watchdog: BUG: soft lockup - CPU#1 stuck for 144s! [syz.6.936:8430] Modules linked in: irq event stamp: 15266933 hardirqs last enabled at (15266932): [] irqentry_exit+0x63/0x90 kernel/entry/common.c:357 hardirqs last disabled at (15266933): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1049 softirqs last enabled at (15253256): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last enabled at (15253256): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last enabled at (15253256): [] __irq_exit_rcu+0xfb/0x220 kernel/softirq.c:680 softirqs last disabled at (15253259): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last disabled at (15253259): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last disabled at (15253259): [] __irq_exit_rcu+0xfb/0x220 kernel/softirq.c:680 CPU: 1 UID: 0 PID: 8430 Comm: syz.6.936 Not tainted 6.14.0-syzkaller-g2f41503d6476 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:in_gate_area_no_mm+0x4/0x60 arch/x86/entry/vsyscall/vsyscall_64.c:320 Code: 97 c4 44 89 e0 5b 41 5c 41 5e 41 5f c3 cc cc cc cc 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 <55> 53 48 89 fb e8 32 d1 98 00 8b 2d ec 69 4e 0d bf 02 00 00 00 89 RSP: 0018:ffffc90000a08688 EFLAGS: 00000207 RAX: ffffffff81000000 RBX: 00007f6060d8d169 RCX: 0000000000000002 RDX: ffffffff90e312c6 RSI: ffffffff8e4fd4c5 RDI: 00007f6060d8d169 RBP: 0000000000000001 R08: 0000000000000022 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888028475a00 R13: ffffffff81aee970 R14: dffffc0000000000 R15: 1ffff920001410e5 FS: 00007f6061bb96c0(0000) GS:ffff888125096000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000006b36e000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: is_kernel_text include/linux/kallsyms.h:31 [inline] core_kernel_text kernel/extable.c:68 [inline] kernel_text_address+0x30/0xe0 kernel/extable.c:99 __kernel_text_address+0xd/0x40 kernel/extable.c:79 unwind_get_return_address+0x4d/0x90 arch/x86/kernel/unwind_orc.c:369 arch_stack_walk+0xff/0x150 arch/x86/kernel/stacktrace.c:26 stack_trace_save+0x11a/0x1d0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:576 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x59/0x70 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:233 [inline] slab_free_hook mm/slub.c:2389 [inline] slab_free mm/slub.c:4646 [inline] kmem_cache_free+0x197/0x410 mm/slub.c:4748 mac80211_hwsim_beacon_tx+0x3c4/0x860 drivers/net/wireless/virtual/mac80211_hwsim.c:2317 __iterate_interfaces+0x297/0x570 net/mac80211/util.c:761 ieee80211_iterate_active_interfaces_atomic+0xd8/0x170 net/mac80211/util.c:797 mac80211_hwsim_beacon+0xd4/0x1f0 drivers/net/wireless/virtual/mac80211_hwsim.c:2347 __run_hrtimer kernel/time/hrtimer.c:1791 [inline] __hrtimer_run_queues+0x5a6/0xd40 kernel/time/hrtimer.c:1855 hrtimer_run_softirq+0x19a/0x2c0 kernel/time/hrtimer.c:1872 handle_softirqs+0x2d6/0x9b0 kernel/softirq.c:579 __do_softirq kernel/softirq.c:613 [inline] invoke_softirq kernel/softirq.c:453 [inline] __irq_exit_rcu+0xfb/0x220 kernel/softirq.c:680 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline] sysvec_irq_work+0xa3/0xc0 arch/x86/kernel/irq_work.c:17 asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:738 RIP: 0010:schedule_debug kernel/sched/core.c:5948 [inline] RIP: 0010:__schedule+0x1be/0x5240 kernel/sched/core.c:6666 Code: 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 1a 21 fc f5 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 f8 20 fc f5 48 81 3b 9d 6e ac 57 0f 85 3a 23 00 RSP: 0018:ffffc9000b9c7800 EFLAGS: 00000246 RAX: 1ffff92001738000 RBX: ffffc9000b9c0000 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: ffffffff8ca1b680 RDI: ffffffff8ca1b640 RBP: ffffc9000b9c7a30 R08: ffffffff905fdf77 R09: 1ffffffff20bfbee R10: dffffc0000000000 R11: fffffbfff20bfbef R12: ffff888125096000 R13: 1ffff92001738f48 R14: ffff8880b873a600 R15: ffffc9000b9c7a60 preempt_schedule_irq+0xfe/0x1c0 kernel/sched/core.c:7090 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:do_slab_free mm/slub.c:4597 [inline] RIP: 0010:___cache_free+0x63/0xe0 mm/slub.c:4704 Code: 00 48 01 d0 66 90 0f b6 48 33 c1 e1 18 45 31 c0 81 f9 00 00 00 f5 4c 0f 44 c0 65 48 8b 05 0d 88 46 11 49 8b 0f 48 8b 54 08 08 <4c> 39 44 08 10 75 24 48 8b 04 01 41 8b 4f 28 48 89 04 19 48 8d 4a RSP: 0018:ffffc9000b9c7bc0 EFLAGS: 00000246 RAX: ffff888125096000 RBX: ffff88802ecd3280 RCX: ffffffff936ab930 RDX: 00000000000e4011 RSI: 0000000000004bef RDI: 0000000000004bf0 RBP: 0000000000000000 R08: ffffea0000bb34c0 R09: 1ffffffff20bfbee R10: dffffc0000000000 R11: fffffbfff20bfbef R12: ffff88802ecd3280 R13: ffffea0000000000 R14: ffffffff822d9d2f R15: ffff888141a968c0 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4151 [inline] slab_alloc_node mm/slub.c:4200 [inline] kmem_cache_alloc_noprof+0x1e1/0x390 mm/slub.c:4207 lsm_inode_alloc security/security.c:755 [inline] security_inode_alloc+0x37/0x310 security/security.c:1697 inode_init_always_gfp+0xa0f/0xd90 fs/inode.c:306 inode_init_always include/linux/fs.h:3226 [inline] alloc_inode+0xa3/0x1b0 fs/inode.c:353 new_inode_pseudo include/linux/fs.h:3309 [inline] sock_alloc net/socket.c:622 [inline] __sock_create+0x127/0xa30 net/socket.c:1505 sock_create net/socket.c:1599 [inline] __sys_socket_create net/socket.c:1636 [inline] __sys_socket+0x14d/0x3c0 net/socket.c:1683 __do_sys_socket net/socket.c:1697 [inline] __se_sys_socket net/socket.c:1695 [inline] __x64_sys_socket+0x7a/0x90 net/socket.c:1695 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6060d8d169 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:00007f6061bb9038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007f6060fa5fa0 RCX: 00007f6060d8d169 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000010 RBP: 00007f6060e0e990 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f6060fa5fa0 R15: 00007ffffd53b8a8 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 53 Comm: kworker/u8:3 Not tainted 6.14.0-syzkaller-g2f41503d6476 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Workqueue: events_unbound toggle_allocation_gate RIP: 0010:csd_lock_wait kernel/smp.c:340 [inline] RIP: 0010:smp_call_function_many_cond+0x1bb6/0x2d40 kernel/smp.c:885 Code: 89 e6 83 e6 01 31 ff e8 c8 e2 0b 00 41 83 e4 01 4c 8b 64 24 68 75 07 e8 78 de 0b 00 eb 41 f3 90 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 03 84 c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8 53 de 0b RSP: 0018:ffffc90000bf7640 EFLAGS: 00000293 RAX: dffffc0000000000 RBX: 1ffff110170e7e91 RCX: ffff888021ebbc00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90000bf7840 R08: ffffffff81b778b8 R09: 1ffffffff20bfbee R10: dffffc0000000000 R11: fffffbfff20bfbef R12: ffff8880b863ad08 R13: ffff8880b873f488 R14: ffff8880b863ad00 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff888124f96000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc8a04ceca1 CR3: 000000000eb38000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1052 on_each_cpu include/linux/smp.h:71 [inline] text_poke_sync arch/x86/kernel/alternative.c:2455 [inline] text_poke_bp_batch+0x354/0xb30 arch/x86/kernel/alternative.c:2665 text_poke_flush arch/x86/kernel/alternative.c:2856 [inline] text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2863 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146 static_key_enable_cpuslocked+0x136/0x260 kernel/jump_label.c:210 static_key_enable+0x1a/0x20 kernel/jump_label.c:223 toggle_allocation_gate+0xc0/0x250 mm/kfence/core.c:850 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0xac3/0x18e0 kernel/workqueue.c:3319 worker_thread+0x870/0xd50 kernel/workqueue.c:3400 kthread+0x7b7/0x940 kernel/kthread.c:464 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245