watchdog: BUG: soft lockup - CPU#1 stuck for 143s! [syz.7.292:7151] Modules linked in: irq event stamp: 13698275 hardirqs last enabled at (13698274): [] irqentry_exit+0x59e/0x620 kernel/entry/common.c:242 hardirqs last disabled at (13698275): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1056 softirqs last enabled at (11197462): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last enabled at (11197462): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last enabled at (11197462): [] __irq_exit_rcu+0x5f/0x150 kernel/softirq.c:723 softirqs last disabled at (11197465): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last disabled at (11197465): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last disabled at (11197465): [] __irq_exit_rcu+0x5f/0x150 kernel/softirq.c:723 CPU: 1 UID: 0 PID: 7151 Comm: syz.7.292 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:__read_once_word_nocheck+0x3/0x10 include/asm-generic/rwonce.h:67 Code: 00 48 ba 00 00 00 00 00 fc ff df e9 88 fc ff ff 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 07 58 75 2d 0a cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90000a07df0 EFLAGS: 00000202 RAX: ffffffff81878faa RBX: ffffc90000a08ed0 RCX: 1ffff92000140f01 RDX: ffffffff9143abe8 RSI: 0000000000000002 RDI: ffffc90000a08ed0 RBP: 1ffff92000140fda R08: 0000000000000004 R09: ffffffff8e7603e0 R10: dffffc0000000000 R11: ffffffff81aff200 R12: ffffc90000a09000 R13: 1ffff92000140fdb R14: ffffc90000a07ec8 R15: ffffc90000a01000 FS: 00007fc2a78f16c0(0000) GS:ffff888125596000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f904fc58a03 CR3: 00000000355a0000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: deref_stack_reg arch/x86/kernel/unwind_orc.c:422 [inline] unwind_next_frame+0xe52/0x23c0 arch/x86/kernel/unwind_orc.c:600 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25 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 poison_kmalloc_redzone mm/kasan/common.c:398 [inline] __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:415 kasan_kmalloc include/linux/kasan.h:263 [inline] __do_kmalloc_node mm/slub.c:5177 [inline] __kmalloc_noprof+0x35c/0x760 mm/slub.c:5189 kmalloc_noprof include/linux/slab.h:966 [inline] kzalloc_noprof include/linux/slab.h:1204 [inline] cfg80211_inform_single_bss_data+0x934/0x1ab0 net/wireless/scan.c:2345 cfg80211_inform_bss_data+0x266/0x3c40 net/wireless/scan.c:3228 cfg80211_inform_bss_frame_data+0x3c7/0x710 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/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:lock_acquire+0x221/0x330 kernel/locking/lockdep.c:5872 Code: ff ff ff e8 d1 ea ff 09 f7 44 24 08 00 02 00 00 0f 84 3a ff ff ff 65 48 8b 05 4b c8 77 11 48 3b 44 24 58 75 33 fb 48 83 c4 60 <5b> 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc 48 8d 3d 48 99 73 RSP: 0018:ffffc90004e2f580 EFLAGS: 00000282 RAX: 49671f7e94000000 RBX: 0000000000000000 RCX: 0000000080000001 RDX: 000000008eba6367 RSI: ffffffff8e15b390 RDI: ffffffff8c278880 RBP: ffffffff81d05c52 R08: ffffffff81d05c52 R09: ffffffff8e7603e0 R10: dffffc0000000000 R11: fffff91ffff62405 R12: 0000000000000002 R13: ffffffff8e7603e0 R14: 0000000000000000 R15: 0000000000000246 rcu_lock_acquire include/linux/rcupdate.h:312 [inline] rcu_read_lock include/linux/rcupdate.h:850 [inline] trace_call_bpf+0xe3/0xb70 kernel/trace/bpf_trace.c:-1 perf_trace_run_bpf_submit+0x78/0x170 kernel/events/core.c:11301 do_perf_trace_lock include/trace/events/lock.h:50 [inline] perf_trace_lock+0x326/0x3f0 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 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 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122 ref_tracker_alloc+0x1b6/0x4d0 lib/ref_tracker.c:277 __netns_tracker_alloc include/net/net_namespace.h:367 [inline] netns_tracker_alloc include/net/net_namespace.h:376 [inline] get_net_track+0x16e/0x230 include/net/net_namespace.h:393 sk_alloc+0x1d6/0x390 net/core/sock.c:2318 tipc_sk_create+0x10a/0x2750 net/tipc/socket.c:486 __sock_create+0x4b2/0x9d0 net/socket.c:1605 sock_create net/socket.c:1663 [inline] __sys_socketpair+0x1c4/0x560 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+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc2a699c629 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:00007fc2a78f1028 EFLAGS: 00000246 ORIG_RAX: 0000000000000035 RAX: ffffffffffffffda RBX: 00007fc2a6c15fa0 RCX: 00007fc2a699c629 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 000000000000001e RBP: 00007fc2a6a32b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000200000000040 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fc2a6c16038 R14: 00007fc2a6c15fa0 R15: 00007ffc34f6bd68 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 7153 Comm: syz.6.291 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:__next_base kernel/time/hrtimer.c:500 [inline] RIP: 0010:__hrtimer_next_event_base kernel/time/hrtimer.c:520 [inline] RIP: 0010:__hrtimer_get_next_event kernel/time/hrtimer.c:597 [inline] RIP: 0010:hrtimer_update_next_event kernel/time/hrtimer.c:622 [inline] RIP: 0010:hrtimer_interrupt+0xa2a/0x1010 kernel/time/hrtimer.c:1914 Code: ff e8 8a 1a 13 00 eb ce e8 83 1a 13 00 49 bc ff ff ff ff ff ff ff 7f eb 1d e8 72 1a 13 00 49 bc ff ff ff ff ff ff ff 7f eb 0c 61 1a 13 00 eb 05 e8 5a 1a 13 00 4d 85 e4 bb 00 00 00 00 49 0f RSP: 0018:ffffc90000006f20 EFLAGS: 00000046 RAX: ffffffff81b197da RBX: ffff8880b86282e8 RCX: 0000000000010100 RDX: ffff88801db98000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000004d94db6b9e R08: ffff888047b5a737 R09: 0000000000000000 R10: ffff888047b5a728 R11: ffffed1008f6b4e7 R12: 0000004d94db6b9e R13: 0000000000000000 R14: 7fffffffffffffff R15: ffff888047b5a720 FS: 00007f5ccb2b16c0(0000) GS:ffff888125496000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555563cbb4e8 CR3: 0000000033392000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: 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:lock_release+0x2d7/0x3a0 kernel/locking/lockdep.c:5893 Code: dc 77 11 00 00 00 00 eb b5 e8 55 b9 ff 09 f7 c3 00 02 00 00 74 b9 65 48 8b 05 d5 96 77 11 48 3b 44 24 28 75 44 fb 48 83 c4 30 <5b> 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc 48 8d 3d 42 6b 73 RSP: 0018:ffffc90000007148 EFLAGS: 00000286 RAX: 56379a82e828e700 RBX: 0000000000000202 RCX: 0000000000000101 RDX: 0000000000000003 RSI: ffffffff8e15b390 RDI: ffffffff8c278880 RBP: ffff88801db98b90 R08: ffffc9000000722f R09: 0000000000000000 R10: ffffc90000007220 R11: ffffffffa02094cc R12: 0000000000000003 R13: 0000000000000003 R14: ffffffff8e7603e0 R15: ffff88801db98000 rcu_lock_release include/linux/rcupdate.h:322 [inline] rcu_read_unlock include/linux/rcupdate.h:881 [inline] trace_call_bpf+0x7bf/0xb70 kernel/trace/bpf_trace.c:147 perf_trace_run_bpf_submit+0x78/0x170 kernel/events/core.c:11301 do_perf_trace_lock include/trace/events/lock.h:50 [inline] perf_trace_lock+0x326/0x3f0 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 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 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25 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 poison_kmalloc_redzone mm/kasan/common.c:398 [inline] __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:415 kasan_kmalloc include/linux/kasan.h:263 [inline] __kmalloc_cache_noprof+0x31c/0x660 mm/slub.c:5297 kmalloc_noprof include/linux/slab.h:962 [inline] dst_cow_metrics_generic+0x56/0x1c0 net/core/dst.c:194 dst_metrics_write_ptr include/net/dst.h:136 [inline] dst_metric_set include/net/dst.h:197 [inline] icmp6_dst_alloc+0x265/0x440 net/ipv6/route.c:3348 ndisc_send_skb+0x42d/0x14e0 net/ipv6/ndisc.c:491 addrconf_rs_timer+0x395/0x6d0 net/ipv6/addrconf.c:4042 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:should_resched arch/x86/include/asm/preempt.h:104 [inline] RIP: 0010:__local_bh_enable_ip+0xd8/0x130 kernel/softirq.c:457 Code: 8b e8 0c 6c 19 0a 65 66 8b 05 7c 2e 91 11 66 85 c0 75 32 bf 01 00 00 00 e8 c5 dd 0b 00 e8 a0 1f 45 00 fb 65 8b 05 58 2e 91 11 <85> c0 75 05 e8 ff 38 ac ff 5b 41 5e c3 cc cc cc cc cc 90 0f 0b 90 RSP: 0018:ffffc90004bdf588 EFLAGS: 00000206 RAX: 0000000000000000 RBX: 0000000000000201 RCX: 0000000000000046 RDX: 0000000000000000 RSI: ffffffff8deec7f5 RDI: ffffffff8c278880 RBP: ffffc90004bdf6b0 R08: ffffffff90111eb7 R09: 1ffffffff20223d6 R10: dffffc0000000000 R11: fffffbfff20223d7 R12: 0000000000000036 R13: ffff88802c68b608 R14: ffffffff89869f41 R15: dffffc0000000000 spin_unlock_bh include/linux/spinlock.h:395 [inline] ptr_ring_consume_bh include/linux/ptr_ring.h:377 [inline] page_pool_empty_ring net/core/page_pool.c:1111 [inline] page_pool_scrub net/core/page_pool.c:1183 [inline] page_pool_release+0x7e1/0xd90 net/core/page_pool.c:1191 page_pool_destroy+0x1d5/0x3f0 net/core/page_pool.c:1300 xdp_test_run_teardown net/bpf/test_run.c:207 [inline] bpf_test_run_xdp_live+0x1c52/0x1cf0 net/bpf/test_run.c:385 bpf_prog_test_run_xdp+0x81c/0x1160 net/bpf/test_run.c:1397 bpf_prog_test_run+0x2c7/0x340 kernel/bpf/syscall.c:4722 __sys_bpf+0x643/0x950 kernel/bpf/syscall.c:6247 __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: 0033:0x7f5cca39c629 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:00007f5ccb2b1028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f5cca615fa0 RCX: 00007f5cca39c629 RDX: 0000000000000048 RSI: 0000200000000600 RDI: 000000000000000a RBP: 00007f5cca432b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f5cca616038 R14: 00007f5cca615fa0 R15: 00007fff9157f268