rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2989 jiffies s: 1833 root: 0x1/. rcu: blocking rcu_node structures (internal RCU debug): Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 4432 Comm: syz.0.31 Tainted: G W 6.1.121-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:timerqueue_getnext include/linux/timerqueue.h:36 [inline] RIP: 0010:__hrtimer_run_queues+0x223/0xe50 kernel/time/hrtimer.c:1733 Code: 89 84 24 a8 00 00 00 42 80 3c 38 00 74 08 4c 89 f7 e8 01 5f 68 00 8b 44 24 2c 48 8b 0c 24 0f b3 c8 89 44 24 2c 4c 89 74 24 40 <49> 8b 06 48 89 04 24 48 85 c0 0f 84 4b 0b 00 00 49 8d 84 1c d0 00 RSP: 0018:ffffc90000007040 EFLAGS: 00000047 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000010100 RSI: 0000000000000000 RDI: 0000000000000009 RBP: ffffc900000071a0 R08: ffffffff8179c768 R09: fffffbfff1d3608e R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880b8e2a4c0 R13: ffff8880b8e2a540 R14: ffff8880b8e2a598 R15: dffffc0000000000 FS: 00007feb0f7416c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d913ff8 CR3: 000000005ab29000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1815 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1107 [inline] __sysvec_apic_timer_interrupt+0x158/0x5b0 arch/x86/kernel/apic/apic.c:1124 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline] sysvec_apic_timer_interrupt+0x4d/0xc0 arch/x86/kernel/apic/apic.c:1118 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691 RIP: 0010:__sanitizer_cov_trace_switch+0xb/0xe0 kernel/kcov.c:332 Code: c7 44 11 08 07 00 00 00 48 89 7c 11 10 48 89 74 11 18 4c 89 44 11 20 c3 0f 1f 80 00 00 00 00 41 57 41 56 41 54 53 48 8b 46 08 <48> 83 c0 f8 48 c1 c0 3d 48 83 f8 07 0f 87 ac 00 00 00 b9 8b 00 00 RSP: 0018:ffffc900000073b8 EFLAGS: 00000246 RAX: 0000000000000008 RBX: 000000000000000a RCX: ffff88802f885940 RDX: 0000000000000100 RSI: ffffffff8e573940 RDI: 000000000000000a RBP: ffffc900000074f0 R08: ffffffff88ea4c62 R09: ffffffff88e78ad0 R10: 0000000000000003 R11: ffff88802f885940 R12: 1ffff92000000e84 R13: ffffc900000077c0 R14: ffff88801eb2c640 R15: dffffc0000000000 get_l4proto+0x96/0x6d0 net/netfilter/nf_conntrack_core.c:415 nf_conntrack_in+0x2cc/0x1d10 net/netfilter/nf_conntrack_core.c:1997 nf_hook_entry_hookfn include/linux/netfilter.h:142 [inline] nf_hook_slow+0xae/0x1e0 net/netfilter/core.c:614 nf_hook include/linux/netfilter.h:257 [inline] NF_HOOK include/linux/netfilter.h:300 [inline] ndisc_send_skb+0x1388/0x14e0 net/ipv6/ndisc.c:511 addrconf_rs_timer+0x357/0x610 net/ipv6/addrconf.c:3982 call_timer_fn+0x1ad/0x6b0 kernel/time/timer.c:1504 expire_timers kernel/time/timer.c:1549 [inline] __run_timers+0x67c/0x890 kernel/time/timer.c:1820 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1833 handle_softirqs+0x2ee/0xa40 kernel/softirq.c:571 __do_softirq kernel/softirq.c:605 [inline] invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x157/0x240 kernel/softirq.c:654 irq_exit_rcu+0x5/0x20 kernel/softirq.c:666 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline] sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691 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+0x7b/0x290 mm/kasan/generic.c:189 Code: 00 00 00 00 fc ff df 4f 8d 34 1a 4c 89 f5 4c 29 cd 48 83 fd 10 7f 26 48 85 ed 0f 84 3a 01 00 00 49 f7 d2 49 01 da 41 80 39 00 <0f> 85 c4 01 00 00 49 ff c1 49 ff c2 75 ee e9 1d 01 00 00 45 89 cf RSP: 0018:ffffc90002e87258 EFLAGS: 00000246 RAX: f2f2f200f1f1f101 RBX: 1ffff920005d0e7c RCX: ffffffff8abaa718 RDX: 0000000000000001 RSI: 0000000000000010 RDI: ffffc90002e873e0 RBP: 0000000000000002 R08: dffffc0000000000 R09: fffff520005d0e7d R10: ffffffffffffffff R11: dffffc0000000001 R12: 0000000000000001 R13: 1ffff920005d0e90 R14: fffff520005d0e7e R15: dffffc0000000000 memset+0x1f/0x40 mm/kasan/shadow.c:44 __schedule+0x98/0x4570 kernel/sched/core.c:6443 preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6870 irqentry_exit+0x53/0x80 kernel/entry/common.c:439 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691 RIP: 0010:refill_obj_stock+0x409/0x6b0 mm/memcontrol.c:3343 Code: 60 42 80 3c 2b 00 74 08 4c 89 ff e8 71 cd f8 ff f6 44 24 61 02 0f 85 b8 00 00 00 41 f7 c4 00 02 00 00 74 01 fb 48 8b 7c 24 18 <48> 85 ff 74 05 e8 dd 96 00 00 45 85 f6 74 4f 48 8b 7c 24 08 e8 7e RSP: 0018:ffffc90002e875e0 EFLAGS: 00000206 RAX: 4d801befe40c2200 RBX: 1ffff920005d0ec8 RCX: ffffffff816b123a RDX: dffffc0000000000 RSI: ffffffff8b0c0340 RDI: 0000000000000000 RBP: ffffc90002e876d0 R08: dffffc0000000000 R09: fffffbfff2249c53 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000246 R13: dffffc0000000000 R14: 0000000000000000 R15: ffffc90002e87640 memcg_slab_free_hook mm/slab.h:569 [inline] slab_free mm/slub.c:3656 [inline] kmem_cache_free+0x148/0x510 mm/slub.c:3683 anon_vma_chain_free mm/rmap.c:146 [inline] unlink_anon_vmas+0x59a/0x5e0 mm/rmap.c:446 free_pgtables+0x344/0x4f0 mm/memory.c:430 exit_mmap+0x3ab/0x980 mm/mmap.c:3248 __mmput+0x115/0x3c0 kernel/fork.c:1200 copy_process+0x2b9c/0x4060 kernel/fork.c:2533 kernel_clone+0x222/0x920 kernel/fork.c:2681 __do_sys_clone kernel/fork.c:2822 [inline] __se_sys_clone kernel/fork.c:2806 [inline] __x64_sys_clone+0x231/0x280 kernel/fork.c:2806 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7feb0e985d29 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:00007feb0f740fe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007feb0eb75fa0 RCX: 00007feb0e985d29 RDX: 0000000000000000 RSI: fffffffffffffda0 RDI: 0000000000801000 RBP: 00007feb0ea01b08 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 00007feb0eb75fa0 R15: 00007fff00cd7378