watchdog: BUG: soft lockup - CPU#1 stuck for 121s! [syz.1.30:6028] Modules linked in: irq event stamp: 12928179 hardirqs last enabled at (12928178): [] irqentry_exit+0x63/0x90 kernel/entry/common.c:357 hardirqs last disabled at (12928179): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1049 softirqs last enabled at (12924060): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last enabled at (12924060): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last enabled at (12924060): [] __irq_exit_rcu+0xfb/0x220 kernel/softirq.c:680 softirqs last disabled at (12924063): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last disabled at (12924063): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last disabled at (12924063): [] __irq_exit_rcu+0xfb/0x220 kernel/softirq.c:680 CPU: 1 UID: 0 PID: 6028 Comm: syz.1.30 Not tainted 6.14.0-syzkaller-g8582d9ab3efd #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:217 [inline] RIP: 0010:unwind_next_frame+0x23e/0x23b0 arch/x86/kernel/unwind_orc.c:494 Code: 03 0c 0d 00 44 0f 45 f1 41 8d 46 ff 39 e8 0f 86 1d 19 00 00 89 e8 48 8d 1c 85 80 a4 92 91 48 89 d8 48 c1 e8 03 42 0f b6 04 28 <84> c0 4d 89 ef 0f 85 44 1b 00 00 44 8b 2b 89 e8 ff c0 48 8d 1c 85 RSP: 0018:ffffc90000a08308 EFLAGS: 00000a06 RAX: 0000000000000000 RBX: ffffffff91bd4030 RCX: 00000000000b32d5 RDX: 0000000000000000 RSI: ffffffff8ca1af40 RDI: ffffffff8ca1af00 RBP: 00000000000aa6ec R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff8ba6ec26 R13: dffffc0000000000 R14: 00000000000b32d5 R15: ffffffff816d9bc8 FS: 00007f0e99e5c6c0(0000) GS:ffff88812509f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fde44cccf98 CR3: 000000007934c000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: arch_stack_walk+0x11e/0x150 arch/x86/kernel/stacktrace.c:25 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 unpoison_slab_object mm/kasan/common.c:319 [inline] __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:345 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_node_noprof+0x1f2/0x3b0 mm/slub.c:4252 __alloc_skb+0x1c2/0x480 net/core/skbuff.c:658 __netdev_alloc_skb+0x105/0xa10 net/core/skbuff.c:732 netdev_alloc_skb include/linux/skbuff.h:3413 [inline] dev_alloc_skb include/linux/skbuff.h:3426 [inline] __ieee80211_beacon_get+0x9a7/0x15e0 net/mac80211/tx.c:5475 ieee80211_beacon_get_tim+0xb7/0x330 net/mac80211/tx.c:5597 ieee80211_beacon_get include/net/mac80211.h:5648 [inline] mac80211_hwsim_beacon_tx+0x3a2/0x860 drivers/net/wireless/virtual/mac80211_hwsim.c:2313 __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 7a 38 fd 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 58 38 fd f5 48 81 3b 9d 6e ac 57 0f 85 3a 23 00 RSP: 0018:ffffc90004c77b00 EFLAGS: 00000246 RAX: 1ffff9200098e000 RBX: ffffc90004c70000 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: ffffffff8ca1af40 RDI: ffffffff8ca1af00 RBP: ffffc90004c77d30 R08: ffffffff905fce77 R09: 1ffffffff20bf9ce R10: dffffc0000000000 R11: fffffbfff20bf9cf R12: ffff88812509f000 R13: 1ffff9200098efa8 R14: ffff8880b873a600 R15: ffffc90004c77d60 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_sock_setsockopt+0x0/0x710 net/socket.c:2265 Code: 31 c0 45 31 c9 e8 f0 f8 ff ff 48 98 5b 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 RSP: 0018:ffffc90004c77eb0 EFLAGS: 00000246 RAX: ffffffff89df1d2a RBX: 0000000000000000 RCX: 0000000000000087 RDX: 000000000000010f RSI: 0000000000000000 RDI: ffff888077da0c00 RBP: 0000000000000000 R08: 00002000000008c0 R09: 0000000000000000 R10: ffffc90004c77bc0 R11: ffffffffa0000954 R12: 000000000000010f R13: ffff88807b969181 R14: ffff888077da0c00 R15: ffff88807b969180 __sys_setsockopt net/socket.c:2321 [inline] __do_sys_setsockopt net/socket.c:2327 [inline] __se_sys_setsockopt net/socket.c:2324 [inline] __x64_sys_setsockopt+0x187/0x210 net/socket.c:2324 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0e98f8e169 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:00007f0e99e5c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f0e991b5fa0 RCX: 00007f0e98f8e169 RDX: 0000000000000087 RSI: 000000000000010f RDI: 0000000000000004 RBP: 00007f0e99010a68 R08: 0000000000000043 R09: 0000000000000000 R10: 00002000000008c0 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f0e991b5fa0 R15: 00007ffce2570218 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 12 Comm: kworker/u8:0 Not tainted 6.14.0-syzkaller-g8582d9ab3efd #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+0x1bac/0x2d40 kernel/smp.c:885 Code: 03 84 c0 75 7e 45 8b 65 00 44 89 e6 83 e6 01 31 ff e8 18 dc 0b 00 41 83 e4 01 4c 8b 64 24 68 75 07 e8 c8 d7 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 RSP: 0018:ffffc90000117640 EFLAGS: 00000293 RAX: ffffffff81b6e58d RBX: 1ffff110170e7e91 RCX: ffff88801ceeda00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90000117840 R08: ffffffff81b6e558 R09: 1ffffffff20bf9ce R10: dffffc0000000000 R11: fffffbfff20bf9cf R12: ffff8880b863ad08 R13: ffff8880b873f488 R14: ffff8880b863ad00 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff888124f9f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f45f0eddab1 CR3: 000000000eb38000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 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