worker_thread+0xa60/0x1260 kernel/workqueue.c:2446 kthread+0x26d/0x300 kernel/kthread.c:386 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 watchdog: BUG: soft lockup - CPU#0 stuck for 226s! [kworker/u4:9:7587] Modules linked in: CPU: 0 PID: 7587 Comm: kworker/u4:9 Tainted: G W 6.1.68-syzkaller-00102-g931187cc187d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Workqueue: events_unbound toggle_allocation_gate RIP: 0010:check_kcov_mode kernel/kcov.c:184 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x36/0x60 kernel/kcov.c:207 Code: 30 fc 8c 7e 65 8b 15 31 fc 8c 7e f7 c2 00 01 ff 00 74 11 f7 c2 00 01 00 00 74 35 83 b9 6c 0b 00 00 00 74 2c 8b 91 48 0b 00 00 <83> fa 02 75 21 48 8b 91 50 0b 00 00 48 8b 32 48 8d 7e 01 8b 89 4c RSP: 0018:ffffc90005fbf830 EFLAGS: 00000246 RAX: ffffffff816bd75c RBX: 1ffff1103ee27705 RCX: ffff888135190000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90005fbf830 R08: ffffffff816bd725 R09: ffffed103ee0707b R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001 R13: 0000000800000000 R14: ffff8881f713b828 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1cda3a3680 CR3: 0000000006c0f000 CR4: 00000000003506b0 DR0: 00000000000054aa DR1: 0000000000000fff DR2: ffffffffffffbffc DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: csd_lock_wait kernel/smp.c:453 [inline] smp_call_function_many_cond+0x86c/0x930 kernel/smp.c:998 on_each_cpu_cond_mask+0x40/0x80 kernel/smp.c:1166 on_each_cpu include/linux/smp.h:71 [inline] text_poke_sync arch/x86/kernel/alternative.c:1329 [inline] text_poke_bp_batch+0x1e9/0x730 arch/x86/kernel/alternative.c:1529 text_poke_flush arch/x86/kernel/alternative.c:1720 [inline] text_poke_finish+0x1a/0x30 arch/x86/kernel/alternative.c:1727 arch_jump_label_transform_apply+0x15/0x30 arch/x86/kernel/jump_label.c:146 __jump_label_update+0x36a/0x380 kernel/jump_label.c:455 jump_label_update+0x3af/0x450 kernel/jump_label.c:801 static_key_enable_cpuslocked+0x12f/0x250 kernel/jump_label.c:177 static_key_enable+0x1a/0x30 kernel/jump_label.c:190 toggle_allocation_gate+0xbf/0x450 mm/kfence/core.c:804 process_one_work+0x73d/0xcb0 kernel/workqueue.c:2299 worker_thread+0xa60/0x1260 kernel/workqueue.c:2446 kthread+0x26d/0x300 kernel/kthread.c:386 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 1076 Comm: syz-executor.1 Tainted: G W 6.1.68-syzkaller-00102-g931187cc187d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:native_halt arch/x86/include/asm/irqflags.h:57 [inline] RIP: 0010:halt arch/x86/include/asm/irqflags.h:98 [inline] RIP: 0010:kvm_wait+0x117/0x180 arch/x86/kernel/kvm.c:1058 Code: 48 c1 e8 03 42 0f b6 04 20 84 c0 44 8b 74 24 1c 75 53 41 0f b6 45 00 44 38 f0 0f 85 63 ff ff ff 66 90 0f 00 2d aa 10 11 04 f4 54 ff ff ff fa 4c 89 e8 48 c1 e8 03 42 0f b6 04 20 84 c0 44 8b RSP: 0018:ffffc9000f10f4e0 EFLAGS: 00000046 RAX: 0000000000000003 RBX: 1ffff92001e21ea0 RCX: ffffffff84ff1d4c RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff88811ba28960 RBP: ffffc9000f10f590 R08: dffffc0000000000 R09: ffffed102374512d R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff88811ba28960 R14: 0000000000000003 R15: 1ffff92001e21ea4 FS: 00007f0de9f236c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2c421000 CR3: 000000014b446000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000009 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: pv_wait arch/x86/include/asm/paravirt.h:603 [inline] pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline] __pv_queued_spin_lock_slowpath+0x6de/0xda0 kernel/locking/qspinlock.c:511 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline] queued_spin_lock include/asm-generic/qspinlock.h:114 [inline] do_raw_spin_lock include/linux/spinlock.h:186 [inline] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:111 [inline] _raw_spin_lock_irqsave+0x1a0/0x210 kernel/locking/spinlock.c:162 trie_delete_elem+0x94/0x760 kernel/bpf/lpm_trie.c:448 bpf_prog_39de1b35ba1bfd6c+0x42/0x46 bpf_dispatcher_nop_func include/linux/bpf.h:982 [inline] __bpf_prog_run include/linux/filter.h:600 [inline] bpf_prog_run include/linux/filter.h:607 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2275 [inline] bpf_trace_run4+0x18d/0x2f0 kernel/trace/bpf_trace.c:2316 __bpf_trace_mm_page_alloc+0xbf/0xf0 include/trace/events/kmem.h:177 trace_mm_page_alloc include/trace/events/kmem.h:177 [inline] __alloc_pages+0x727/0x780 mm/page_alloc.c:5706 __alloc_pages_node include/linux/gfp.h:236 [inline] alloc_pages_node include/linux/gfp.h:259 [inline] __kmalloc_large_node+0x9e/0x1b0 mm/slab_common.c:1098 __do_kmalloc_node mm/slab_common.c:945 [inline] __kmalloc_node+0xe5/0x1e0 mm/slab_common.c:964 kmalloc_node include/linux/slab.h:579 [inline] bpf_map_kmalloc_node+0xd0/0x2c0 kernel/bpf/syscall.c:454 lpm_trie_node_alloc kernel/bpf/lpm_trie.c:288 [inline] trie_update_elem+0x1e6/0xc00 kernel/bpf/lpm_trie.c:330 bpf_map_update_value+0x23a/0x410 kernel/bpf/syscall.c:228 map_update_elem+0x500/0x680 kernel/bpf/syscall.c:1428 __sys_bpf+0x460/0x7f0 kernel/bpf/syscall.c:4960 __do_sys_bpf kernel/bpf/syscall.c:5076 [inline] __se_sys_bpf kernel/bpf/syscall.c:5074 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5074 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f0de927dda9 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:00007f0de9f230c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f0de93abf80 RCX: 00007f0de927dda9 RDX: 0000000000000020 RSI: 0000000020000200 RDI: 0000000000000002 RBP: 00007f0de92ca47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f0de93abf80 R15: 00007ffc96a18368