watchdog: BUG: soft lockup - CPU#1 stuck for 143s! [syz.1.83:6177] Modules linked in: irq event stamp: 29026863 hardirqs last enabled at (29026862): [] irqentry_exit+0x63/0x90 kernel/entry/common.c:357 hardirqs last disabled at (29026863): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1049 softirqs last enabled at (10250534): [] __do_softirq kernel/softirq.c:588 [inline] softirqs last enabled at (10250534): [] invoke_softirq kernel/softirq.c:428 [inline] softirqs last enabled at (10250534): [] __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:655 softirqs last disabled at (10250537): [] __do_softirq kernel/softirq.c:588 [inline] softirqs last disabled at (10250537): [] invoke_softirq kernel/softirq.c:428 [inline] softirqs last disabled at (10250537): [] __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:655 CPU: 1 UID: 0 PID: 6177 Comm: syz.1.83 Not tainted 6.13.0-rc1-syzkaller-00034-gdff8470b99da #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:kcov_remote_start+0x35/0x7d0 kernel/kcov.c:935 Code: 41 54 53 48 83 ec 18 65 48 8b 1c 25 00 d6 03 00 48 b8 00 00 00 00 ff ff ff 00 48 85 c7 74 17 90 0f 0b 90 48 83 c4 18 5b 41 5c <41> 5d 41 5e 41 5f 5d c3 cc cc cc cc 48 89 fd 48 89 f8 48 c1 e8 39 RSP: 0018:ffffc90000a18958 EFLAGS: 00000286 RAX: 33b9e8c0e8001d00 RBX: 0000000000000000 RCX: ffffffff817b246a RDX: dffffc0000000000 RSI: ffffffff8c0a9680 RDI: ffffffff8c5f6660 RBP: ffff8880b872d4e8 R08: ffffffff942b8897 R09: 1ffffffff2857112 R10: dffffc0000000000 R11: fffffbfff2857113 R12: ffff88807a188e40 R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4995560290 CR3: 0000000078b0c000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kcov_remote_start_common include/linux/kcov.h:50 [inline] ieee80211_rx_list+0x536/0x3810 net/mac80211/rx.c:5451 ieee80211_rx_napi+0x18a/0x3c0 net/mac80211/rx.c:5492 ieee80211_rx include/net/mac80211.h:5163 [inline] ieee80211_handle_queued_frames+0xe7/0x1e0 net/mac80211/main.c:441 tasklet_action_common+0x426/0x620 kernel/softirq.c:804 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:655 irq_exit_rcu+0x9/0x30 kernel/softirq.c:671 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:spin_unlock include/linux/spinlock.h:391 [inline] RIP: 0010:task_unlock include/linux/sched/task.h:234 [inline] RIP: 0010:exit_mm+0x1f7/0x310 kernel/exit.c:567 Code: 39 a9 00 49 c7 84 24 48 05 00 00 00 00 00 00 31 ff e8 6d e7 17 00 4c 89 f7 4c 89 e6 e8 32 2b ec ff e8 8d 0c 46 00 fb 4c 89 ef 24 ef 71 0a 0f 1f 44 00 00 e8 9a 42 3e 00 48 8b 7c 24 08 e8 d0 RSP: 0018:ffffc9000c247a00 EFLAGS: 00000286 RAX: 33b9e8c0e8001d00 RBX: 0000000000000200 RCX: ffffffff817b246a RDX: dffffc0000000000 RSI: ffffffff8c0a9680 RDI: ffff8880255945c0 RBP: ffffc9000c247ab0 R08: ffffffff942b8897 R09: 1ffffffff2857112 R10: dffffc0000000000 R11: fffffbfff2857113 R12: ffff888025593c00 R13: ffff8880255945c0 R14: ffff88807c9789c0 R15: dffffc0000000000 do_exit+0x9b2/0x28e0 kernel/exit.c:925 do_group_exit+0x207/0x2c0 kernel/exit.c:1087 get_signal+0x16b2/0x1750 kernel/signal.c:3017 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0xce/0x340 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fcb66f7ff19 Code: Unable to access opcode bytes at 0x7fcb66f7feef. RSP: 002b:00007fcb67e34058 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: 0000000000000000 RBX: 00007fcb67145fa0 RCX: 00007fcb66f7ff19 RDX: 0000000020000780 RSI: 0000000000005452 RDI: 0000000000000004 RBP: 00007fcb66ff3986 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fcb67145fa0 R15: 00007fff4b574a98 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 6237 Comm: kworker/u8:15 Not tainted 6.13.0-rc1-syzkaller-00034-gdff8470b99da #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: events_unbound toggle_allocation_gate RIP: 0010:csd_lock_wait kernel/smp.c:340 [inline] RIP: 0010:smp_call_function_many_cond+0x19f3/0x2c60 kernel/smp.c:884 Code: 45 8b 65 00 44 89 e6 83 e6 01 31 ff e8 66 e9 0b 00 41 83 e4 01 49 bc 00 00 00 00 00 fc ff df 75 07 e8 11 e5 0b 00 eb 38 f3 90 <42> 0f b6 04 23 84 c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8 f5 e4 RSP: 0018:ffffc9000485f6e0 EFLAGS: 00000293 RAX: ffffffff81938d2b RBX: 1ffff110170e88e9 RCX: ffff88802169da00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc9000485f8e0 R08: ffffffff81938cfa R09: 1ffffffff2857110 R10: dffffc0000000000 R11: fffffbfff2857111 R12: dffffc0000000000 R13: ffff8880b8744748 R14: ffff8880b863fac0 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005561d778ed88 CR3: 000000000e736000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1051 on_each_cpu include/linux/smp.h:71 [inline] text_poke_sync arch/x86/kernel/alternative.c:2114 [inline] text_poke_bp_batch+0x352/0xb30 arch/x86/kernel/alternative.c:2324 text_poke_flush arch/x86/kernel/alternative.c:2515 [inline] text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2522 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+0xbc/0x260 mm/kfence/core.c:849 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244