fe be 01 00 00 00 48 c7 c7 40 77 d9 86 e8 d6
RSP: 0018:ffffc90001147d18 EFLAGS: 00000202
RAX: ffffffff8265ae4b RBX: 00007ffcfd5e8550 RCX: ffff88810de493c0
RDX: 0000000000000004 RSI: 00007ffcfd5e8550 RDI: ffffc90001147dc0
RBP: ffffc90001147d50 R08: dffffc0000000000 R09: ffffc90001147dc0
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000018
R13: dffffc0000000000 R14: ffffc90001147dc0 R15: 00007ffcfd5e8550
FS:  000055557a897500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000001295a8000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 copy_from_user include/linux/uaccess.h:192 [inline]
 restore_altstack+0x9a/0x400 kernel/signal.c:4254
 __do_sys_rt_sigreturn+0x160/0x1e0 arch/x86/kernel/signal.c:677
 x64_sys_call+0x91/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:16
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f2d892d0213
Code: 00 00 0f 1f 44 00 00 31 c9 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 80 3d 31 83 19 00 00 49 89 ca 74 14 b8 3d 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 5d c3 0f 1f 40 00 48 83 ec 28 89 54 24 14 48
RSP: 002b:00007ffcfd5e8af8 EFLAGS: 00000202
RAX: 0000000000000ee4 RBX: 0000000000000ee4 RCX: 00007f2d892d0213
RDX: 0000000040000000 RSI: 00007ffcfd5e8b0c RDI: 00000000ffffffff
RBP: 00007ffcfd5e8b0c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000000c
R13: 0000000000000003 R14: 0000000000000009 R15: 0000000000000000
 </TASK>