watchdog: BUG: soft lockup - CPU#0 stuck for 118s! [syz.3.11631:17398] Modules linked in: irq event stamp: 14937239 hardirqs last enabled at (14937238): [] irqentry_exit+0x59e/0x620 kernel/entry/common.c:242 hardirqs last disabled at (14937239): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1056 softirqs last enabled at (13394530): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last enabled at (13394530): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last enabled at (13394530): [] __irq_exit_rcu+0x5f/0x150 kernel/softirq.c:723 softirqs last disabled at (13394533): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last disabled at (13394533): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last disabled at (13394533): [] __irq_exit_rcu+0x5f/0x150 kernel/softirq.c:723 CPU: 0 UID: 0 PID: 17398 Comm: syz.3.11631 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:_ieee802_11_parse_elems_full+0x6ca/0x4380 net/mac80211/parse.c:-1 Code: d8 00 00 00 48 89 8c 24 b8 02 00 00 48 8d 88 da 02 00 00 48 89 8c 24 b0 02 00 00 48 8d 88 50 01 00 00 48 89 8c 24 78 01 00 00 <48> 8d 88 98 00 00 00 48 89 8c 24 60 01 00 00 48 8d 88 90 00 00 00 RSP: 0018:ffffc90000006b60 EFLAGS: 00000202 RAX: ffff888076f63800 RBX: 0000000000000008 RCX: ffff888076f63950 RDX: 0000000000000100 RSI: 0000000000000008 RDI: 0000000000000028 RBP: ffffc90000006f70 R08: ffff88802abf9e40 R09: 0000000000000007 R10: 00000000000000d0 R11: 0000000000000100 R12: ffff88807833899d R13: ffff8880783389c5 R14: 0000000000000028 R15: ffffc90000007220 FS: 00007fed1cff16c0(0000) GS:ffff888125466000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00002000000013c0 CR3: 0000000020fb0000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: ieee802_11_parse_elems_full+0x1226/0x2ab0 net/mac80211/parse.c:1102 ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2480 [inline] ieee80211_inform_bss+0x161/0x1160 net/mac80211/scan.c:79 rdev_inform_bss net/wireless/rdev-ops.h:418 [inline] cfg80211_inform_single_bss_data+0xd08/0x1b70 net/wireless/scan.c:2373 cfg80211_inform_bss_data+0x266/0x3c40 net/wireless/scan.c:3228 cfg80211_inform_bss_frame_data+0x3c7/0x760 net/wireless/scan.c:3319 ieee80211_bss_info_update+0x794/0xa40 net/mac80211/scan.c:230 ieee80211_scan_rx+0x552/0xa40 net/mac80211/scan.c:364 __ieee80211_rx_handle_packet net/mac80211/rx.c:5305 [inline] ieee80211_rx_list+0x29e5/0x3710 net/mac80211/rx.c:5588 ieee80211_rx_napi+0x1b1/0x3e0 net/mac80211/rx.c:5611 ieee80211_rx include/net/mac80211.h:5267 [inline] ieee80211_handle_queued_frames+0xe8/0x1e0 net/mac80211/main.c:452 tasklet_action_common+0x2da/0x4b0 kernel/softirq.c:925 handle_softirqs+0x22a/0x870 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0x5f/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:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:179 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0x47/0x80 kernel/locking/spinlock.c:194 Code: f7 e8 7d 70 f2 f5 f7 c3 00 02 00 00 74 05 e8 00 c1 1d f6 9c 58 a9 00 02 00 00 75 27 f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 c4 36 e4 f5 65 8b 05 8d ef 6b 07 85 c0 74 18 5b 41 5e c3 cc cc RSP: 0018:ffffc9000d63eb00 EFLAGS: 00000206 RAX: 0000000000000006 RBX: 0000000000000286 RCX: 0000000000000002 RDX: 0000000000000000 RSI: ffffffff8def18d2 RDI: 0000000000000001 RBP: 0000000000000000 R08: ffffffff901172b7 R09: 1ffffffff2022e56 R10: dffffc0000000000 R11: fffffbfff2022e57 R12: dffffc0000000000 R13: 1ffff1100654ea93 R14: ffffffff9a4e5588 R15: ffffc9000cfd0000 debug_rcu_head_queue kernel/rcu/rcu.h:237 [inline] __call_rcu_common kernel/rcu/tree.c:3116 [inline] call_rcu+0x5b/0x890 kernel/rcu/tree.c:3251 thread_stack_delayed_free kernel/fork.c:288 [inline] free_thread_stack kernel/fork.c:380 [inline] release_task_stack kernel/fork.c:518 [inline] put_task_stack+0x133/0x1c0 kernel/fork.c:525 finish_task_switch+0x4b7/0x920 kernel/sched/core.c:5193 context_switch kernel/sched/core.c:5298 [inline] __schedule+0x158d/0x5340 kernel/sched/core.c:6907 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7234 irqentry_exit+0x599/0x620 kernel/entry/common.c:239 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:preempt_schedule_notrace+0x0/0x90 kernel/sched/core.c:7156 Code: ff 5b 41 5e 41 5f c3 cc cc cc cc cc 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 41 56 53 65 8b 05 02 5c 6d 07 a9 ff ff ff 7f 75 09 9c RSP: 0018:ffffc9000d63ef60 EFLAGS: 00000246 RAX: b7549406f9845100 RBX: ffffe8ffffcd7010 RCX: f8f8f8f8f8f8f8f8 RDX: ffffc90014d0a000 RSI: 0000000000000ad2 RDI: 0000000000000ad3 RBP: ffffc9000d63efb0 R08: ffffc9000d63ed57 R09: 0000000000000000 R10: ffffc9000d63ed48 R11: fffff52001ac7dab R12: dffffc0000000000 R13: dffffc0000000000 R14: 000000000000002c R15: 1ffff92001ac7e00 preempt_schedule_notrace_thunk+0x16/0x30 arch/x86/entry/thunk.S:13 class_preempt_notrace_destructor include/linux/preempt.h:469 [inline] perf_trace_lock+0x38b/0x410 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+0x392/0x3d0 kernel/locking/lockdep.c:5879 rcu_lock_release include/linux/rcupdate.h:322 [inline] rcu_read_unlock include/linux/rcupdate.h:881 [inline] class_rcu_destructor include/linux/rcupdate.h:1193 [inline] unwind_next_frame+0x1aaa/0x23c0 arch/x86/kernel/unwind_orc.c:695 __unwind_start+0x5b8/0x760 arch/x86/kernel/unwind_orc.c:773 unwind_start arch/x86/include/asm/unwind.h:64 [inline] arch_stack_walk+0xe3/0x150 arch/x86/kernel/stacktrace.c:24 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 unpoison_slab_object mm/kasan/common.c:340 [inline] __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:366 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4501 [inline] slab_alloc_node mm/slub.c:4830 [inline] kmem_cache_alloc_node_noprof+0x384/0x690 mm/slub.c:4882 alloc_vmap_area+0x229/0x14b0 mm/vmalloc.c:2065 __get_vm_area_node+0x1f8/0x300 mm/vmalloc.c:3232 __vmalloc_node_range_noprof+0x372/0x1730 mm/vmalloc.c:4024 __vmalloc_node_noprof mm/vmalloc.c:4124 [inline] __vmalloc_noprof+0xd2/0x120 mm/vmalloc.c:4140 bpf_prog_alloc_no_stats+0x4a/0x4f0 kernel/bpf/core.c:107 bpf_prog_alloc+0x3c/0x1a0 kernel/bpf/core.c:156 bpf_prog_load+0x7ba/0x1ae0 kernel/bpf/syscall.c:2993 __sys_bpf+0x618/0x950 kernel/bpf/syscall.c:6229 __do_sys_bpf kernel/bpf/syscall.c:6342 [inline] __se_sys_bpf kernel/bpf/syscall.c:6340 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:6340 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fed1c19c629 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fed1cff1028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007fed1c415fa0 RCX: 00007fed1c19c629 RDX: 0000000000000094 RSI: 0000200000000b00 RDI: 0000000000000005 RBP: 00007fed1c232b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fed1c416038 R14: 00007fed1c415fa0 R15: 00007fff1bfcab28 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 17411 Comm: kworker/u9:6 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 Workqueue: hci5 hci_cmd_timeout RIP: 0010:get_current arch/x86/include/asm/current.h:25 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x70 kernel/kcov.c:216 Code: 8b 3d 44 13 55 0c 48 89 de 5b e9 33 79 5e 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 <65> 48 8b 0d 68 13 56 11 65 8b 15 89 13 56 11 81 e2 00 01 ff 00 74 RSP: 0018:ffffc9000d74ef78 EFLAGS: 00000246 RAX: ffffffff8ba91343 RBX: 000000000000000a RCX: 0000000000000000 RDX: ffff8880b05c1e40 RSI: 000000000000000a RDI: 000000000000000a RBP: ffffc9000d74f0a0 R08: ffffc9000d74f017 R09: 0000000000000000 R10: ffffc9000d74f000 R11: fffff52001ae9e03 R12: 0000000000026f35 R13: 0000000000026f35 R14: ffffc9000d74f387 R15: 0000000006ffff0a FS: 0000000000000000(0000) GS:ffff888125566000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005624810d95b8 CR3: 000000000e54c000 CR4: 00000000003526f0 DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000200000000300 DR3: 0000000000000000 DR6: 00000000ffff0ff1 DR7: 0000000000000600 Call Trace: number+0x2f3/0xf80 lib/vsprintf.c:520 vsnprintf+0x8e5/0xee0 lib/vsprintf.c:2912 sprintf+0xe7/0x140 lib/vsprintf.c:3111 print_time kernel/printk/printk.c:1359 [inline] info_print_prefix+0x16b/0x360 kernel/printk/printk.c:1385 record_print_text+0x176/0x450 kernel/printk/printk.c:1434 printk_get_next_message+0x29c/0x880 kernel/printk/printk.c:3072 console_emit_next_record kernel/printk/printk.c:3137 [inline] console_flush_one_record kernel/printk/printk.c:3269 [inline] console_flush_all+0x501/0xb20 kernel/printk/printk.c:3343 __console_flush_and_unlock kernel/printk/printk.c:3373 [inline] console_unlock+0xd1/0x1c0 kernel/printk/printk.c:3413 vprintk_emit+0x485/0x560 kernel/printk/printk.c:2479 _printk+0xdd/0x130 kernel/printk/printk.c:2504 bt_err+0x121/0x180 net/bluetooth/lib.c:296 hci_cmd_timeout+0xd8/0x1e0 net/bluetooth/hci_core.c:1470 process_one_work kernel/workqueue.c:3275 [inline] process_scheduled_works+0xb02/0x1830 kernel/workqueue.c:3358 worker_thread+0xa50/0xfc0 kernel/workqueue.c:3439 kthread+0x388/0x470 kernel/kthread.c:467 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245