watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [syz-executor.3:4521] Modules linked in: irq event stamp: 4722347 hardirqs last enabled at (4722346): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4722347): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (4676244): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (4676247): [] __irq_exit_rcu+0x11b/0x180 CPU: 0 PID: 4521 Comm: syz-executor.3 Not tainted 6.1.0-rc5-next-20221117 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:stack_trace_consume_entry+0x7e/0x170 Code: 0f 8e ad 00 00 00 31 c0 3b 6b 08 0f 83 81 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 0c 48 89 fa 48 c1 ea 03 0f b6 14 02 <48> 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 98 00 00 00 8b RSP: 0018:ffff88806ce09778 EFLAGS: 00000213 RAX: dffffc0000000000 RBX: ffff88806ce09860 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff844031f7 RDI: ffff88806ce0986c RBP: 000000000000000e R08: ffffffff860956dc R09: ffffffff860956e0 R10: ffffed100d9c1300 R11: ffff88806ce097d8 R12: ffff88806ce09860 R13: 0000000000000000 R14: ffff88801a793580 R15: 0000000000000820 FS: 00007f02313d7700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055cf7ee74790 CR3: 000000003f2b0000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x77/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x5c/0x70 kmem_cache_alloc_node+0x1f4/0x420 __alloc_skb+0x21a/0x310 __netdev_alloc_skb+0x76/0x3e0 __ieee80211_beacon_get+0x3de/0x1380 ieee80211_beacon_get_tim+0x99/0x4f0 mac80211_hwsim_beacon_tx+0x1d2/0xab0 __iterate_interfaces+0x2d3/0x560 ieee80211_iterate_active_interfaces_atomic+0x74/0x180 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x541/0xb50 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x8f9 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x9/0x30 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:__orc_find+0x6f/0xf0 Code: 72 4d 4c 89 e0 48 29 e8 48 89 c2 48 c1 e8 3f 48 c1 fa 02 48 01 d0 48 d1 f8 48 8d 5c 85 00 48 89 d8 48 c1 e8 03 42 0f b6 14 38 <48> 89 d8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 50 48 63 03 48 01 RSP: 0018:ffff888043f27528 EFLAGS: 00000212 RAX: 1ffffffff0bb993d RBX: ffffffff85dcc9e8 RCX: ffffffff81826e85 RDX: 0000000000000000 RSI: ffffffff860fd6e6 RDI: ffffffff85dcc9e8 RBP: ffffffff85dcc9e8 R08: ffffffff860fd6e6 R09: ffffffff86182c6e R10: ffffed10087e4ecb R11: 0000000000038001 R12: ffffffff85dcc9e8 R13: ffffffff85dcc9e8 R14: ffffffff85dcc9e8 R15: dffffc0000000000 unwind_next_frame+0x2b1/0x2130 arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x5c/0x70 kmem_cache_alloc+0x1e0/0x410 __create_object+0x3d/0xc00 kmem_cache_alloc+0x272/0x410 security_file_alloc+0x38/0x170 __alloc_file+0xb6/0x240 alloc_empty_file+0x71/0x170 path_openat+0xd4/0x29b0 do_filp_open+0x1ba/0x410 do_sys_openat2+0x171/0x4c0 __x64_sys_openat+0x143/0x200 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f0233e61b19 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f02313d7188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f0233f74f60 RCX: 00007f0233e61b19 RDX: 0000000000105802 RSI: 00000000200001c0 RDI: ffffffffffffff9c RBP: 00007f0233ebbf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd5b3731ef R14: 00007f02313d7300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 4510 Comm: syz-executor.1 Not tainted 6.1.0-rc5-next-20221117 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__orc_find+0x6f/0xf0 Code: 72 4d 4c 89 e0 48 29 e8 48 89 c2 48 c1 e8 3f 48 c1 fa 02 48 01 d0 48 d1 f8 48 8d 5c 85 00 48 89 d8 48 c1 e8 03 42 0f b6 14 38 <48> 89 d8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 50 48 63 03 48 01 RSP: 0018:ffff88806cf09628 EFLAGS: 00000213 RAX: 1ffffffff0bb2fad RBX: ffffffff85d97d6c RCX: ffffffff81496587 RDX: 0000000000000000 RSI: ffffffff860ae41a RDI: ffffffff85d97d60 RBP: ffffffff85d97d60 R08: ffffffff860ae41a R09: ffffffff8607cf42 R10: ffff88806cf09ff8 R11: 0000000000038001 R12: ffffffff85d97d78 R13: ffffffff85d97d60 R14: ffffffff85d97d60 R15: dffffc0000000000 FS: 00007f160a646700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0231395718 CR3: 000000001a6e6000 CR4: 0000000000350ee0 Call Trace: unwind_next_frame+0x2b1/0x2130 arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x5c/0x70 kmem_cache_alloc+0x1e0/0x410 __create_object+0x3d/0xc00 kmem_cache_alloc_node+0x282/0x420 __alloc_skb+0x21a/0x310 __netdev_alloc_skb+0x76/0x3e0 __ieee80211_beacon_get+0x3de/0x1380 ieee80211_beacon_get_tim+0x99/0x4f0 mac80211_hwsim_beacon_tx+0x1d2/0xab0 __iterate_interfaces+0x2d3/0x560 ieee80211_iterate_active_interfaces_atomic+0x74/0x180 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x541/0xb50 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x8f9 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x9/0x30 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:lock_release+0x3e1/0x750 Code: ff ff ff ff 65 0f c1 05 9d 7a d6 7e 83 f8 01 0f 85 b1 01 00 00 48 f7 04 24 00 02 00 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c5 48 c7 45 00 00 00 00 00 c7 45 08 00 00 00 00 48 8b 84 24 RSP: 0018:ffff8880439ef600 EFLAGS: 00000206 RAX: dffffc0000000000 RBX: 1d1997bb3365f1ca RCX: ffff8880439ef650 RDX: 1ffff11002b617da RSI: 0000000000000000 RDI: 0000000000000000 RBP: 1ffff1100873dec2 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000003 R13: 0000000000000004 R14: ffff888015b0bed8 R15: ffff888015b0b580 __is_insn_slot_addr+0x148/0x250 kernel_text_address+0x5b/0xc0 __kernel_text_address+0xd/0x40 unwind_get_return_address+0x59/0xa0 arch_stack_walk+0x9d/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 kasan_save_free_info+0x2e/0x50 __kasan_slab_free+0x10a/0x190 kmem_cache_free+0xfb/0x610 mas_destroy+0x2d1/0x560 mas_store_prealloc+0xf4/0x160 mmap_region+0xeb0/0x1b90 do_mmap+0x82c/0xf50 ioctx_alloc+0x7eb/0x1e10 __x64_sys_io_setup+0x138/0x300 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f160d0d0b19 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f160a646188 EFLAGS: 00000246 ORIG_RAX: 00000000000000ce RAX: ffffffffffffffda RBX: 00007f160d1e3f60 RCX: 00007f160d0d0b19 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000009 RBP: 00007f160d12af6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe05e4c64f R14: 00007f160a646300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: 0f 8e ad 00 00 00 jle 0xb3 6: 31 c0 xor %eax,%eax 8: 3b 6b 08 cmp 0x8(%rbx),%ebp b: 0f 83 81 00 00 00 jae 0x92 11: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 18: fc ff df 1b: 48 8d 7b 0c lea 0xc(%rbx),%rdi 1f: 48 89 fa mov %rdi,%rdx 22: 48 c1 ea 03 shr $0x3,%rdx 26: 0f b6 14 02 movzbl (%rdx,%rax,1),%edx * 2a: 48 89 f8 mov %rdi,%rax <-- trapping instruction 2d: 83 e0 07 and $0x7,%eax 30: 83 c0 03 add $0x3,%eax 33: 38 d0 cmp %dl,%al 35: 7c 08 jl 0x3f 37: 84 d2 test %dl,%dl 39: 0f 85 98 00 00 00 jne 0xd7 3f: 8b .byte 0x8b