watchdog: BUG: soft lockup - CPU#1 stuck for 143s! [syz.1.2:5957] Modules linked in: irq event stamp: 10406323 hardirqs last enabled at (10406322): [] irqentry_exit+0x63/0x90 kernel/entry/common.c:357 hardirqs last disabled at (10406323): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1049 softirqs last enabled at (10396468): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last enabled at (10396468): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last enabled at (10396468): [] __irq_exit_rcu+0xfb/0x220 kernel/softirq.c:680 softirqs last disabled at (10396471): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last disabled at (10396471): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last disabled at (10396471): [] __irq_exit_rcu+0xfb/0x220 kernel/softirq.c:680 CPU: 1 UID: 0 PID: 5957 Comm: syz.1.2 Not tainted 6.15.0-rc3-syzkaller-g2fc7a47c0b0a #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:perf_trace_buf_alloc+0x0/0x2a0 kernel/trace/trace_event_perf.c:399 Code: cc cc cc e8 92 24 f6 ff 42 80 3c 2b 00 75 d0 eb d6 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 55 41 57 41 56 41 55 41 54 53 50 48 89 d3 49 89 f6 41 RSP: 0018:ffffc90000a08198 EFLAGS: 00000203 RAX: 000000000000000d RBX: ffffc90000a08220 RCX: ffffe8ffffd23460 RDX: ffffc90000a08240 RSI: ffffc90000a08220 RDI: 000000000000002c RBP: ffffc90000a082a8 R08: ffffffff81ce619a R09: 0000000000000000 R10: ffffc90000a083a0 R11: ffffffffa000084c R12: dffffc0000000000 R13: ffffffff8ec0d1a0 R14: 000000000000002c R15: ffffffff93686020 FS: 00007f8ca47f66c0(0000) GS:ffff88812509a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30b1cff8 CR3: 0000000068f3c000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_perf_trace_lock include/trace/events/lock.h:50 [inline] perf_trace_lock+0x1ef/0x4a0 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+0x3b4/0x3e0 kernel/locking/lockdep.c:5877 rcu_lock_release include/linux/rcupdate.h:341 [inline] rcu_read_unlock include/linux/rcupdate.h:871 [inline] trace_call_bpf+0x60b/0x8a0 kernel/trace/bpf_trace.c:148 perf_trace_run_bpf_submit+0x82/0x180 kernel/events/core.c:10788 do_perf_trace_lock include/trace/events/lock.h:50 [inline] perf_trace_lock+0x39c/0x4a0 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+0x3b4/0x3e0 kernel/locking/lockdep.c:5877 rcu_lock_release include/linux/rcupdate.h:341 [inline] rcu_read_unlock include/linux/rcupdate.h:871 [inline] class_rcu_destructor include/linux/rcupdate.h:1155 [inline] unwind_next_frame+0x1a9f/0x23b0 arch/x86/kernel/unwind_orc.c:680 arch_stack_walk+0x11e/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x11a/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:576 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:233 [inline] slab_free_hook mm/slub.c:2398 [inline] slab_free mm/slub.c:4656 [inline] kmem_cache_free+0x197/0x410 mm/slub.c:4758 mac80211_hwsim_beacon_tx+0x3c4/0x860 drivers/net/wireless/virtual/mac80211_hwsim.c:2317 __iterate_interfaces+0x297/0x570 net/mac80211/util.c:761 ieee80211_iterate_active_interfaces_atomic+0xd8/0x170 net/mac80211/util.c:797 mac80211_hwsim_beacon+0xd4/0x1f0 drivers/net/wireless/virtual/mac80211_hwsim.c:2347 __run_hrtimer kernel/time/hrtimer.c:1761 [inline] __hrtimer_run_queues+0x5a6/0xd40 kernel/time/hrtimer.c:1825 hrtimer_run_softirq+0x19a/0x2c0 kernel/time/hrtimer.c:1842 handle_softirqs+0x2d6/0x9b0 kernel/softirq.c:579 __do_softirq kernel/softirq.c:613 [inline] invoke_softirq kernel/softirq.c:453 [inline] __irq_exit_rcu+0xfb/0x220 kernel/softirq.c:680 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline] sysvec_irq_work+0xa3/0xc0 arch/x86/kernel/irq_work.c:17 asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:738 RIP: 0010:finish_task_switch+0x1ea/0x870 kernel/sched/core.c:5250 Code: c9 50 e8 e9 2e 0d 00 48 83 c4 08 4c 89 f7 e8 ad 41 00 00 0f 1f 44 00 00 4c 89 f7 e8 10 28 a1 0a e8 4b 76 39 00 fb 48 8b 5d c0 <48> 8d bb 18 16 00 00 48 89 f8 48 c1 e8 03 49 be 00 00 00 00 00 fc RSP: 0018:ffffc90004d47708 EFLAGS: 00000286 RAX: fea607a9890e2f00 RBX: ffff88802ffa9e00 RCX: 0000000000000006 RDX: 0000000000000006 RSI: ffffffff8e6497ef RDI: ffffffff8ca1b680 RBP: ffffc90004d47750 R08: ffffffff905fe577 R09: 1ffffffff20bfcae R10: dffffc0000000000 R11: fffffbfff20bfcaf R12: 1ffff110170e7526 R13: dffffc0000000000 R14: ffff8880b8739b00 R15: ffff8880b873a930 context_switch kernel/sched/core.c:5385 [inline] __schedule+0x1b90/0x5240 kernel/sched/core.c:6767 preempt_schedule_irq+0xfe/0x1c0 kernel/sched/core.c:7090 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:lsm_file_alloc security/security.c:728 [inline] RIP: 0010:security_file_alloc+0x23/0x310 security/security.c:2858 Code: 90 90 90 90 90 90 90 66 0f 1f 00 55 41 57 41 56 53 49 89 ff 49 be 00 00 00 00 00 fc ff df e8 c4 5f 10 fd 48 8b 3d fd e5 dc 15 <48> 85 ff 74 1d be c0 0d 00 00 e8 9e fb 6e fd 48 85 c0 0f 84 99 00 RSP: 0018:ffffc90004d47b18 EFLAGS: 00000287 RAX: ffffffff84b25d5c RBX: ffff88803137ca80 RCX: 0000000000080000 RDX: ffffc9000dca9000 RSI: 0000000000002ce6 RDI: ffff888140408140 RBP: dffffc0000000000 R08: ffff88802c1a9407 R09: 1ffff11005835280 R10: dffffc0000000000 R11: ffffed1005835281 R12: 0000000000000002 R13: ffff88803137caf0 R14: dffffc0000000000 R15: ffff88803137ca80 init_file+0x90/0x300 fs/file_table.c:156 alloc_empty_file+0x70/0x1d0 fs/file_table.c:238 alloc_file fs/file_table.c:351 [inline] alloc_file_pseudo+0x206/0x320 fs/file_table.c:380 __anon_inode_getfile fs/anon_inodes.c:109 [inline] anon_inode_getfile+0xc8/0x180 fs/anon_inodes.c:147 __do_sys_perf_event_open kernel/events/core.c:13350 [inline] __se_sys_perf_event_open+0x2250/0x34b0 kernel/events/core.c:13061 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8ca698e169 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:00007f8ca47f6038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f8ca6bb6080 RCX: 00007f8ca698e169 RDX: ffff7fffffffffff RSI: 0000000000000000 RDI: 0000200000000500 RBP: 00007f8ca6a10a68 R08: 0000000000000009 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f8ca6bb6080 R15: 00007ffe74e58338 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 5951 Comm: syz.3.11 Not tainted 6.15.0-rc3-syzkaller-g2fc7a47c0b0a #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:get_current arch/x86/include/asm/current.h:25 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x70 kernel/kcov.c:216 Code: 8b 3d 34 07 b7 0c 48 89 de 5b e9 03 c7 5e 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 <65> 48 8b 0c 25 08 60 68 93 65 8b 15 f8 a2 a5 11 81 e2 00 01 ff 00 RSP: 0018:ffffc90000006898 EFLAGS: 00000246 RAX: ffffffff8ba9fd22 RBX: 0000000000000000 RCX: ffff88805f988000 RDX: 0000000000000002 RSI: ffffffff90381fb0 RDI: 0000000000000000 RBP: ffffc90000006cb0 R08: 0000000000000001 R09: ffffffff8ba9f682 R10: 0000000000000002 R11: ffff88805f988000 R12: ffff8880326ec3c2 R13: 00000000000000dd R14: ffffc90000006fa8 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff888124f9a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0b9bf7fab8 CR3: 0000000034fd8000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: _ieee802_11_parse_elems_full+0x39d2/0x4bb0 net/mac80211/parse.c:417 ieee802_11_parse_elems_full+0x14f7/0x2f10 net/mac80211/parse.c:1064 ieee802_11_parse_elems_crc net/mac80211/ieee80211_i.h:2402 [inline] ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2409 [inline] ieee80211_inform_bss+0x166/0x10e0 net/mac80211/scan.c:79 rdev_inform_bss net/wireless/rdev-ops.h:418 [inline] cfg80211_inform_single_bss_data+0xf5f/0x1ed0 net/wireless/scan.c:2367 cfg80211_inform_bss_data+0x3c5/0x5860 net/wireless/scan.c:3222 cfg80211_inform_bss_frame_data+0x3c5/0x720 net/wireless/scan.c:3317 ieee80211_bss_info_update+0x8ac/0xbc0 net/mac80211/scan.c:226 ieee80211_scan_rx+0x526/0x9c0 net/mac80211/scan.c:340 __ieee80211_rx_handle_packet net/mac80211/rx.c:5179 [inline] ieee80211_rx_list+0x28cd/0x3490 net/mac80211/rx.c:5416 ieee80211_rx_napi+0x187/0x3c0 net/mac80211/rx.c:5439 ieee80211_rx include/net/mac80211.h:5179 [inline] ieee80211_handle_queued_frames+0xe7/0x1e0 net/mac80211/main.c:441 tasklet_action_common+0x428/0x620 kernel/softirq.c:829 handle_softirqs+0x2d6/0x9b0 kernel/softirq.c:579 __do_softirq kernel/softirq.c:613 [inline] invoke_softirq kernel/softirq.c:453 [inline] __irq_exit_rcu+0xfb/0x220 kernel/softirq.c:680 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696 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:__sanitizer_cov_trace_pc+0x0/0x70 kernel/kcov.c:210 Code: 89 fb e8 23 00 00 00 48 8b 3d 34 07 b7 0c 48 89 de 5b e9 03 c7 5e 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 48 8b 04 24 65 48 8b 0c 25 08 60 68 93 65 8b 15 f8 a2 RSP: 0018:ffffc90004ce7190 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8219c15c RDX: ffff88805f988000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: dffffc0000000001 R08: ffffffff8219c180 R09: 1ffffd400031b496 R10: dffffc0000000000 R11: fffff9400031b497 R12: ffffea00018da480 R13: ffffea00018da480 R14: 0000000000000001 R15: ffff88802758ab40 __folio_mod_stat mm/rmap.c:1410 [inline] __folio_remove_rmap mm/rmap.c:1777 [inline] folio_remove_rmap_ptes+0x383/0xa70 mm/rmap.c:1804 zap_present_folio_ptes mm/memory.c:1525 [inline] zap_present_ptes mm/memory.c:1586 [inline] do_zap_pte_range mm/memory.c:1687 [inline] zap_pte_range mm/memory.c:1731 [inline] zap_pmd_range mm/memory.c:1823 [inline] zap_pud_range mm/memory.c:1852 [inline] zap_p4d_range mm/memory.c:1873 [inline] unmap_page_range+0x21cf/0x44d0 mm/memory.c:1894 unmap_vmas+0x3ce/0x5f0 mm/memory.c:1984 exit_mmap+0x2bc/0xde0 mm/mmap.c:1284 __mmput+0x115/0x420 kernel/fork.c:1379 exit_mm+0x221/0x310 kernel/exit.c:589 do_exit+0x994/0x27f0 kernel/exit.c:940 do_group_exit+0x207/0x2c0 kernel/exit.c:1102 get_signal+0x1696/0x1730 kernel/signal.c:3034 arch_do_signal_or_restart+0x98/0x810 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:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0xce/0x340 kernel/entry/common.c:218 do_syscall_64+0x100/0x210 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f33b478e169 Code: Unable to access opcode bytes at 0x7f33b478e13f. RSP: 002b:00007f33b25f6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: 0000000000000004 RBX: 00007f33b49b5fa0 RCX: 00007f33b478e169 RDX: 0000000000000300 RSI: 0000000000000002 RDI: 0000000000000011 RBP: 00007f33b4810a68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f33b49b5fa0 R15: 00007ffeae69e518