watchdog: BUG: soft lockup - CPU#1 stuck for 144s! [syz.4.377:7920] Modules linked in: irq event stamp: 10118827 hardirqs last enabled at (10118826): [] irqentry_exit+0x74/0x90 kernel/entry/common.c:214 hardirqs last disabled at (10118827): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1052 softirqs last enabled at (9570334): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last enabled at (9570334): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last enabled at (9570334): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:723 softirqs last disabled at (9570339): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last disabled at (9570339): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last disabled at (9570339): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:723 CPU: 1 UID: 0 PID: 7920 Comm: syz.4.377 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:kasan_check_range+0xd/0x2c0 mm/kasan/generic.c:199 Code: ff ff ff eb e1 cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6 55 41 57 41 56 41 55 41 54 <53> b0 01 48 85 f6 0f 84 ba 01 00 00 4c 8d 04 37 49 39 f8 0f 82 82 RSP: 0018:ffffc90000a07f50 EFLAGS: 00000246 RAX: 000000000000002c RBX: 0000000000000008 RCX: ffffffff81c9bad5 RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffe8ffffdc5024 RBP: 0000000000000000 R08: 0000000000000002 R09: 0000000000000000 R10: ffffc90000a082c8 R11: fffff52000141065 R12: ffffffff8d92cdd8 R13: dffffc0000000000 R14: ffffe8ffffdc5024 R15: ffffffff8d92cdd8 FS: 00007f50334306c0(0000) GS:ffff88812623d000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c379f91 CR3: 000000005dd5e000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __asan_memset+0x22/0x50 mm/kasan/shadow.c:84 perf_trace_buf_alloc+0x1d5/0x2a0 kernel/trace/trace_event_perf.c:419 do_perf_trace_lock_acquire include/trace/events/lock.h:24 [inline] perf_trace_lock_acquire+0x196/0x410 include/trace/events/lock.h:24 __do_trace_lock_acquire include/trace/events/lock.h:24 [inline] trace_lock_acquire include/trace/events/lock.h:24 [inline] lock_acquire+0x311/0x360 kernel/locking/lockdep.c:5831 rcu_lock_acquire include/linux/rcupdate.h:331 [inline] rcu_read_lock include/linux/rcupdate.h:867 [inline] class_rcu_constructor include/linux/rcupdate.h:1195 [inline] unwind_next_frame+0xc2/0x2390 arch/x86/kernel/unwind_orc.c:479 __unwind_start+0x5b9/0x760 arch/x86/kernel/unwind_orc.c:758 unwind_start arch/x86/include/asm/unwind.h:64 [inline] arch_stack_walk+0xe4/0x150 arch/x86/kernel/stacktrace.c:24 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:56 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:77 unpoison_slab_object mm/kasan/common.c:342 [inline] __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:368 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4970 [inline] slab_alloc_node mm/slub.c:5280 [inline] kmem_cache_alloc_noprof+0x367/0x6e0 mm/slub.c:5287 skb_clone+0x212/0x3a0 net/core/skbuff.c:2050 packet_rcv+0x65b/0x1730 net/packet/af_packet.c:2164 deliver_skb net/core/dev.c:2472 [inline] __netif_receive_skb_core+0x7a2/0x4380 net/core/dev.c:5914 __netif_receive_skb_one_core net/core/dev.c:6077 [inline] __netif_receive_skb+0x72/0x380 net/core/dev.c:6192 process_backlog+0x60e/0x14f0 net/core/dev.c:6544 __napi_poll+0xc7/0x360 net/core/dev.c:7594 napi_poll net/core/dev.c:7657 [inline] net_rx_action+0x5f7/0xdf0 net/core/dev.c:7784 handle_softirqs+0x286/0x870 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:723 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1052 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1052 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:schedule_debug kernel/sched/core.c:5885 [inline] RIP: 0010:__schedule+0x1b3/0x4cc0 kernel/sched/core.c:6806 Code: f6 48 8b 1b 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 e4 a2 de f6 48 81 3b 9d 6e ac 57 <0f> 85 b7 18 00 00 45 85 ed 7f 54 49 8d 5e 18 48 89 d8 48 c1 e8 03 RSP: 0018:ffffc9000be57740 EFLAGS: 00000246 RAX: 1ffff920017ca000 RBX: ffffc9000be50000 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: ffffffff8bbf0740 RDI: ffffffff8bbf0700 RBP: ffffc9000be57950 R08: ffffffff8f7cdc77 R09: 1ffffffff1ef9b8e R10: dffffc0000000000 R11: fffffbfff1ef9b8f R12: ffff88812623d000 R13: 0000000000000001 R14: ffff888057f59e40 R15: 1ffff11017127568 preempt_schedule_common+0x83/0xd0 kernel/sched/core.c:7113 preempt_schedule+0xae/0xc0 kernel/sched/core.c:7137 preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12 consume_obj_stock mm/memcontrol.c:2938 [inline] obj_cgroup_charge_account+0x3f4/0x660 mm/memcontrol.c:3070 __memcg_slab_post_alloc_hook+0x3db/0x7d0 mm/memcontrol.c:3188 memcg_slab_post_alloc_hook mm/slub.c:2338 [inline] slab_post_alloc_hook mm/slub.c:4981 [inline] slab_alloc_node mm/slub.c:5280 [inline] __do_kmalloc_node mm/slub.c:5641 [inline] __kmalloc_node_noprof+0x5eb/0x800 mm/slub.c:5648 kmalloc_node_noprof include/linux/slab.h:987 [inline] __bpf_map_area_alloc kernel/bpf/syscall.c:395 [inline] bpf_map_area_alloc+0x64/0x180 kernel/bpf/syscall.c:408 htab_map_alloc+0x3d1/0xc70 kernel/bpf/hashtab.c:532 map_create+0xaa6/0x1640 kernel/bpf/syscall.c:1512 __sys_bpf+0x5f0/0x860 kernel/bpf/syscall.c:6131 __do_sys_bpf kernel/bpf/syscall.c:6259 [inline] __se_sys_bpf kernel/bpf/syscall.c:6257 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:6257 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f503258f6c9 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:00007f5033430038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f50327e5fa0 RCX: 00007f503258f6c9 RDX: 0000000000000050 RSI: 0000200000000500 RDI: 0000000000000000 RBP: 00007f5032611f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f50327e6038 R14: 00007f50327e5fa0 R15: 00007ffd40911628 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 7922 Comm: syz.1.379 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:sched_clock_cpu+0x7b/0x430 kernel/sched/clock.c:412 Code: 50 b0 c2 99 81 4c 8d 7c 24 40 49 c1 ef 03 48 b8 f1 f1 f1 f1 00 f3 f3 f3 4b 89 04 2f 66 90 e8 2c 6c ce ff 48 03 05 ad 19 e3 0d <48> c7 44 24 40 0e 36 e0 45 4b c7 04 2f 00 00 00 00 65 48 8b 0d dc RSP: 0018:ffffc90000007280 EFLAGS: 00000017 RAX: 00000057c4f38317 RBX: ffff8880b8823e70 RCX: ffff8880293f8000 RDX: 0000000000010100 RSI: 0000000000000000 RDI: 0000000000000002 RBP: ffffc90000007358 R08: ffffffff8f7cdc77 R09: 1ffffffff1ef9b8e R10: dffffc0000000000 R11: fffffbfff1ef9b8f R12: dffffc0000000000 R13: dffffc0000000000 R14: ffffc900000072e0 R15: 1ffff92000000e58 FS: 00007f407ae576c0(0000) GS:ffff88812613d000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055558b7335c8 CR3: 000000007fbbe000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: irqtime_account_irq+0x6e/0x1c0 kernel/sched/cputime.c:67 account_hardirq_exit include/linux/vtime.h:154 [inline] __irq_exit_rcu+0x8d/0x1f0 kernel/softirq.c:720 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1052 [inline] sysvec_apic_timer_interrupt+0x57/0xc0 arch/x86/kernel/apic/apic.c:1052 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:orc_ip arch/x86/kernel/unwind_orc.c:80 [inline] RIP: 0010:__orc_find arch/x86/kernel/unwind_orc.c:102 [inline] RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:227 [inline] RIP: 0010:unwind_next_frame+0x130e/0x2390 arch/x86/kernel/unwind_orc.c:494 Code: c1 e8 3f 48 01 c8 48 83 e0 fe 4c 8d 3c 45 00 00 00 00 49 01 ef 4c 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 <84> c0 75 27 49 63 07 4c 01 f8 49 8d 4f 04 4c 39 e0 48 0f 46 e9 49 RSP: 0018:ffffc900000074f8 EFLAGS: 00000a06 RAX: 0000000000000000 RBX: ffffffff8f924ac8 RCX: dffffc0000000000 RDX: ffffffff8f924a9c RSI: ffffffff900daa90 RDI: ffffffff8bbf0700 RBP: ffffffff8f924a9c R08: 000000000000000c R09: ffffffff81739d25 R10: dffffc0000000000 R11: fffff91ffff98a05 R12: ffffffff819d651c R13: ffffffff8f924a9c R14: ffffc900000075c8 R15: ffffffff8f924ab0 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:56 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:77 unpoison_slab_object mm/kasan/common.c:342 [inline] __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:368 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4970 [inline] slab_alloc_node mm/slub.c:5280 [inline] kmem_cache_alloc_node_noprof+0x433/0x710 mm/slub.c:5332 __alloc_skb+0x112/0x2d0 net/core/skbuff.c:660 alloc_skb include/linux/skbuff.h:1383 [inline] ndisc_alloc_skb+0x9f/0x480 net/ipv6/ndisc.c:420 ndisc_send_rs+0x2b5/0x630 net/ipv6/ndisc.c:706 addrconf_rs_timer+0x369/0x670 net/ipv6/addrconf.c:4037 call_timer_fn+0x17e/0x5f0 kernel/time/timer.c:1747 expire_timers kernel/time/timer.c:1798 [inline] __run_timers kernel/time/timer.c:2372 [inline] __run_timer_base+0x61a/0x860 kernel/time/timer.c:2384 run_timer_base kernel/time/timer.c:2393 [inline] run_timer_softirq+0xb7/0x180 kernel/time/timer.c:2403 handle_softirqs+0x286/0x870 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:723 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1052 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1052 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:__preempt_count_dec_and_test arch/x86/include/asm/preempt.h:-1 [inline] RIP: 0010:class_preempt_notrace_destructor include/linux/preempt.h:471 [inline] RIP: 0010:__do_trace_lock_acquire include/trace/events/lock.h:24 [inline] RIP: 0010:trace_lock_acquire include/trace/events/lock.h:24 [inline] RIP: 0010:lock_acquire+0x31c/0x360 kernel/locking/lockdep.c:5831 Code: 08 8b 4c 24 04 4c 8b 44 24 20 4c 8b 4c 24 28 ff b4 24 98 00 00 00 ff 74 24 18 e8 9f 44 ff ff 48 83 c4 10 65 ff 0d 14 cb d0 10 <8b> 5c 24 08 4c 8b 74 24 10 4c 8b 7c 24 28 4c 8b 64 24 20 48 8b ac RSP: 0018:ffffc900053cef60 EFLAGS: 00000282 RAX: ed0b9546175d0400 RBX: 0000000000000000 RCX: 0000000000080000 RDX: ffffc9001853a000 RSI: 00000000000143fd RDI: 00000000000143fe RBP: ffffffff81cb8407 R08: 0000000000000002 R09: 0000000000000000 R10: dffffc0000000000 R11: fffff91ffff98205 R12: 0000000000000002 R13: ffffffff8df3d620 R14: 0000000000000000 R15: 0000000000000000 rcu_lock_acquire include/linux/rcupdate.h:331 [inline] rcu_read_lock include/linux/rcupdate.h:867 [inline] trace_call_bpf+0xe8/0xb50 kernel/trace/bpf_trace.c:-1 perf_trace_run_bpf_submit+0x78/0x170 kernel/events/core.c:10931 do_perf_trace_lock_acquire include/trace/events/lock.h:24 [inline] perf_trace_lock_acquire+0x335/0x410 include/trace/events/lock.h:24 __do_trace_lock_acquire include/trace/events/lock.h:24 [inline] trace_lock_acquire include/trace/events/lock.h:24 [inline] lock_acquire+0x311/0x360 kernel/locking/lockdep.c:5831 rcu_lock_acquire include/linux/rcupdate.h:331 [inline] rcu_read_lock include/linux/rcupdate.h:867 [inline] class_rcu_constructor include/linux/rcupdate.h:1195 [inline] unwind_next_frame+0xc2/0x2390 arch/x86/kernel/unwind_orc.c:479 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 save_stack+0xf5/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x71/0x1f0 mm/page_owner.c:311 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2906 __slab_free+0x2e7/0x390 mm/slub.c:5962 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4970 [inline] slab_alloc_node mm/slub.c:5280 [inline] __do_kmalloc_node mm/slub.c:5641 [inline] __kmalloc_node_noprof+0x51e/0x800 mm/slub.c:5648 kmalloc_node_noprof include/linux/slab.h:987 [inline] __vmalloc_area_node mm/vmalloc.c:3702 [inline] __vmalloc_node_range_noprof+0x5bb/0x12d0 mm/vmalloc.c:3897 __vmalloc_node_noprof mm/vmalloc.c:3960 [inline] __vmalloc_noprof+0xb1/0xf0 mm/vmalloc.c:3974 bpf_prog_alloc_no_stats+0x4a/0x4d0 kernel/bpf/core.c:106 bpf_prog_alloc+0x3c/0x1a0 kernel/bpf/core.c:153 bpf_prog_load+0x735/0x19e0 kernel/bpf/syscall.c:2981 __sys_bpf+0x507/0x860 kernel/bpf/syscall.c:6149 __do_sys_bpf kernel/bpf/syscall.c:6259 [inline] __se_sys_bpf kernel/bpf/syscall.c:6257 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:6257 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f4079f8f6c9 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:00007f407ae57038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f407a1e5fa0 RCX: 00007f4079f8f6c9 RDX: 0000000000000090 RSI: 0000200000000140 RDI: 0000000000000005 RBP: 00007f407a011f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f407a1e6038 R14: 00007f407a1e5fa0 R15: 00007ffdc761ee98