watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [syz-executor.2:10811] Modules linked in: irq event stamp: 4676931 hardirqs last enabled at (4676930): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4676931): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (4589750): [] irq_exit_rcu+0x11f/0x190 softirqs last disabled at (4589753): [] irq_exit_rcu+0x11f/0x190 CPU: 0 PID: 10811 Comm: syz-executor.2 Not tainted 6.2.0-rc4-next-20230116 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__stack_depot_save+0x49/0x4e0 Code: 38 65 48 8b 04 25 28 00 00 00 48 89 44 24 30 31 c0 48 c7 44 24 28 00 00 00 00 e8 a2 68 15 ff 85 c0 74 09 80 3d 6f 0a ba 05 00 <74> 35 44 89 e0 81 e5 ff ff ff 07 c1 e0 1b 09 e8 48 8b 4c 24 30 65 RSP: 0018:ffff88806ce09740 EFLAGS: 00000246 RAX: 0000000000000011 RBX: 0000000000000001 RCX: 0000000000092820 RDX: 0000000000000000 RSI: 0000000000000025 RDI: ffff88806ce09830 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000001 R14: 0000000000092820 R15: ffff88806ce097b0 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005653e0cde110 CR3: 0000000042366000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: kasan_save_stack+0x35/0x50 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x59/0x70 kmem_cache_alloc+0x172/0x300 __create_object+0x3d/0xc40 kmem_cache_alloc_node+0x215/0x310 __alloc_skb+0x21a/0x310 skb_copy+0x13d/0x3d0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb6d/0x1360 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xb10 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xcb0 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x274/0x8ff irq_exit_rcu+0x11f/0x190 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:finish_task_switch.isra.0+0x237/0x8a0 Code: 89 ff 48 c7 03 00 00 00 00 e8 c5 5d 22 03 4d 85 e4 75 ba 4c 89 ff e8 28 39 22 03 e8 53 65 2e 00 fb 65 48 8b 1c 25 80 89 03 00 <48> 8d bb f0 13 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 RSP: 0018:ffff88804593f560 EFLAGS: 00000202 RAX: 000000000002e6bf RBX: ffff888015988000 RCX: ffffffff812b827f RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffff88804593f5a0 R08: 0000000000000001 R09: ffffffff8765896f R10: fffffbfff0ecb12d R11: 0000000000000001 R12: ffff88806ce39398 R13: ffff8880101cb580 R14: ffff8880101cba28 R15: ffff88806ce39380 __schedule+0xbb8/0x2b20 preempt_schedule_common+0x45/0xb0 __cond_resched+0x1b/0x30 unmap_page_range+0x11b3/0x2d90 unmap_single_vma+0x190/0x2a0 unmap_vmas+0x225/0x370 exit_mmap+0x158/0x6a0 mmput+0xd5/0x390 do_exit+0x99b/0x2780 do_group_exit+0xd4/0x2a0 get_signal+0x2255/0x2390 arch_do_signal_or_restart+0x79/0x5a0 exit_to_user_mode_prepare+0xf5/0x190 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fde87ae3a04 Code: Unable to access opcode bytes at 0x7fde87ae39da. RSP: 002b:00007fde850a5e20 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: fffffffffffffffe RBX: 00007fde87b7a970 RCX: 00007fde87ae3a04 RDX: 0000000000000002 RSI: 00007fde850a5f40 RDI: 00000000ffffff9c RBP: 00007fde850a5f40 R08: 0000000000000000 R09: 00007fde850a60f0 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002 R13: 0000000000000006 R14: 0000000020000070 R15: 0000000000000002 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 10821 Comm: syz-executor.3 Not tainted 6.2.0-rc4-next-20230116 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__lock_acquire+0x761/0x5e90 Code: 0f 84 66 07 00 00 31 c0 e9 0c ff ff ff 4c 8b 6c 24 58 40 38 6c 24 50 76 0d e8 fb e6 e4 00 85 c0 0f 85 90 0c 00 00 8b 7c 24 08 <85> ff 0f 84 35 01 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7d 21 RSP: 0018:ffff88806cf095b0 EFLAGS: 00000046 RAX: 0000000000000001 RBX: ffff88801ea03ee0 RCX: ffffffff812bbaa6 RDX: fffffbfff0ecb12a RSI: 0000000000000008 RDI: 0000000000000001 RBP: ffffffff8765c1e0 R08: 0000000000000000 R09: ffffffff8765894f R10: fffffbfff0ecb129 R11: 0000000000000001 R12: ffff88801ea03580 R13: ffff88801ea03f58 R14: 0000000000000000 R15: 0000000000066000 FS: 00007f61af5c7700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020030000 CR3: 000000001a144000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: lock_acquire.part.0+0x120/0x340 ktime_get+0x80/0x1f0 clockevents_program_event+0x14f/0x360 tick_program_event+0xb0/0x150 hrtimer_interrupt+0x36a/0x770 __sysvec_apic_timer_interrupt+0x148/0x510 sysvec_apic_timer_interrupt+0x3f/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:queued_spin_lock_slowpath+0x128/0xc90 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 e6 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 fe 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:ffff88806cf09a30 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff8444744b RDX: fffffbfff0b4911d RSI: 0000000000000004 RDI: ffffffff85a488e0 RBP: ffffffff85a488e0 R08: 0000000000000000 R09: ffffffff85a488e3 R10: fffffbfff0b4911c R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b4911c R14: 0000000000000001 R15: 1ffff1100d9e1347 do_raw_spin_lock+0x1e0/0x270 mac80211_hwsim_tx_frame_no_nl.isra.0+0x6f1/0x1360 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xb10 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xcb0 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x274/0x8ff irq_exit_rcu+0x11f/0x190 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:__sanitizer_cov_trace_cmp8+0x8/0x20 Code: 00 00 00 e9 ea fe ff ff 66 2e 0f 1f 84 00 00 00 00 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 <48> 89 f2 48 89 fe bf 06 00 00 00 e9 b8 fe ff ff 0f 1f 84 00 00 00 RSP: 0018:ffff88804579f9c8 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 000000000000000a RCX: ffffffff842af6ee RDX: ffff88801ea03580 RSI: 00007ffee9104000 RDI: ffffffffffffffff RBP: ffff88804579fb40 R08: 0000000000000001 R09: 0000000000000000 R10: 000000000000000a R11: 0000000000000001 R12: ffffffffffffffff R13: 0000000000000001 R14: ffff888015b02800 R15: 00007ffee9104000 mas_next_nentry+0x1be/0x9e0 mas_find+0x1d6/0xe00 acct_collect+0x1ca/0x880 do_exit+0x792/0x2780 do_group_exit+0xd4/0x2a0 get_signal+0x2255/0x2390 arch_do_signal_or_restart+0x79/0x5a0 exit_to_user_mode_prepare+0xf5/0x190 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f61b2093b19 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:00007f61af5c7188 EFLAGS: 00000246 ORIG_RAX: 00000000000000be RAX: ffffffffffffffef RBX: 00007f61b21a70e0 RCX: 00007f61b2093b19 RDX: 0000000020000400 RSI: 00000000200003c0 RDI: 0000000000000006 RBP: 00007f61b20edf6d R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffee91018cf R14: 00007f61af5c7300 R15: 0000000000022000 loop7: detected capacity change from 0 to 40 ---------------- Code disassembly (best guess): 0: 38 65 48 cmp %ah,0x48(%rbp) 3: 8b 04 25 28 00 00 00 mov 0x28,%eax a: 48 89 44 24 30 mov %rax,0x30(%rsp) f: 31 c0 xor %eax,%eax 11: 48 c7 44 24 28 00 00 movq $0x0,0x28(%rsp) 18: 00 00 1a: e8 a2 68 15 ff callq 0xff1568c1 1f: 85 c0 test %eax,%eax 21: 74 09 je 0x2c 23: 80 3d 6f 0a ba 05 00 cmpb $0x0,0x5ba0a6f(%rip) # 0x5ba0a99 * 2a: 74 35 je 0x61 <-- trapping instruction 2c: 44 89 e0 mov %r12d,%eax 2f: 81 e5 ff ff ff 07 and $0x7ffffff,%ebp 35: c1 e0 1b shl $0x1b,%eax 38: 09 e8 or %ebp,%eax 3a: 48 8b 4c 24 30 mov 0x30(%rsp),%rcx 3f: 65 gs