watchdog: BUG: soft lockup - CPU#0 stuck for 143s! [syz.3.1172:11668] Modules linked in: irq event stamp: 13258275 hardirqs last enabled at (13258274): [] irqentry_exit+0x59c/0x620 kernel/entry/common.c:219 hardirqs last disabled at (13258275): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1056 softirqs last enabled at (11008134): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last enabled at (11008134): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last enabled at (11008134): [] __irq_exit_rcu+0x5f/0x150 kernel/softirq.c:723 softirqs last disabled at (11008137): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last disabled at (11008137): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last disabled at (11008137): [] __irq_exit_rcu+0x5f/0x150 kernel/softirq.c:723 CPU: 0 UID: 0 PID: 11668 Comm: syz.3.1172 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/13/2026 RIP: 0010:arch_stack_walk+0x113/0x150 arch/x86/kernel/stacktrace.c:25 Code: 00 74 38 4c 8d bd 78 ff ff ff 4c 89 ff e8 05 5f 09 00 48 85 c0 74 24 48 89 df 48 89 c6 4d 89 f3 2e 2e 2e 41 ff d3 84 c0 74 11 <4c> 89 ff e8 35 60 09 00 83 bd 78 ff ff ff 00 75 cf 65 48 8b 05 04 RSP: 0018:ffffc900000076c8 EFLAGS: 00000202 RAX: 0000000000000001 RBX: ffffc90000007780 RCX: 0000000000000100 RDX: dffffc0000000000 RSI: ffffffff8229dfa2 RDI: ffffc90000007780 RBP: ffffc90000007750 R08: ffffc90000007790 R09: 0000000000000016 R10: ffffc90000007208 R11: ffffffff81ae4550 R12: ffff888079cf5b80 R13: 00000000000000f0 R14: ffffffff81ae4550 R15: ffffc900000076c8 FS: 00007f4ccbc3c6c0(0000) GS:ffff888125929000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00002000000022e0 CR3: 0000000035a44000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: 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:4953 [inline] slab_alloc_node mm/slub.c:5263 [inline] kmem_cache_alloc_node_noprof+0x427/0x6f0 mm/slub.c:5315 __alloc_skb+0x1d7/0x390 net/core/skbuff.c:679 alloc_skb include/linux/skbuff.h:1383 [inline] new_skb+0x2f/0x2b0 drivers/block/aoe/aoecmd.c:66 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:430 [inline] aoecmd_cfg+0x2b1/0x800 drivers/block/aoe/aoecmd.c:1374 call_timer_fn+0x192/0x5a0 kernel/time/timer.c:1748 expire_timers kernel/time/timer.c:1799 [inline] __run_timers kernel/time/timer.c:2373 [inline] __run_timer_base+0x652/0x8b0 kernel/time/timer.c:2385 run_timer_base kernel/time/timer.c:2394 [inline] run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2404 handle_softirqs+0x22a/0x7c0 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:schedule_debug kernel/sched/core.c:5835 [inline] RIP: 0010:__schedule+0x229/0x4fb0 kernel/sched/core.c:6740 Code: 56 07 25 ff ff ff 7f 83 f8 01 0f 85 01 14 00 00 e8 bc 29 ff ff 85 c0 74 46 48 c7 c7 80 a3 35 8e be ff ff ff ff e8 67 26 ff ff <85> c0 74 31 e8 9e 29 ff ff 85 c0 74 28 80 3d 7a 5e 3f 04 00 75 1f RSP: 0018:ffffc9000452f1c0 EFLAGS: 00000206 RAX: 0000000000000000 RBX: ffffc90004528000 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffffffff8dd3bf7d RDI: ffffffff8be73e00 RBP: ffffc9000452f3c0 R08: ffffffff8fced377 R09: 1ffffffff1f9da6e R10: dffffc0000000000 R11: fffffbfff1f9da6f R12: ffff888125929000 R13: 0000000000000001 R14: ffff888079cf5b80 R15: 1ffff110170c7680 preempt_schedule_common+0x82/0xd0 kernel/sched/core.c:7047 preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] _raw_spin_unlock_irqrestore+0x74/0x80 kernel/locking/spinlock.c:194 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] __put_partials+0x10e/0x170 mm/slub.c:3879 __slab_free+0x294/0x320 mm/slub.c:5952 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4953 [inline] slab_alloc_node mm/slub.c:5263 [inline] kmem_cache_alloc_node_noprof+0x427/0x6f0 mm/slub.c:5315 alloc_vmap_area+0x29f/0x14a0 mm/vmalloc.c:2060 __get_vm_area_node+0x1f8/0x300 mm/vmalloc.c:3219 __vmalloc_node_range_noprof+0x372/0x1730 mm/vmalloc.c:4011 __vmalloc_node_noprof mm/vmalloc.c:4111 [inline] __vmalloc_noprof+0xd2/0x120 mm/vmalloc.c:4127 bpf_prog_alloc_no_stats+0x4a/0x4f0 kernel/bpf/core.c:106 bpf_prog_alloc+0x3c/0x1a0 kernel/bpf/core.c:155 bpf_prog_load+0x7ba/0x1ae0 kernel/bpf/syscall.c:2990 __sys_bpf+0x618/0x950 kernel/bpf/syscall.c:6205 __do_sys_bpf kernel/bpf/syscall.c:6318 [inline] __se_sys_bpf kernel/bpf/syscall.c:6316 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:6316 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f4ccad9acb9 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:00007f4ccbc3c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f4ccb015fa0 RCX: 00007f4ccad9acb9 RDX: 0000000000000048 RSI: 0000200000000080 RDI: 0000000000000005 RBP: 00007f4ccae08bf7 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f4ccb016038 R14: 00007f4ccb015fa0 R15: 00007fff182315f8 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 11664 Comm: syz.0.1171 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/13/2026 RIP: 0010:strlen+0x2e/0x70 lib/string.c:420 Code: 41 57 41 56 41 54 53 48 c7 c0 ff ff ff ff 49 be 00 00 00 00 00 fc ff df 48 89 fb 49 89 c7 48 89 d8 48 c1 e8 03 42 0f b6 04 30 <84> c0 75 11 48 ff c3 49 8d 47 01 42 80 7c 3f 01 00 75 de eb 19 89 RSP: 0018:ffffc90000a08018 EFLAGS: 00000807 RAX: 0000000000000000 RBX: ffffffff8b8f5607 RCX: ffff8880583d1e80 RDX: ffffffff81afc284 RSI: ffff8880b8728258 RDI: ffffffff8b8f5600 RBP: ffffc90000a08130 R08: ffffffff8fced377 R09: 1ffffffff1f9da6e R10: dffffc0000000000 R11: fffffbfff1f9da6f R12: dffffc0000000000 R13: ffffffff81afc284 R14: dffffc0000000000 R15: 0000000000000006 FS: 00007fad55d376c0(0000) GS:ffff888125a29000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055555dd54a28 CR3: 00000000616ba000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000200000000300 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __fortify_strlen include/linux/fortify-string.h:268 [inline] trace_event_get_offsets_lock include/trace/events/lock.h:50 [inline] do_perf_trace_lock include/trace/events/lock.h:50 [inline] perf_trace_lock+0xce/0x3f0 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+0x379/0x3a0 kernel/locking/lockdep.c:5879 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:149 [inline] _raw_spin_unlock_irqrestore+0x1b/0x80 kernel/locking/spinlock.c:194 __run_hrtimer kernel/time/hrtimer.c:1773 [inline] __hrtimer_run_queues+0x414/0xc30 kernel/time/hrtimer.c:1841 hrtimer_interrupt+0x45b/0xaa0 kernel/time/hrtimer.c:1903 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1045 [inline] __sysvec_apic_timer_interrupt+0x102/0x3d0 arch/x86/kernel/apic/apic.c:1062 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline] sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1056 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:unwind_done arch/x86/include/asm/unwind.h:50 [inline] RIP: 0010:arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:24 Code: ff ff 4c 89 ff e8 05 5f 09 00 48 85 c0 74 24 48 89 df 48 89 c6 4d 89 f3 2e 2e 2e 41 ff d3 84 c0 74 11 4c 89 ff e8 35 60 09 00 <83> bd 78 ff ff ff 00 75 cf 65 48 8b 05 04 10 64 11 48 3b 45 d8 75 RSP: 0018:ffffc90000a08548 EFLAGS: 00000292 RAX: 00000000906fa801 RBX: ffffc90000a08600 RCX: 0000000000000102 RDX: 0000000000000002 RSI: ffffffff8dd3bf7d RDI: ffff8880583d1e80 RBP: ffffc90000a085d0 R08: ffffc90000a08948 R09: 0000000000000000 R10: ffffc90000a08598 R11: fffff520001410b5 R12: ffff8880583d1e80 R13: 00000000000002c0 R14: ffffffff81ae4550 R15: ffffc90000a08548 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:4953 [inline] slab_alloc_node mm/slub.c:5263 [inline] kmem_cache_alloc_node_noprof+0x427/0x6f0 mm/slub.c:5315 kmalloc_reserve+0xbd/0x290 net/core/skbuff.c:586 __alloc_skb+0x204/0x390 net/core/skbuff.c:690 skb_copy+0x188/0x800 net/core/skbuff.c:2162 mac80211_hwsim_tx_frame_no_nl+0xd00/0x11f0 drivers/net/wireless/virtual/mac80211_hwsim.c:1891 mac80211_hwsim_tx_frame+0x1b5/0x200 drivers/net/wireless/virtual/mac80211_hwsim.c:2264 mac80211_hwsim_beacon_tx+0x3e8/0x870 drivers/net/wireless/virtual/mac80211_hwsim.c:2365 __iterate_interfaces+0x2ab/0x590 net/mac80211/util.c:761 ieee80211_iterate_active_interfaces_atomic+0xdb/0x180 net/mac80211/util.c:797 mac80211_hwsim_beacon+0xbb/0x180 drivers/net/wireless/virtual/mac80211_hwsim.c:2395 __run_hrtimer kernel/time/hrtimer.c:1777 [inline] __hrtimer_run_queues+0x527/0xc30 kernel/time/hrtimer.c:1841 hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1858 handle_softirqs+0x22a/0x7c0 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:schedule_debug kernel/sched/core.c:5815 [inline] RIP: 0010:__schedule+0x19b/0x4fb0 kernel/sched/core.c:6740 Code: f6 48 8b 1b 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 5c a6 b0 f6 48 81 3b 9d 6e ac 57 <0f> 85 a8 19 00 00 45 85 ed 7f 54 49 8d 5e 18 48 89 d8 48 c1 e8 03 RSP: 0018:ffffc90004897860 EFLAGS: 00000246 RAX: 1ffff92000912000 RBX: ffffc90004890000 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: ffffffff8be73de0 RDI: ffffffff8be73da0 RBP: ffffc90004897a58 R08: ffffffff8fced377 R09: 1ffffffff1f9da6e R10: dffffc0000000000 R11: fffffbfff1f9da6f R12: ffff888125a29000 R13: 0000000000000001 R14: ffff8880583d1e80 R15: 1ffff110170e7680 preempt_schedule_common+0x82/0xd0 kernel/sched/core.c:7047 preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12 refill_obj_stock+0x543/0x840 mm/memcontrol.c:3098 obj_cgroup_charge_account+0x116/0x650 mm/memcontrol.c:3144 __memcg_slab_post_alloc_hook+0x3e5/0x730 mm/memcontrol.c:3228 memcg_slab_post_alloc_hook mm/slub.c:2338 [inline] slab_post_alloc_hook mm/slub.c:4964 [inline] slab_alloc_node mm/slub.c:5263 [inline] kmem_cache_alloc_lru_noprof+0x40e/0x6c0 mm/slub.c:5282 __d_alloc+0x37/0x6f0 fs/dcache.c:1730 d_alloc_pseudo+0x21/0xc0 fs/dcache.c:1861 alloc_path_pseudo fs/file_table.c:363 [inline] alloc_file_pseudo+0xdd/0x240 fs/file_table.c:379 sock_alloc_file+0xb8/0x2e0 net/socket.c:483 sock_map_fd net/socket.c:513 [inline] __sys_socket+0x13c/0x1b0 net/socket.c:1756 __do_sys_socket net/socket.c:1761 [inline] __se_sys_socket net/socket.c:1759 [inline] __x64_sys_socket+0x7a/0x90 net/socket.c:1759 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fad54d9acb9 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:00007fad55d37028 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007fad55015fa0 RCX: 00007fad54d9acb9 RDX: 0000000000000010 RSI: 0000000000000003 RDI: 0000000000000010 RBP: 00007fad54e08bf7 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fad55016038 R14: 00007fad55015fa0 R15: 00007ffd41766508