watchdog: BUG: soft lockup - CPU#1 stuck for 143s! [syz.1.69:6171] Modules linked in: irq event stamp: 13304713 hardirqs last enabled at (13304712): [] irqentry_exit+0x74/0x90 kernel/entry/common.c:214 hardirqs last disabled at (13304713): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1052 softirqs last enabled at (109474): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last enabled at (109474): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last enabled at (109474): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:723 softirqs last disabled at (109479): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last disabled at (109479): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last disabled at (109479): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:723 CPU: 1 UID: 0 PID: 6171 Comm: syz.1.69 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:cfg80211_inform_single_bss_data+0x9a9/0x1ac0 net/wireless/scan.c:2361 Code: 18 4d 8b 3f 48 89 d0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 0f 48 8b 7c 24 18 e8 4c ed 89 f7 48 8b 54 24 18 <4c> 89 3a 4c 8d 62 1c 4d 89 e7 49 c1 ef 03 48 b8 00 00 00 00 00 fc RSP: 0018:ffffc90000a081e0 EFLAGS: 00000246 RAX: 1ffff110060d10d0 RBX: 0000000000000048 RCX: dffffc0000000000 RDX: ffff888030688680 RSI: ffffffff8bc06140 RDI: ffffffff8bc06100 RBP: ffffc90000a083d0 R08: 0000000000000920 R09: 00000000ffffffff R10: 0000000000000011 R11: fffff52000140f2b R12: dffffc0000000000 R13: 0000000000000028 R14: 0000000000000028 R15: 000640d70c91d19d FS: 00007f48f75b36c0(0000) GS:ffff888125e27000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31222000 CR3: 00000000302aa000 CR4: 00000000003526f0 Call Trace: cfg80211_inform_bss_data+0x203/0x3b40 net/wireless/scan.c:3240 cfg80211_inform_bss_frame_data+0x3d7/0x730 net/wireless/scan.c:3331 ieee80211_bss_info_update+0x749/0x9e0 net/mac80211/scan.c:226 ieee80211_scan_rx+0x593/0xa20 net/mac80211/scan.c:355 __ieee80211_rx_handle_packet net/mac80211/rx.c:5194 [inline] ieee80211_rx_list+0x20d5/0x2b40 net/mac80211/rx.c:5447 ieee80211_rx_napi+0x1a8/0x3d0 net/mac80211/rx.c:5470 ieee80211_rx include/net/mac80211.h:5214 [inline] ieee80211_handle_queued_frames+0xe8/0x1f0 net/mac80211/main.c:453 tasklet_action_common+0x369/0x580 kernel/softirq.c:925 handle_softirqs+0x283/0x870 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:702 RIP: 0010:preempt_schedule_irq+0xb0/0x150 kernel/sched/core.c:7256 Code: 24 20 f6 44 24 21 02 74 0c 90 0f 0b 48 f7 03 10 00 00 00 74 64 bf 01 00 00 00 e8 2b c6 46 f6 e8 76 8f 7e f6 fb bf 01 00 00 00 5b ab ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24 RSP: 0018:ffffc9000ef07a80 EFLAGS: 00000282 RAX: f3a39ebab4b38a00 RBX: ffff888025838000 RCX: f3a39ebab4b38a00 RDX: 0000000000000007 RSI: ffffffff8d7e3b6a RDI: 0000000000000001 RBP: ffffc9000ef07b20 R08: ffffffff8f9db337 R09: 1ffffffff1f3b666 R10: dffffc0000000000 R11: fffffbfff1f3b667 R12: 0000000000000000 R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92001de0f50 irqentry_exit+0x6f/0x90 kernel/entry/common.c:211 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:arch_atomic64_read arch/x86/include/asm/atomic64_64.h:15 [inline] RIP: 0010:raw_atomic64_read include/linux/atomic/atomic-arch-fallback.h:2583 [inline] RIP: 0010:raw_atomic_long_read include/linux/atomic/atomic-long.h:38 [inline] RIP: 0010:atomic_long_read include/linux/atomic/atomic-instrumented.h:3189 [inline] RIP: 0010:__mutex_unlock_slowpath+0xe0/0x740 kernel/locking/mutex.c:931 Code: dc f6 48 89 de 4c 89 b4 24 88 00 00 00 49 8d 7f 68 e8 84 02 54 f6 4c 89 ff be 08 00 00 00 e8 37 41 dc f6 4c 89 f8 48 c1 e8 03 <48> 89 44 24 28 42 80 3c 28 00 74 08 4c 89 ff e8 ac 3e dc f6 4c 8d RSP: 0018:ffffc9000ef07be0 EFLAGS: 00000a02 RAX: 1ffff1100631d808 RBX: ffff8880318ec000 RCX: ffffffff8b488209 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8880318ec040 RBP: ffffc9000ef07cf0 R08: ffff8880318ec047 R09: 1ffff1100631d808 R10: dffffc0000000000 R11: ffffed100631d809 R12: ffff8880318ec150 R13: dffffc0000000000 R14: ffffc9000ef07c60 R15: ffff8880318ec040 __do_sys_perf_event_open kernel/events/core.c:13738 [inline] __se_sys_perf_event_open+0x194c/0x1d70 kernel/events/core.c:13377 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: 0033:0x7f48f678eec9 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:00007f48f75b3038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f48f69e5fa0 RCX: 00007f48f678eec9 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 00002000000003c0 RBP: 00007f48f6811f91 R08: 0000000000000003 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007f48f69e6038 R14: 00007f48f69e5fa0 R15: 00007ffe4cf88158 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 15 Comm: ksoftirqd/0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:__migrate_disable include/linux/sched.h:2383 [inline] RIP: 0010:migrate_disable include/linux/sched.h:2412 [inline] RIP: 0010:bpf_prog_run_array include/linux/bpf.h:2313 [inline] RIP: 0010:trace_call_bpf+0x260/0xb50 kernel/trace/bpf_trace.c:145 Code: 80 04 00 00 4c 89 f8 48 c1 e8 03 48 89 44 24 20 42 0f b6 04 28 84 c0 0f 85 0a 08 00 00 41 0f b7 1f 31 ff 89 de e8 e0 9c f4 ff <85> db 74 32 0f b7 db 31 ff 89 de e8 d0 9c f4 ff 66 85 db 0f 88 1a RSP: 0018:ffffc900001477c0 EFLAGS: 00000046 RAX: ffffffff81ca8b10 RBX: 0000000000000000 RCX: 0000000000000100 RDX: ffff88801c2c3c80 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc900001478d8 R08: ffffc9000014786f R09: 0000000000000000 R10: ffffc90000147860 R11: fffff52000028f0e R12: ffffc90000147860 R13: dffffc0000000000 R14: ffff888074d24480 R15: ffff88801c2c4100 FS: 0000000000000000(0000) GS:ffff888125d27000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000556fc1892a38 CR3: 0000000078f42000 CR4: 00000000003526f0 Call Trace: perf_trace_run_bpf_submit+0x78/0x170 kernel/events/core.c:10931 do_perf_trace_preemptirq_template include/trace/events/preemptirq.h:14 [inline] perf_trace_preemptirq_template+0x280/0x340 include/trace/events/preemptirq.h:14 __do_trace_irq_enable include/trace/events/preemptirq.h:40 [inline] trace_irq_enable+0xee/0x110 include/trace/events/preemptirq.h:40 trace_hardirqs_on+0x18/0x40 kernel/trace/trace_preemptirq.c:73 tasklet_action_common+0xfc/0x580 kernel/softirq.c:912 handle_softirqs+0x283/0x870 kernel/softirq.c:622 run_ksoftirqd+0x9b/0x100 kernel/softirq.c:1063 smpboot_thread_fn+0x542/0xa60 kernel/smpboot.c:160 kthread+0x70e/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245