watchdog: BUG: soft lockup - CPU#0 stuck for 143s! [syz.4.247:6549] Modules linked in: irq event stamp: 11595819 hardirqs last enabled at (11595818): [] irqentry_exit+0x74/0x90 kernel/entry/common.c:310 hardirqs last disabled at (11595819): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1050 softirqs last enabled at (11022056): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last enabled at (11022056): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last enabled at (11022056): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 softirqs last disabled at (11022059): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last disabled at (11022059): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last disabled at (11022059): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 CPU: 0 UID: 0 PID: 6549 Comm: syz.4.247 Not tainted 6.15.0-syzkaller-gcd7312a78f36 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:130 [inline] RIP: 0010:memory_is_poisoned mm/kasan/generic.c:161 [inline] RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline] RIP: 0010:kasan_check_range+0x79/0x2c0 mm/kasan/generic.c:189 Code: 00 49 89 ff 49 c1 ef 03 49 ba 00 00 00 00 00 fc ff df 4f 8d 1c 17 49 ff c8 4d 89 c1 49 c1 e9 03 48 bb 01 00 00 00 00 fc ff df <4d> 8d 34 19 4d 89 f4 4d 29 dc 49 83 fc 10 7f 29 4d 85 e4 0f 84 41 RSP: 0018:ffffc90000007b68 EFLAGS: 00000a03 RAX: ffffffff81ae2101 RBX: dffffc0000000001 RCX: ffffffff81ae21d6 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8fa101f0 RBP: ffffc90000007c90 R08: ffffffff8fa101f7 R09: 1ffffffff1f4203e R10: dffffc0000000000 R11: fffffbfff1f4203e R12: 1ffff92000000f78 R13: ffff88805dcd5708 R14: 0000000000000000 R15: 1ffffffff1f4203e FS: 00007fd3520a06c0(0000) GS:ffff888125c54000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc97a8e56c0 CR3: 00000000330bc000 CR4: 00000000003526f0 DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: instrument_atomic_read include/linux/instrumented.h:68 [inline] _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline] cpumask_test_cpu include/linux/cpumask.h:638 [inline] cpu_online include/linux/cpumask.h:1197 [inline] trace_timer_expire_entry include/trace/events/timer.h:92 [inline] call_timer_fn+0x126/0x5f0 kernel/time/timer.c:1746 expire_timers kernel/time/timer.c:1798 [inline] __run_timers kernel/time/timer.c:2372 [inline] __run_timer_base+0x61a/0x860 kernel/time/timer.c:2384 run_timer_base kernel/time/timer.c:2393 [inline] run_timer_softirq+0xb7/0x180 kernel/time/timer.c:2403 handle_softirqs+0x286/0x870 kernel/softirq.c:579 __do_softirq kernel/softirq.c:613 [inline] invoke_softirq kernel/softirq.c:453 [inline] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1050 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:check_kcov_mode kernel/kcov.c:194 [inline] RIP: 0010:write_comp_data kernel/kcov.c:246 [inline] RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x37/0x90 kernel/kcov.c:314 Code: 08 c0 9c 92 65 8b 0d 88 5a dc 10 81 e1 00 01 ff 00 74 11 81 f9 00 01 00 00 75 5b 83 ba 3c 16 00 00 00 74 52 8b 8a 18 16 00 00 <83> f9 03 75 47 48 8b 8a 20 16 00 00 44 8b 8a 1c 16 00 00 49 c1 e1 RSP: 0018:ffffc90003ebf4d8 EFLAGS: 00000246 RAX: ffffffff81cb85c8 RBX: 0000000000000001 RCX: 0000000000000002 RDX: ffff88807abd3c00 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90003ebf5d8 R08: 0000000000000000 R09: ffffffff81cb84c7 R10: dffffc0000000000 R11: fffff91fffdc0405 R12: 0000000000000001 R13: ffffc90003ebf560 R14: ffff88802f7f0d80 R15: ffffffff8e00e108 trace_call_bpf+0x1b8/0x850 kernel/trace/bpf_trace.c:146 perf_trace_run_bpf_submit+0x78/0x170 kernel/events/core.c:10866 do_perf_trace_lock_acquire include/trace/events/lock.h:24 [inline] perf_trace_lock_acquire+0x335/0x410 include/trace/events/lock.h:24 __do_trace_lock_acquire include/trace/events/lock.h:24 [inline] trace_lock_acquire include/trace/events/lock.h:24 [inline] lock_acquire+0x311/0x360 kernel/locking/lockdep.c:5834 rcu_lock_acquire include/linux/rcupdate.h:331 [inline] rcu_read_lock include/linux/rcupdate.h:841 [inline] class_rcu_constructor include/linux/rcupdate.h:1155 [inline] unwind_next_frame+0xc2/0x2390 arch/x86/kernel/unwind_orc.c:479 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:377 [inline] __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:394 kasan_kmalloc include/linux/kasan.h:260 [inline] __do_kmalloc_node mm/slub.c:4328 [inline] __kmalloc_noprof+0x27a/0x4f0 mm/slub.c:4340 kmalloc_noprof include/linux/slab.h:909 [inline] sk_prot_alloc+0xe7/0x220 net/core/sock.c:2247 sk_alloc+0x3a/0x370 net/core/sock.c:2303 __netlink_create+0x65/0x260 net/netlink/af_netlink.c:629 netlink_create+0x3ca/0x590 net/netlink/af_netlink.c:687 __sock_create+0x4b3/0x9f0 net/socket.c:1541 sock_create net/socket.c:1599 [inline] __sys_socket_create net/socket.c:1636 [inline] __sys_socket+0xd7/0x1b0 net/socket.c:1683 __do_sys_socket net/socket.c:1697 [inline] __se_sys_socket net/socket.c:1695 [inline] __x64_sys_socket+0x7a/0x90 net/socket.c:1695 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd35118e929 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:00007fd3520a0038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007fd3513b5fa0 RCX: 00007fd35118e929 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000010 RBP: 00007fd351210b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fd3513b5fa0 R15: 00007ffdc3454ec8 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 6557 Comm: syz.3.248 Not tainted 6.15.0-syzkaller-gcd7312a78f36 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:debug_lockdep_rcu_enabled+0xd/0x40 kernel/rcu/update.c:320 Code: cc cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 31 c0 83 3d 27 f3 3a 04 00 <74> 1e 83 3d 4a 23 3b 04 00 74 15 65 48 8b 0c 25 08 c0 9c 92 31 c0 RSP: 0018:ffffc90000a07048 EFLAGS: 00000002 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000010100 RDX: ffff88801e7bda00 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90000a07158 R08: ffffc90000a070ef R09: 0000000000000000 R10: ffffc90000a070e0 R11: fffff52000140e1e R12: 0000000000000001 R13: ffffc90000a070e0 R14: ffff88802f7f0d80 R15: ffffffff8e00e108 FS: 00007f1d97e506c0(0000) GS:ffff888125d54000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055884d1434d8 CR3: 00000000286aa000 CR4: 00000000003526f0 DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: rcu_read_lock_held_common kernel/rcu/update.c:105 [inline] rcu_read_lock_held+0xa/0x50 kernel/rcu/update.c:349 bpf_prog_run_array include/linux/bpf.h:2223 [inline] trace_call_bpf+0x1f4/0x850 kernel/trace/bpf_trace.c:146 perf_trace_run_bpf_submit+0x78/0x170 kernel/events/core.c:10866 do_perf_trace_lock_acquire include/trace/events/lock.h:24 [inline] perf_trace_lock_acquire+0x335/0x410 include/trace/events/lock.h:24 __do_trace_lock_acquire include/trace/events/lock.h:24 [inline] trace_lock_acquire include/trace/events/lock.h:24 [inline] lock_acquire+0x311/0x360 kernel/locking/lockdep.c:5834 rcu_lock_acquire include/linux/rcupdate.h:331 [inline] rcu_read_lock include/linux/rcupdate.h:841 [inline] __perf_event_output kernel/events/core.c:8429 [inline] perf_event_output_forward+0xb0/0x430 kernel/events/core.c:8452 __perf_event_overflow+0x7cc/0xe10 kernel/events/core.c:10327 perf_swevent_hrtimer+0x3c5/0x550 kernel/events/core.c:11717 __run_hrtimer kernel/time/hrtimer.c:1761 [inline] __hrtimer_run_queues+0x4dd/0xc60 kernel/time/hrtimer.c:1825 hrtimer_interrupt+0x45b/0xaa0 kernel/time/hrtimer.c:1887 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1039 [inline] __sysvec_apic_timer_interrupt+0x108/0x410 arch/x86/kernel/apic/apic.c:1056 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline] sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1050 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:unwind_next_frame+0x395/0x2390 arch/x86/kernel/unwind_orc.c:505 Code: e0 48 c1 e8 03 0f b6 04 28 84 c0 0f 85 6d 19 00 00 4c 89 e8 48 c1 e8 03 0f b6 04 28 84 c0 0f 85 80 19 00 00 41 0f b6 44 24 01 <83> e0 07 0f 84 75 15 00 00 83 f8 01 4c 8b 7c 24 48 48 bd 00 00 00 RSP: 0018:ffffc90000a07b98 EFLAGS: 00000246 RAX: 0000000000000002 RBX: ffffffff9023fbb4 RCX: ffffffff9023fbb8 RDX: ffffffff90d6f6aa RSI: ffffffff90d6f69e RDI: ffffffff8be287a0 RBP: dffffc0000000000 R08: 0000000000000003 R09: ffffffff81729de5 R10: ffffc90000a07900 R11: ffffffffa02019c8 R12: ffffffff90d6f6ae R13: ffffffff90d6f6af R14: ffffc90000a07c68 R15: ffffffff9023fbb4 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 kasan_save_stack+0x3e/0x60 mm/kasan/common.c:47 kasan_record_aux_stack+0xbd/0xd0 mm/kasan/generic.c:548 kvfree_call_rcu+0xbb/0x410 mm/slab_common.c:1962 cfg80211_update_known_bss+0x634/0x1330 net/wireless/scan.c:1925 __cfg80211_bss_update+0x147/0x2120 net/wireless/scan.c:1972 cfg80211_inform_single_bss_data+0xba9/0x1ac0 net/wireless/scan.c:2363 cfg80211_inform_bss_data+0x1fb/0x3b20 net/wireless/scan.c:3222 cfg80211_inform_bss_frame_data+0x362/0x700 net/wireless/scan.c:3317 ieee80211_bss_info_update+0x746/0x9e0 net/mac80211/scan.c:226 ieee80211_scan_rx+0x527/0x9b0 net/mac80211/scan.c:356 __ieee80211_rx_handle_packet net/mac80211/rx.c:5179 [inline] ieee80211_rx_list+0x22fc/0x2d80 net/mac80211/rx.c:5416 ieee80211_rx_napi+0x1a8/0x3d0 net/mac80211/rx.c:5439 ieee80211_rx include/net/mac80211.h:5185 [inline] ieee80211_handle_queued_frames+0xe8/0x1f0 net/mac80211/main.c:441 tasklet_action_common+0x36c/0x580 kernel/softirq.c:829 handle_softirqs+0x286/0x870 kernel/softirq.c:579 __do_softirq kernel/softirq.c:613 [inline] invoke_softirq kernel/softirq.c:453 [inline] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1050 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:arch_stack_walk+0x123/0x150 arch/x86/kernel/stacktrace.c:24 Code: 23 09 00 48 85 c0 74 24 48 89 df 48 89 c6 4d 89 f3 2e e8 28 bd 96 1e 84 c0 74 11 4c 89 ff e8 a4 24 09 00 83 bd 78 ff ff ff 00 <75> cf 65 48 8b 05 73 47 33 11 48 3b 45 d8 75 12 48 83 c4 68 5b 41 RSP: 0018:ffffc90003f9e568 EFLAGS: 00000202 RAX: 00000000903c5501 RBX: ffffc90003f9e620 RCX: 7fc6ac6be5319700 RDX: 0000000000000000 RSI: ffffffff8db69c35 RDI: ffff88801e7bda00 RBP: ffffc90003f9e5f0 R08: ffffc90003f9e8d0 R09: 0000000000000000 R10: ffffc90003f9e5b8 R11: fffff520007f3cb9 R12: ffff88801e7bda00 R13: 1ffff920007f3cd8 R14: ffffffff81acf670 R15: ffffc90003f9e568 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 save_stack+0xf5/0x1f0 mm/page_owner.c:156 __set_page_owner+0x8d/0x4a0 mm/page_owner.c:329 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x240/0x2a0 mm/page_alloc.c:1704 prep_new_page mm/page_alloc.c:1712 [inline] get_page_from_freelist+0x21e4/0x22c0 mm/page_alloc.c:3669 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:4959 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2419 alloc_frozen_pages_noprof mm/mempolicy.c:2490 [inline] alloc_pages_noprof+0xa9/0x190 mm/mempolicy.c:2510 get_free_pages_noprof+0xf/0x80 mm/page_alloc.c:5018 __kasan_populate_vmalloc mm/kasan/shadow.c:362 [inline] kasan_populate_vmalloc+0x33/0x1a0 mm/kasan/shadow.c:417 alloc_vmap_area+0xd51/0x1490 mm/vmalloc.c:2084 __get_vm_area_node+0x1f8/0x300 mm/vmalloc.c:3179 __vmalloc_node_range_noprof+0x301/0x12f0 mm/vmalloc.c:3845 __vmalloc_node_noprof mm/vmalloc.c:3948 [inline] vmalloc_noprof+0xb2/0xf0 mm/vmalloc.c:3981 bpf_prog_calc_tag+0xb9/0x620 kernel/bpf/core.c:303 resolve_pseudo_ldimm64+0xbc/0xc50 kernel/bpf/verifier.c:20349 bpf_check+0x1c6b/0x1a240 kernel/bpf/verifier.c:24486 bpf_prog_load+0x1318/0x1930 kernel/bpf/syscall.c:2972 __sys_bpf+0x5f1/0x860 kernel/bpf/syscall.c:5978 __do_sys_bpf kernel/bpf/syscall.c:6085 [inline] __se_sys_bpf kernel/bpf/syscall.c:6083 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:6083 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1d96f8e929 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:00007f1d97e50038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f1d971b6080 RCX: 00007f1d96f8e929 RDX: 0000000000000048 RSI: 00002000000017c0 RDI: 0000000000000005 RBP: 00007f1d97010b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f1d971b6080 R15: 00007ffc3772f5a8