watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.4:12325] Modules linked in: irq event stamp: 2698331 hardirqs last enabled at (2698330): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (2698331): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (2698202): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (2698205): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (2698205): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 0 PID: 12325 Comm: syz-executor.4 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:debug_spin_lock_before kernel/locking/spinlock_debug.c:83 [inline] RIP: 0010:do_raw_spin_lock+0x3e/0x220 kernel/locking/spinlock_debug.c:112 Code: c7 04 48 89 fa 53 48 c1 ea 03 48 83 ec 08 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 97 01 00 00 8b 45 04 <3d> ad 4e ad de 0f 85 47 01 00 00 4c 8d 6d 10 48 b8 00 00 00 00 00 RSP: 0018:ffff8880ba007918 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 00000000dead4ead RBX: dffffc0000000000 RCX: 000000000000158c RDX: 0000000000000000 RSI: 000000001bdecf91 RDI: ffff88809925a17c RBP: ffff88809925a178 R08: ffffffff8cd221a0 R09: 0000000000000002 R10: ffff8880b42f8d58 R11: 0000000000000000 R12: 0000000000000001 R13: ffff8880ba007dd8 R14: ffff8880ba007dd8 R15: 0000000000000080 FS: 00007f556c875700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f545df18718 CR3: 00000000b404a000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: spin_lock_bh include/linux/spinlock.h:334 [inline] ieee80211_rx_handlers+0xc9/0x9730 net/mac80211/rx.c:3663 ieee80211_invoke_rx_handlers net/mac80211/rx.c:3726 [inline] ieee80211_prepare_and_rx_handle+0x23fa/0x6790 net/mac80211/rx.c:4423 __ieee80211_rx_handle_packet net/mac80211/rx.c:4483 [inline] ieee80211_rx_napi+0x108d/0x2470 net/mac80211/rx.c:4672 ieee80211_rx include/net/mac80211.h:4109 [inline] ieee80211_tasklet_handler+0x101/0x160 net/mac80211/main.c:229 tasklet_action_common.constprop.0+0x265/0x360 kernel/softirq.c:522 __do_softirq+0x265/0x980 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x215/0x260 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:__read_once_size include/linux/compiler.h:263 [inline] RIP: 0010:trylock_clear_pending kernel/locking/qspinlock_paravirt.h:123 [inline] RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:436 [inline] RIP: 0010:__pv_queued_spin_lock_slowpath+0x3b0/0xae0 kernel/locking/qspinlock.c:474 Code: 00 48 c1 e9 03 83 e3 07 41 be 01 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8d 2c 01 eb 0c f3 90 41 83 ec 01 0f 84 38 04 00 00 <41> 0f b6 45 00 38 d8 7f 08 84 c0 0f 85 75 05 00 00 0f b6 45 00 84 RSP: 0018:ffff888085f7f6e0 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000003 RBX: 0000000000000000 RCX: 1ffffffff13e3af8 RDX: 0000000000000001 RSI: ffffffff8167a995 RDI: 0000000000000286 RBP: ffffffff89f1d7c0 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000002b09 R13: fffffbfff13e3af8 R14: 0000000000000001 R15: ffff8880ba02be00 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:679 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:53 [inline] queued_spin_lock include/asm-generic/qspinlock.h:88 [inline] do_raw_spin_lock+0x189/0x220 kernel/locking/spinlock_debug.c:113 spin_lock include/linux/spinlock.h:329 [inline] __change_page_attr_set_clr+0x18c/0x28b0 arch/x86/mm/pageattr.c:1394 change_page_attr_set_clr+0x348/0xc60 arch/x86/mm/pageattr.c:1517 change_page_attr_clear arch/x86/mm/pageattr.c:1560 [inline] set_memory_ro+0x78/0xa0 arch/x86/mm/pageattr.c:1789 bpf_prog_lock_ro include/linux/filter.h:714 [inline] bpf_prog_select_runtime+0xb2/0x620 kernel/bpf/core.c:1587 bpf_prog_load+0xcf9/0x1230 kernel/bpf/syscall.c:1454 __do_sys_bpf kernel/bpf/syscall.c:2423 [inline] __se_sys_bpf+0xf22/0x3a20 kernel/bpf/syscall.c:2384 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f556df000e9 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f556c875168 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f556e012f60 RCX: 00007f556df000e9 RDX: 0000000000000048 RSI: 0000000020000200 RDI: 0000000000000005 RBP: 00007f556df5a08d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdb230488f R14: 00007f556c875300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 12320 Comm: syz-executor.4 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__read_once_size include/linux/compiler.h:263 [inline] RIP: 0010:csd_lock_wait kernel/smp.c:108 [inline] RIP: 0010:smp_call_function_single+0x1db/0x420 kernel/smp.c:302 Code: 00 e8 09 04 0a 00 48 8b 4c 24 08 48 8b 54 24 10 48 8d 74 24 40 8b 7c 24 1c e8 a1 f9 ff ff 41 89 c5 eb 07 e8 e7 03 0a 00 f3 90 <44> 8b 64 24 58 31 ff 41 83 e4 01 44 89 e6 e8 42 05 0a 00 45 85 e4 RSP: 0018:ffff888078077a60 EFLAGS: 00000293 RAX: ffff88809c6e00c0 RBX: 1ffff1100f00ef50 RCX: ffffffff8158819e RDX: 0000000000000000 RSI: ffffffff81588189 RDI: 0000000000000005 RBP: ffff888078077b30 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: ffff8880b42f84bc FS: 0000555555dee400(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b33427000 CR3: 00000000b404a000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: task_function_call+0xe0/0x170 kernel/events/core.c:115 event_function_call+0x228/0x430 kernel/events/core.c:283 perf_remove_from_context+0x9b/0x1c0 kernel/events/core.c:2113 perf_event_release_kernel+0x169/0xcd0 kernel/events/core.c:4607 perf_release+0x33/0x40 kernel/events/core.c:4703 __fput+0x2ce/0x890 fs/file_table.c:278 task_work_run+0x148/0x1c0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f556deb2d2b Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44 RSP: 002b:00007ffdb23048f0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f556deb2d2b RDX: 0000001b33420000 RSI: 00007f556de77000 RDI: 0000000000000003 RBP: 00007f556e014960 R08: 0000000000000000 R09: 00000000bbb56b55 R10: 000b50af7565a517 R11: 0000000000000293 R12: 0000000000019d3e R13: 00007ffdb23049f0 R14: 00007f556e013030 R15: 0000000000000032 ---------------- Code disassembly (best guess): 0: c7 04 48 89 fa 53 48 movl $0x4853fa89,(%rax,%rcx,2) 7: c1 ea 03 shr $0x3,%edx a: 48 83 ec 08 sub $0x8,%rsp e: 0f b6 14 02 movzbl (%rdx,%rax,1),%edx 12: 48 89 f8 mov %rdi,%rax 15: 83 e0 07 and $0x7,%eax 18: 83 c0 03 add $0x3,%eax 1b: 38 d0 cmp %dl,%al 1d: 7c 08 jl 0x27 1f: 84 d2 test %dl,%dl 21: 0f 85 97 01 00 00 jne 0x1be 27: 8b 45 04 mov 0x4(%rbp),%eax * 2a: 3d ad 4e ad de cmp $0xdead4ead,%eax <-- trapping instruction 2f: 0f 85 47 01 00 00 jne 0x17c 35: 4c 8d 6d 10 lea 0x10(%rbp),%r13 39: 48 rex.W 3a: b8 00 00 00 00 mov $0x0,%eax