watchdog: BUG: soft lockup - CPU#1 stuck for 143s! [syz.9.449:7929] Modules linked in: irq event stamp: 10967127 hardirqs last enabled at (10967126): [] irqentry_exit+0x63/0x90 kernel/entry/common.c:357 hardirqs last disabled at (10967127): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1049 softirqs last enabled at (10114): [] __do_softirq kernel/softirq.c:588 [inline] softirqs last enabled at (10114): [] invoke_softirq kernel/softirq.c:428 [inline] softirqs last enabled at (10114): [] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 softirqs last disabled at (10117): [] __do_softirq kernel/softirq.c:588 [inline] softirqs last disabled at (10117): [] invoke_softirq kernel/softirq.c:428 [inline] softirqs last disabled at (10117): [] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 CPU: 1 UID: 0 PID: 7929 Comm: syz.9.449 Not tainted 6.12.0-rc7-syzkaller-g9f8e716d46c6 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:preempt_count_sub+0x67/0x170 kernel/sched/core.c:5835 Code: 81 e1 ff ff ff 7f 39 d9 7c 27 81 fb fe 00 00 00 77 07 0f b6 c0 85 c0 74 5f 65 8b 05 6b 97 a0 7e f7 db 65 01 1d 62 97 a0 7e 5b <41> 5e c3 cc cc cc cc 90 e8 fc e6 56 03 85 c0 74 3a 48 c7 c0 90 3c RSP: 0018:ffffc90000a179e0 EFLAGS: 00000213 RAX: 0000000000000303 RBX: ffffc90000a17ad0 RCX: 0000000000000303 RDX: dffffc0000000000 RSI: ffffc900046e8000 RDI: 0000000000000001 RBP: ffffc90000a17ac0 R08: ffffc900046eff00 R09: 0000000000000000 R10: ffffc90000a17b10 R11: fffff52000142f64 R12: dffffc0000000000 R13: ffffc90000a17ac0 R14: dffffc0000000000 R15: ffffc900046eff10 FS: 00007f82f76156c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000005a790000 CR4: 00000000003526f0 DR0: 0000000020000300 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: unwind_next_frame+0x18e6/0x22d0 arch/x86/kernel/unwind_orc.c:672 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x59/0x70 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:230 [inline] slab_free_hook mm/slub.c:2342 [inline] slab_free mm/slub.c:4579 [inline] kfree+0x1a0/0x440 mm/slub.c:4727 ieee80211_inform_bss+0xbb2/0x1080 net/mac80211/scan.c:160 rdev_inform_bss net/wireless/rdev-ops.h:418 [inline] cfg80211_inform_single_bss_data+0xec1/0x2090 net/wireless/scan.c:2333 cfg80211_inform_bss_data+0x3ce/0x5e80 net/wireless/scan.c:3188 cfg80211_inform_bss_frame_data+0x3b8/0x720 net/wireless/scan.c:3283 ieee80211_bss_info_update+0x8a7/0xbc0 net/mac80211/scan.c:226 ieee80211_scan_rx+0x526/0x9c0 net/mac80211/scan.c:340 __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:441 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:find_next_bit include/linux/find.h:66 [inline] RIP: 0010:smp_call_function_many_cond+0x134d/0x2ca0 kernel/smp.c:834 Code: 07 fe c1 38 c1 0f 8c 7a ff ff ff 48 8b bc 24 90 00 00 00 e8 e5 d1 75 00 e9 68 ff ff ff e8 db f5 0b 00 45 31 ed e9 7b 02 00 00 ce f5 0b 00 eb 05 e8 c7 f5 0b 00 bf 01 00 00 00 8b 9c 24 d8 00 RSP: 0018:ffffc900046ef580 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88806d5b3c00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc900046ef780 R08: ffffffff8188e6b4 R09: 1ffff110170e7f92 R10: dffffc0000000000 R11: ffffed10170e7f93 R12: dffffc0000000000 R13: ffff8880b873fc80 R14: 0000000000000001 R15: ffff8880b873fc88 on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1051 on_each_cpu include/linux/smp.h:71 [inline] text_poke_sync arch/x86/kernel/alternative.c:2085 [inline] text_poke_bp_batch+0x726/0xb30 arch/x86/kernel/alternative.c:2357 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: 0033:0x7f82f677e719 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:00007f82f7615038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f82f6935f80 RCX: 00007f82f677e719 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000040 RBP: 00007f82f67f175e R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f82f6935f80 R15: 00007ffdb0a2ae98 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 5202 Comm: klogd Not tainted 6.12.0-rc7-syzkaller-g9f8e716d46c6 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:qlist_free_all+0x6d/0x140 mm/kasan/quarantine.c:177 Code: e0 c0 49 8b 4c 05 08 f6 c1 01 0f 85 a8 00 00 00 4c 01 e8 66 90 0f b6 48 33 c1 e1 18 81 f9 00 00 00 f5 48 0f 45 c5 48 8b 58 08 <4d> 8b 34 24 48 63 83 c0 00 00 00 49 29 c4 48 89 df 4c 89 e6 e8 4a RSP: 0018:ffffc9000337f668 EFLAGS: 00010246 RAX: ffffea000096f800 RBX: ffff88801bafb780 RCX: 00000000f5000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff8142ffac R09: ffffffff81fed74f R10: dffffc0000000000 R11: ffffed10170c8959 R12: ffff888025be3300 R13: ffffea0000000000 R14: ffff888025be3300 R15: 0000000000000000 FS: 00007fb64ca91380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbb7265aff8 CR3: 000000007d328000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:247 [inline] slab_post_alloc_hook mm/slub.c:4085 [inline] slab_alloc_node mm/slub.c:4134 [inline] kmem_cache_alloc_node_noprof+0x16b/0x320 mm/slub.c:4186 __alloc_skb+0x1c3/0x440 net/core/skbuff.c:668 alloc_skb include/linux/skbuff.h:1322 [inline] alloc_skb_with_frags+0xc3/0x820 net/core/skbuff.c:6612 sock_alloc_send_pskb+0x91a/0xa60 net/core/sock.c:2883 unix_dgram_sendmsg+0x6d3/0x1f80 net/unix/af_unix.c:2027 sock_sendmsg_nosec net/socket.c:729 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:744 __sys_sendto+0x39b/0x4f0 net/socket.c:2214 __do_sys_sendto net/socket.c:2226 [inline] __se_sys_sendto net/socket.c:2222 [inline] __x64_sys_sendto+0xde/0x100 net/socket.c:2222 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: 0033:0x7fb64cbf39b5 Code: 8b 44 24 08 48 83 c4 28 48 98 c3 48 98 c3 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 26 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 7a 48 8b 15 44 c4 0c 00 f7 d8 64 89 02 48 83 RSP: 002b:00007ffdf6c03e68 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fb64cbf39b5 RDX: 0000000000000056 RSI: 0000564bdaae43d0 RDI: 0000000000000003 RBP: 0000564bdaade910 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000013 R13: 00007fb64cd81212 R14: 00007ffdf6c03f68 R15: 0000000000000000