watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.6:64272] Modules linked in: irq event stamp: 8159345 hardirqs last enabled at (8159344): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (8159345): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (8126150): [] __irq_exit_rcu+0xcc/0x110 softirqs last disabled at (8126153): [] __irq_exit_rcu+0xcc/0x110 CPU: 1 PID: 64272 Comm: syz-executor.6 Not tainted 6.2.0-rc5-next-20230127 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__unwind_start+0x491/0x7c0 Code: fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 d3 02 00 00 4c 89 f2 49 8b 77 28 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 <0f> 85 9f 02 00 00 49 8b 7f 48 4c 89 e1 4c 89 fa e8 4a 9b f5 ff 85 RSP: 0018:ffff88806cf09790 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffff88806cf09878 RCX: ffffffff8113437e RDX: 1ffff1100d9e1305 RSI: ffff88804b635040 RDI: ffff88806cf09850 RBP: ffff88804b635040 R08: 0000000000000001 R09: ffff88806cf097e0 R10: ffffed10089075da R11: 0000000000000001 R12: ffff88806cf09800 R13: ffff88806cf09808 R14: ffff88806cf09828 R15: ffff88806cf097e0 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555556609098 CR3: 0000000015a18000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: arch_stack_walk+0x63/0xf0 stack_trace_save+0x90/0xd0 set_track_prepare+0x74/0xd0 __create_object+0x3b2/0xc90 __kmem_cache_alloc_node+0x1ed/0x310 __kmalloc_node_track_caller+0x43/0xb0 __alloc_skb+0xe9/0x310 skb_copy+0x13d/0x3f0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb08/0x1330 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x567/0xb10 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xcb0 hrtimer_run_softirq+0x14c/0x310 __do_softirq+0x258/0x8a2 __irq_exit_rcu+0xcc/0x110 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x6e/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:__kasan_check_write+0x8/0x20 Code: f1 ff ff 66 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 f3 0f 1e fa 48 8b 0c 24 <89> f6 ba 01 00 00 00 e9 5c f1 ff ff 66 66 2e 0f 1f 84 00 00 00 00 RSP: 0018:ffff88804b2b7590 EFLAGS: 00000293 RAX: 0000000000000000 RBX: ffffea0000e83ab4 RCX: ffffffff81652d8c RDX: ffff88804b635040 RSI: 0000000000000004 RDI: ffffea0000e83ab4 RBP: ffff888038d7a990 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000021 R11: 0000000000000001 R12: 0000000000000021 R13: dffffc0000000000 R14: 0000000000000130 R15: ffffea0000e83a80 release_pages+0x28c/0x1040 tlb_batch_pages_flush+0xa8/0x1b0 unmap_page_range+0x1aec/0x2da0 unmap_single_vma+0x194/0x2a0 unmap_vmas+0x233/0x390 exit_mmap+0x15b/0x6a0 mmput+0xd5/0x390 do_exit+0x9c6/0x2800 do_group_exit+0xd4/0x2a0 get_signal+0x23c8/0x2450 arch_do_signal_or_restart+0x79/0x590 exit_to_user_mode_prepare+0xeb/0x180 irqentry_exit_to_user_mode+0x9/0x30 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0033:0x7f10802422f1 Code: Unable to access opcode bytes at 0x7f10802422c7. RSP: 002b:00007f107d8111a0 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 00007f1080303330 RDX: 00000000002a7516 RSI: 0000000000000000 RDI: 00007f10802f572b RBP: 00007f10802f5f6d R08: 0000000000000c4b R09: 00007ffe715b1080 R10: 00007ffe715b1090 R11: 00000000005aa05c R12: 00007f10803aef60 R13: 00007ffe7157646f R14: 00007f107d811300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.2.0-rc5-next-20230127 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:queued_spin_lock_slowpath+0x128/0xc50 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 d5 09 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 6e 1f 00 00 f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e4 00 00 RSP: 0018:ffff88806ce09a28 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff84478edb RDX: fffffbfff0b48f89 RSI: 0000000000000004 RDI: ffffffff85a47c40 RBP: ffffffff85a47c40 R08: 0000000000000000 R09: ffffffff85a47c43 R10: fffffbfff0b48f88 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b48f88 R14: 0000000000000001 R15: 1ffff1100d9c1346 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055a700f2b648 CR3: 0000000015a18000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: do_raw_spin_lock+0x1e0/0x270 mac80211_hwsim_tx_frame_no_nl.isra.0+0x6de/0x1330 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x567/0xb10 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xcb0 hrtimer_run_softirq+0x14c/0x310 __do_softirq+0x258/0x8a2 __irq_exit_rcu+0xcc/0x110 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x6e/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:default_idle+0xf/0x20 Code: 4c 01 c7 4c 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d 83 dd 3c 00 fb f4 e9 9f 0e 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffffffff85407e38 EFLAGS: 00000206 RAX: 0000000000a32ad7 RBX: ffffffff8542a800 RCX: ffffffff84458ffe RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff812835c0 RBP: 0000000000000000 R08: 0000000000000001 R09: ffff88806ce34f83 R10: ffffed100d9c69f0 R11: 0000000000000001 R12: fffffbfff0a85500 R13: ffffffff85d0ff90 R14: 0000000000000000 R15: 0000000000000000 default_idle_call+0x67/0xa0 do_idle+0x300/0x3d0 cpu_startup_entry+0x18/0x20 rest_init+0x166/0x290 arch_call_rest_init+0x13/0x40 start_kernel+0x372/0x530 secondary_startup_64_no_verify+0xe0/0xeb ---------------- Code disassembly (best guess), 3 bytes skipped: 0: 48 c1 ea 03 shr $0x3,%rdx 4: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 8: 0f 85 d3 02 00 00 jne 0x2e1 e: 4c 89 f2 mov %r14,%rdx 11: 49 8b 77 28 mov 0x28(%r15),%rsi 15: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 1c: fc ff df 1f: 48 c1 ea 03 shr $0x3,%rdx 23: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) * 27: 0f 85 9f 02 00 00 jne 0x2cc <-- trapping instruction 2d: 49 8b 7f 48 mov 0x48(%r15),%rdi 31: 4c 89 e1 mov %r12,%rcx 34: 4c 89 fa mov %r15,%rdx 37: e8 4a 9b f5 ff callq 0xfff59b86 3c: 85 .byte 0x85