watchdog: BUG: soft lockup - CPU#1 stuck for 143s! [syz.3.26:6003] Modules linked in: irq event stamp: 10739359 hardirqs last enabled at (10739358): [] irqentry_exit+0x63/0x90 kernel/entry/common.c:357 hardirqs last disabled at (10739359): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1049 softirqs last enabled at (10267280): [] __do_softirq kernel/softirq.c:588 [inline] softirqs last enabled at (10267280): [] invoke_softirq kernel/softirq.c:428 [inline] softirqs last enabled at (10267280): [] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 softirqs last disabled at (10267283): [] __do_softirq kernel/softirq.c:588 [inline] softirqs last disabled at (10267283): [] invoke_softirq kernel/softirq.c:428 [inline] softirqs last disabled at (10267283): [] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 CPU: 1 UID: 0 PID: 6003 Comm: syz.3.26 Not tainted 6.12.0-rc4-syzkaller-ga2b4a9cddae8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:kasan_byte_accessible+0x0/0x20 mm/kasan/generic.c:193 Code: 3d ff ff ff 0f b6 d2 e8 3e f1 ff ff 34 01 e9 2e ff 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 <66> 0f 1f 00 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df 0f b6 04 07 RSP: 0018:ffffc90000a179f8 EFLAGS: 00000246 RAX: ffff8880272d9a00 RBX: ffff8880272d9a00 RCX: ffff8880272d9000 RDX: 0000000000000000 RSI: ffff8880272d9a00 RDI: ffff8880272d9a00 RBP: 0000000000212110 R08: ffffffff8142ee9c R09: 1ffffffff285a100 R10: dffffc0000000000 R11: fffffbfff285a101 R12: ffff88801d6d265c R13: ffffea00009cb640 R14: ffffffff8a667fdf R15: ffff88801d6d2640 FS: 00007fcd656376c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30d5ffff CR3: 0000000072d30000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: check_slab_allocation+0xa9/0x110 mm/kasan/common.c:224 kasan_slab_pre_free include/linux/kasan.h:195 [inline] slab_free_hook mm/slub.c:2287 [inline] slab_free mm/slub.c:4579 [inline] kmem_cache_free+0x14c/0x420 mm/slub.c:4681 kfree_skb_reason include/linux/skbuff.h:1262 [inline] kfree_skb include/linux/skbuff.h:1271 [inline] ip6_mc_input+0xa1f/0xc30 net/ipv6/ip6_input.c:587 ip_sabotage_in+0x203/0x290 net/bridge/br_netfilter_hooks.c:1018 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline] nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626 nf_hook include/linux/netfilter.h:269 [inline] NF_HOOK+0x29e/0x450 include/linux/netfilter.h:312 __netif_receive_skb_one_core net/core/dev.c:5666 [inline] __netif_receive_skb+0x1ea/0x650 net/core/dev.c:5779 netif_receive_skb_internal net/core/dev.c:5865 [inline] netif_receive_skb+0x1e8/0x890 net/core/dev.c:5924 NF_HOOK+0x9e/0x400 include/linux/netfilter.h:314 br_handle_frame_finish+0x18ed/0x1fe0 br_nf_hook_thresh+0x472/0x590 br_nf_pre_routing_finish_ipv6+0xaa0/0xdd0 NF_HOOK include/linux/netfilter.h:314 [inline] br_nf_pre_routing_ipv6+0x379/0x770 net/bridge/br_netfilter_ipv6.c:184 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline] nf_hook_bridge_pre net/bridge/br_input.c:277 [inline] br_handle_frame+0x9fd/0x1530 net/bridge/br_input.c:424 __netif_receive_skb_core+0x13e8/0x4570 net/core/dev.c:5560 __netif_receive_skb_one_core net/core/dev.c:5664 [inline] __netif_receive_skb+0x12f/0x650 net/core/dev.c:5779 process_backlog+0x662/0x15b0 net/core/dev.c:6111 __napi_poll+0xcb/0x490 net/core/dev.c:6775 napi_poll net/core/dev.c:6844 [inline] net_rx_action+0x89b/0x1240 net/core/dev.c:6966 handle_softirqs+0x2c5/0x980 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:preempt_schedule+0x0/0xf0 kernel/sched/core.c:6886 Code: 00 00 e8 a3 e5 93 f5 c3 cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 55 48 89 e5 41 57 41 56 41 54 53 48 83 e4 e0 48 83 ec RSP: 0018:ffffc90004407730 EFLAGS: 00000293 RAX: ffffffff8188fc84 RBX: 0000000000000000 RCX: ffff888033d7bc00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90004407780 R08: ffffffff8188fc69 R09: 1ffffffff285a100 R10: dffffc0000000000 R11: fffffbfff285a101 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff901d22a8 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12 on_each_cpu_cond_mask+0x79/0x80 kernel/smp.c:1052 on_each_cpu include/linux/smp.h:71 [inline] text_poke_sync arch/x86/kernel/alternative.c:2085 [inline] text_poke_bp_batch+0x352/0xb30 arch/x86/kernel/alternative.c:2295 text_poke_flush arch/x86/kernel/alternative.c:2486 [inline] text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2493 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146 static_key_enable_cpuslocked+0x136/0x260 kernel/jump_label.c:210 static_key_enable+0x1a/0x20 kernel/jump_label.c:223 tracepoint_add_func+0x953/0x9e0 kernel/tracepoint.c:361 tracepoint_probe_register_prio kernel/tracepoint.c:511 [inline] tracepoint_probe_register+0x105/0x160 kernel/tracepoint.c:531 perf_trace_event_reg kernel/trace/trace_event_perf.c:129 [inline] perf_trace_event_init+0x478/0x930 kernel/trace/trace_event_perf.c:202 perf_trace_init+0x243/0x2e0 kernel/trace/trace_event_perf.c:226 perf_tp_event_init+0x8d/0x110 kernel/events/core.c:10357 perf_try_init_event+0x146/0x810 kernel/events/core.c:11891 perf_init_event kernel/events/core.c:11977 [inline] perf_event_alloc+0x135f/0x2310 kernel/events/core.c:12259 __do_sys_perf_event_open kernel/events/core.c:12766 [inline] __se_sys_perf_event_open+0xb1f/0x3870 kernel/events/core.c:12657 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fcd6477e719 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:00007fcd65637038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007fcd64935f80 RCX: 00007fcd6477e719 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000240 RBP: 00007fcd647f139e R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fcd64935f80 R15: 00007ffea5820628 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 5982 Comm: syz.2.19 Not tainted 6.12.0-rc4-syzkaller-ga2b4a9cddae8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:timekeeping_get_ns+0x20/0x420 Code: 90 90 90 90 90 90 90 90 90 90 55 41 57 41 56 41 55 41 54 53 48 83 ec 38 49 89 fd 48 bd 00 00 00 00 00 fc ff df e8 c0 58 12 00 <4d> 8d 75 10 49 8d 4d 08 4c 89 e8 48 c1 e8 03 48 89 44 24 10 4c 89 RSP: 0018:ffffc90000007608 EFLAGS: 00000006 RAX: ffffffff81827f00 RBX: ffff8880b862c9e8 RCX: ffff888027ea1e00 RDX: 0000000000010100 RSI: 0000000000000000 RDI: ffffffff8e95a6b8 RBP: dffffc0000000000 R08: ffffffff8182e1c0 R09: 1ffffffff203a455 R10: dffffc0000000000 R11: fffffbfff203a456 R12: ffff8880b862c9e8 R13: ffffffff8e95a6b8 R14: ffff8880b862c9e8 R15: 00000000000097fc FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffffb258268 CR3: 0000000067c70000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ktime_get_update_offsets_now+0x90/0x250 kernel/time/timekeeping.c:2449 hrtimer_update_base kernel/time/hrtimer.c:634 [inline] hrtimer_interrupt+0x133/0x990 kernel/time/hrtimer.c:1799 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline] __sysvec_apic_timer_interrupt+0x110/0x420 arch/x86/kernel/apic/apic.c:1055 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:ieee80211_channel_to_khz include/net/cfg80211.h:6421 [inline] RIP: 0010:ieee80211_get_channel_khz+0xe4/0x920 net/wireless/util.c:178 Code: 00 48 8d 68 04 48 89 04 24 4c 8d 68 08 49 ff cc 45 31 f6 48 89 e8 48 c1 e8 03 0f b6 04 10 84 c0 75 52 41 69 5d fc e8 03 00 00 <48> 8d 7d 04 48 89 f8 48 c1 e8 03 0f b6 04 10 84 c0 75 57 41 0f b7 RSP: 0018:ffffc900000078d8 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 000000000024cde0 RCX: dffffc0000000000 RDX: dffffc0000000000 RSI: 000000000000000e RDI: 0000000000000000 RBP: ffff8880281e333c R08: ffffffff8b10e465 R09: 1ffff1100503c52e R10: dffffc0000000000 R11: ffffed100503c52f R12: 000000000000000d R13: ffff8880281e3340 R14: 0000000000000000 R15: 000000000024cde0 ieee80211_scan_rx+0x241/0x9c0 net/mac80211/scan.c:293 __ieee80211_rx_handle_packet net/mac80211/rx.c:5225 [inline] ieee80211_rx_list+0x2b02/0x3780 net/mac80211/rx.c:5462 ieee80211_rx_napi+0x18a/0x3c0 net/mac80211/rx.c:5485 ieee80211_rx include/net/mac80211.h:5138 [inline] ieee80211_handle_queued_frames+0xe7/0x1e0 net/mac80211/main.c:439 tasklet_action_common+0x321/0x4d0 kernel/softirq.c:784 handle_softirqs+0x2c5/0x980 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:lock_release+0x911/0xa30 Code: ff ff 48 8d 8c 24 80 00 00 00 80 e1 07 80 c1 03 38 c1 0f 8c fb fa ff ff 48 8d bc 24 80 00 00 00 e8 84 6e 8e 00 e9 e9 fa ff ff 0f 1e fa 4d 89 ee 4c 89 64 24 10 65 8b 05 38 62 93 7e 83 f8 08 RSP: 0018:ffffc900043371a0 EFLAGS: 00000a02 RAX: f3f3f3f3f300f2f2 RBX: 0000000000000001 RCX: ffff888027ea1e00 RDX: 0000000000000000 RSI: ffffffff820bb6b7 RDI: ffffffff8e939de0 RBP: ffffc900043372e0 R08: ffffffff820bb646 R09: 1ffff11003c8a9d7 R10: dffffc0000000000 R11: ffffed1003c8a9d8 R12: 1ffff92000866e40 R13: ffffffff820bb6b7 R14: 1ffffd40003487db R15: dffffc0000000000 rcu_lock_release include/linux/rcupdate.h:347 [inline] rcu_read_unlock include/linux/rcupdate.h:880 [inline] page_ext_put+0xa3/0xc0 mm/page_ext.c:550 get_and_clear_full_ptes include/linux/pgtable.h:684 [inline] zap_present_folio_ptes mm/memory.c:1496 [inline] zap_present_ptes mm/memory.c:1579 [inline] zap_pte_range mm/memory.c:1621 [inline] zap_pmd_range mm/memory.c:1739 [inline] zap_pud_range mm/memory.c:1768 [inline] zap_p4d_range mm/memory.c:1789 [inline] unmap_page_range+0x2a13/0x40e0 mm/memory.c:1810 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1900 exit_mmap+0x275/0xc40 mm/mmap.c:1874 __mmput+0x115/0x390 kernel/fork.c:1347 exit_mm+0x220/0x310 kernel/exit.c:571 do_exit+0x9b2/0x28e0 kernel/exit.c:926 do_group_exit+0x207/0x2c0 kernel/exit.c:1088 get_signal+0x16a3/0x1740 kernel/signal.c:2917 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb31397e719 Code: Unable to access opcode bytes at 0x7fb31397e6ef. RSP: 002b:00007fb3146db038 EFLAGS: 00000246 ORIG_RAX: 000000000000002f RAX: fffffffffffffe00 RBX: 00007fb313b35f80 RCX: 00007fb31397e719 RDX: 0000000000000000 RSI: 0000000020000400 RDI: 000000000000000e RBP: 00007fb3139f139e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fb313b35f80 R15: 00007ffe1b11ba38