watchdog: BUG: soft lockup - CPU#0 stuck for 144s! [syz.5.2661:16012] Modules linked in: irq event stamp: 12123721 hardirqs last enabled at (12123720): [] irqentry_exit+0x5e8/0x670 kernel/entry/common.c:219 hardirqs last disabled at (12123721): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1056 softirqs last enabled at (51020): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last enabled at (51020): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last enabled at (51020): [] __irq_exit_rcu+0x60/0x150 kernel/softirq.c:723 softirqs last disabled at (51023): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last disabled at (51023): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last disabled at (51023): [] __irq_exit_rcu+0x60/0x150 kernel/softirq.c:723 CPU: 0 UID: 0 PID: 16012 Comm: syz.5.2661 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:kasan_get_free_meta+0x0/0x30 mm/kasan/generic.c:477 Code: 8f d4 00 00 00 48 8d 04 0e 48 85 c9 48 0f 44 c1 c3 cc cc cc cc cc 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <0f> 1f 40 d6 48 63 8f d8 00 00 00 48 8d 14 0e 31 c0 48 81 f9 ff ff RSP: 0018:ffffc90000007170 EFLAGS: 00000246 RAX: 0000000007440271 RBX: ffff88807c77b000 RCX: 0000000000003e8c RDX: 000000002c84abea RSI: ffff88807c77b000 RDI: ffff88813ffa6dc0 RBP: 0000000000000000 R08: 000000006eef93a3 R09: 00000000571c0471 R10: 0000000000000013 R11: ffffffffa0203c48 R12: ffff88813ffa6dc0 R13: 0000000000000000 R14: ffff88813ffa6dc0 R15: ffffea0001f1de00 FS: 00007f75046926c0(0000) GS:ffff888125e1f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c31dfe6 CR3: 0000000041d5c000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: kasan_quarantine_put+0x15/0x1f0 mm/kasan/quarantine.c:190 kasan_slab_free include/linux/kasan.h:235 [inline] slab_free_hook mm/slub.c:2540 [inline] slab_free mm/slub.c:6670 [inline] kfree+0x1c0/0x660 mm/slub.c:6878 ieee80211_inform_bss+0xc4e/0x1130 net/mac80211/scan.c:164 rdev_inform_bss net/wireless/rdev-ops.h:418 [inline] cfg80211_inform_single_bss_data+0xd14/0x1ad0 net/wireless/scan.c:2373 cfg80211_inform_bss_data+0x203/0x3b40 net/wireless/scan.c:3228 cfg80211_inform_bss_frame_data+0x3c7/0x710 net/wireless/scan.c:3319 ieee80211_bss_info_update+0x749/0x9e0 net/mac80211/scan.c:230 ieee80211_scan_rx+0x593/0xa20 net/mac80211/scan.c:359 __ieee80211_rx_handle_packet net/mac80211/rx.c:5287 [inline] ieee80211_rx_list+0x2485/0x2f90 net/mac80211/rx.c:5544 ieee80211_rx_napi+0x1a8/0x3d0 net/mac80211/rx.c:5567 ieee80211_rx include/net/mac80211.h:5216 [inline] ieee80211_handle_queued_frames+0xe8/0x1e0 net/mac80211/main.c:452 tasklet_action_common+0x2da/0x4b0 kernel/softirq.c:925 handle_softirqs+0x22b/0x7c0 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0x60/0x150 kernel/softirq.c:723 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1056 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:preempt_schedule_irq+0x48/0xa0 kernel/sched/core.c:7190 Code: 49 be 00 00 00 00 00 fc ff df eb 09 48 f7 03 10 00 00 00 74 54 bf 01 00 00 00 e8 03 db 35 f6 e8 9e ee 6d f6 fb bf 01 00 00 00 c3 a9 ff ff 9c 58 fa a9 00 02 00 00 74 05 e8 24 f0 6d f6 bf 01 RSP: 0018:ffffc9000568fbf8 EFLAGS: 00000206 RAX: 000000000000c74d RBX: 0000000000000000 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffffffff8d792135 RDI: 0000000000000001 RBP: 0000000000000000 R08: ffffffff8f822377 R09: 1ffffffff1f0446e R10: dffffc0000000000 R11: fffffbfff1f0446f R12: 0000000000000000 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000 irqentry_exit+0x5e3/0x670 kernel/entry/common.c:216 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:mutex_init_lockep+0x0/0x130 kernel/locking/mutex.c:175 Code: 00 74 08 48 89 df e8 8f c3 89 00 48 8b 03 48 83 e0 f8 5b c3 cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 41 57 41 56 41 55 41 54 53 48 89 d3 49 89 f6 49 89 ff RSP: 0018:ffffc9000568fd18 EFLAGS: 00000206 RAX: 0000000000000046 RBX: ffff88802b6888c0 RCX: 0000000000000046 RDX: ffffffff99e0cc00 RSI: ffffffff8c7cec80 RDI: ffff88802b688e50 RBP: dffffc0000000000 R08: 0000000000000003 R09: 0000000000000000 R10: ffff88802b688f78 R11: ffffed10056d11f1 R12: ffff88802b688f88 R13: ffff88807d83a5c0 R14: ffff88802b688f78 R15: ffff88802b6888c0 __mutex_init include/linux/mutex.h:95 [inline] unix_create1+0x2a5/0x7d0 net/unix/af_unix.c:1121 unix_create+0x16b/0x210 net/unix/af_unix.c:1169 __sock_create+0x4b3/0x9d0 net/socket.c:1605 sock_create net/socket.c:1663 [inline] __sys_socketpair+0x1c5/0x560 net/socket.c:1810 __do_sys_socketpair net/socket.c:1863 [inline] __se_sys_socketpair net/socket.c:1860 [inline] __x64_sys_socketpair+0x9b/0xb0 net/socket.c:1860 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f750378f749 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:00007f7504692038 EFLAGS: 00000246 ORIG_RAX: 0000000000000035 RAX: ffffffffffffffda RBX: 00007f75039e5fa0 RCX: 00007f750378f749 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: 00007f7503813f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000200000000200 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f75039e6038 R14: 00007f75039e5fa0 R15: 00007fffd43ff9f8 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 7890 Comm: kworker/u8:17 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Workqueue: events_unbound toggle_allocation_gate RIP: 0010:csd_lock_wait kernel/smp.c:342 [inline] RIP: 0010:smp_call_function_many_cond+0xcc5/0x1260 kernel/smp.c:877 Code: 45 8b 2c 24 44 89 ee 83 e6 01 31 ff e8 e4 97 0b 00 41 83 e5 01 49 bd 00 00 00 00 00 fc ff df 75 07 e8 8f 93 0b 00 eb 38 f3 90 <42> 0f b6 04 2b 84 c0 75 11 41 f7 04 24 01 00 00 00 74 1e e8 73 93 RSP: 0018:ffffc9000cbef6a0 EFLAGS: 00000293 RAX: ffffffff81b5644d RBX: 1ffff110170c856d RCX: ffff888031d78000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc9000cbef7e0 R08: ffffffff8f822377 R09: 1ffffffff1f0446e R10: dffffc0000000000 R11: fffffbfff1f0446f R12: ffff8880b8642b68 R13: dffffc0000000000 R14: ffff8880b873bb00 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888125f1f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f45ed263ff8 CR3: 000000000dd3a000 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:1043 on_each_cpu include/linux/smp.h:71 [inline] smp_text_poke_sync_each_cpu arch/x86/kernel/alternative.c:2711 [inline] smp_text_poke_batch_finish+0x5f9/0x1130 arch/x86/kernel/alternative.c:2921 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146 static_key_enable_cpuslocked+0x128/0x240 kernel/jump_label.c:210 static_key_enable+0x1a/0x20 kernel/jump_label.c:223 toggle_allocation_gate+0xad/0x240 mm/kfence/core.c:874 process_one_work kernel/workqueue.c:3257 [inline] process_scheduled_works+0xad1/0x1770 kernel/workqueue.c:3340 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3421 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x510/0xa50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246