watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz.8.790:9284] Modules linked in: irq event stamp: 21040597 hardirqs last enabled at (21040596): [] irqentry_exit+0x63/0x90 kernel/entry/common.c:357 hardirqs last disabled at (21040597): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1049 softirqs last enabled at (21030948): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last enabled at (21030948): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last enabled at (21030948): [] __irq_exit_rcu+0xfb/0x220 kernel/softirq.c:680 softirqs last disabled at (21030951): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last disabled at (21030951): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last disabled at (21030951): [] __irq_exit_rcu+0xfb/0x220 kernel/softirq.c:680 CPU: 1 UID: 0 PID: 9284 Comm: syz.8.790 Not tainted 6.15.0-rc2-syzkaller-g82303a059aab #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:check_kcov_mode kernel/kcov.c:183 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x28/0x70 kernel/kcov.c:217 Code: 90 90 f3 0f 1e fa 48 8b 04 24 65 48 8b 0c 25 08 60 68 93 65 8b 15 58 a5 a5 11 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 35 <83> b9 3c 16 00 00 00 74 2c 8b 91 18 16 00 00 83 fa 02 75 21 48 8b RSP: 0018:ffffc90000a08bb8 EFLAGS: 00000246 RAX: ffffffff8ba18827 RBX: 0000000000000001 RCX: ffff888074ad1e00 RDX: 0000000000000100 RSI: ffffffff8e6491c3 RDI: ffffffff8ca1b5a0 RBP: ffffc90000a08c80 R08: ffffffff905fe077 R09: 1ffffffff20bfc0e R10: dffffc0000000000 R11: fffffbfff20bfc0f R12: 1ffff92000141180 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff8ba185a4 FS: 00007fad0d6476c0(0000) GS:ffff88812509a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f671a0e56c0 CR3: 000000007ae2c000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: ieee80211_rx_napi+0x357/0x3c0 net/mac80211/rx.c:5443 ieee80211_rx include/net/mac80211.h:5179 [inline] ieee80211_handle_queued_frames+0xe7/0x1e0 net/mac80211/main.c:441 tasklet_action_common+0x428/0x620 kernel/softirq.c:829 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:kasan_check_range+0x5/0x2a0 mm/kasan/generic.c:188 Code: 8e e8 cf 37 e2 ff 90 0f 0b cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 55 <41> 57 41 56 41 54 53 b0 01 48 85 f6 0f 84 a0 01 00 00 4c 8d 04 37 RSP: 0018:ffffc90004acf510 EFLAGS: 00000246 RAX: ffffffff81f57f11 RBX: 0000000000000100 RCX: ffffffff81f57f20 RDX: 0000000000000001 RSI: 0000000000000100 RDI: ffffc90004acf600 RBP: ffffc90004acf600 R08: ffff8880b8732560 R09: ffffe8fffed327f8 R10: 7365756575715f78 R11: 6b636f6c2e5d695b R12: ffffc90004acf740 R13: ffffc90004acf600 R14: 0000000000000000 R15: 0000000000000034 __asan_memset+0x23/0x50 mm/kasan/shadow.c:84 perf_tp_event+0xd0/0x1660 kernel/events/core.c:10845 perf_trace_run_bpf_submit+0x100/0x180 kernel/events/core.c:10793 do_perf_trace_lock include/trace/events/lock.h:50 [inline] perf_trace_lock+0x39c/0x4a0 include/trace/events/lock.h:50 __do_trace_lock_release include/trace/events/lock.h:69 [inline] trace_lock_release include/trace/events/lock.h:69 [inline] lock_release+0x3b4/0x3e0 kernel/locking/lockdep.c:5877 __raw_spin_unlock include/linux/spinlock_api_smp.h:141 [inline] _raw_spin_unlock+0x16/0x50 kernel/locking/spinlock.c:186 spin_unlock include/linux/spinlock.h:391 [inline] futex_queue kernel/futex/futex.h:312 [inline] futex_wait_queue+0xad/0x1f0 kernel/futex/waitwake.c:352 __futex_wait+0x181/0x320 kernel/futex/waitwake.c:668 futex_wait+0x103/0x370 kernel/futex/waitwake.c:696 do_futex+0x37c/0x5a0 kernel/futex/syscalls.c:102 __do_sys_futex kernel/futex/syscalls.c:179 [inline] __se_sys_futex+0x436/0x4c0 kernel/futex/syscalls.c:160 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: 0033:0x7fad0c78e169 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:00007fad0d6470e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007fad0c9b5fa8 RCX: 00007fad0c78e169 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fad0c9b5fa8 RBP: 00007fad0c9b5fa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fad0c9b5fac R13: 0000000000000000 R14: 00007fff57dc3880 R15: 00007fff57dc3968 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 7528 Comm: kworker/u8:37 Not tainted 6.15.0-rc2-syzkaller-g82303a059aab #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 68 dc 0b 00 41 83 e4 01 4c 8b 64 24 68 75 07 e8 18 d8 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:ffffc90004b27640 EFLAGS: 00000293 RAX: ffffffff81b6e2cd RBX: 1ffff110170e7e91 RCX: ffff88807f805a00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90004b27840 R08: ffffffff81b6e298 R09: 1ffffffff20bfc0e R10: dffffc0000000000 R11: fffffbfff20bfc0f R12: ffff8880b863ad08 R13: ffff8880b873f488 R14: ffff8880b863ad00 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff888124f9a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3ba1266a00 CR3: 000000000eb38000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000000000000082 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_disable_cpuslocked+0xd2/0x1c0 kernel/jump_label.c:240 static_key_disable+0x1a/0x20 kernel/jump_label.c:248 toggle_allocation_gate+0x1b1/0x250 mm/kfence/core.c:855 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