watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.7:6996] Modules linked in: irq event stamp: 6065925 hardirqs last enabled at (6065924): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (6065925): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (6010778): [] irq_exit_rcu+0x11f/0x190 softirqs last disabled at (6010781): [] irq_exit_rcu+0x11f/0x190 CPU: 1 PID: 6996 Comm: syz-executor.7 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: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 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055555692bc58 CR3: 0000000005482000 CR4: 0000000000350ee0 Call Trace: 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:preempt_schedule_common+0x2/0xb0 Code: ff e8 b2 58 3a fd e9 74 ff ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 41 55 <41> 54 49 bc 00 00 00 00 00 fc ff df 55 65 48 8b 2c 25 80 89 03 00 RSP: 0018:ffff888020017708 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 00007fbfe3ffa000 RCX: 0000000000000001 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880440108f0 RBP: 0000000000000004 R08: 0000000000000006 R09: 00007fbfe3ffa000 R10: 00007fbfe4000000 R11: 0000000000000001 R12: ffff888009482a00 R13: ffff888020017af8 R14: dffffc0000000000 R15: 00007fbfe4000000 __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 irqentry_exit_to_user_mode+0x9/0x30 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0033:0x7fbfe5dc963c Code: Unable to access opcode bytes at 0x7fbfe5dc9612. RSP: 002b:00007fbfe33981a0 EFLAGS: 00000207 RAX: 0000000000000004 RBX: 00007fbfe5f35f60 RCX: 00007fbfe5f35f60 RDX: ffffffffffffffff RSI: 00007fbfe5dc942e RDI: 0000000020000280 RBP: 00007fbfe5e7cf6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff47224c1f R14: 00007fbfe3398300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 7031 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:ktime_get+0x40/0x1f0 Code: 00 8b 1d 3f e2 96 04 31 ff 89 de e8 ea 52 0f 00 85 db 0f 85 9b 01 00 00 49 bf 00 00 00 00 00 fc ff df e8 a3 56 0f 00 9c 5b fa <81> e3 00 02 00 00 31 ff 48 89 de e8 f0 52 0f 00 48 85 db 0f 85 27 RSP: 0018:ffff88806ce09490 EFLAGS: 00000046 RAX: 0000000000000000 RBX: 0000000000000046 RCX: 0000000000000100 RDX: ffff88801eb6d040 RSI: ffffffff813a2bcd RDI: 0000000000000005 RBP: ffff88806ce28140 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000005a71ed1f06 R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000561172795648 CR3: 0000000016862000 CR4: 0000000000350ef0 Call Trace: 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:unwind_next_frame+0x1b7/0x2130 Code: 81 ee 00 00 00 81 48 c1 ee 08 41 8d 43 ff 39 c6 0f 83 8c 15 00 00 48 b8 00 00 00 00 00 fc ff df 89 f2 48 8d 3c 95 50 21 4a 86 <48> 89 f9 48 c1 e9 03 0f b6 0c 01 48 89 f8 83 e0 07 83 c0 03 38 c8 RSP: 0018:ffff88806ce096b8 EFLAGS: 00000283 RAX: dffffc0000000000 RBX: 0000000000000002 RCX: 1ffff1100d9c12f2 RDX: 00000000000039a2 RSI: 00000000000039a2 RDI: ffffffff864b07d8 RBP: ffff88806ce09790 R08: ffffffff8609d492 R09: ffffffff8609d496 R10: fffffbfff0ecb131 R11: 0000000000038001 R12: ffff88806ce09779 R13: ffff88806ce09798 R14: ffff88806ce09738 R15: ffffffff8139a2c5 arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_kmalloc+0x7f/0x90 __kmalloc_node_track_caller+0x53/0xb0 __alloc_skb+0xe9/0x310 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:__might_resched+0x173/0x2f0 Code: 48 85 d2 0f 84 15 80 10 03 5b 5d 41 5c 41 5d 41 5e e9 15 8a 22 03 9c 58 f6 c4 02 0f 84 22 ff ff ff 65 4c 8b 2c 25 80 89 03 00 <48> b8 00 00 00 00 00 fc ff df 49 8d 7d 2c 48 89 fa 48 c1 ea 03 0f RSP: 0018:ffff88801f2ff6d0 EFLAGS: 00000202 RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000001 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88801eb6d434 RBP: ffffffff848e9820 R08: 0000000000000006 R09: 00007f0a3ab4a000 R10: 00007f0a3ac00000 R11: 0000000000000001 R12: 00000000000005d1 R13: ffff88801eb6d040 R14: ffff88801eb6d040 R15: 00007f0a3ac00000 unmap_page_range+0x11ae/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: 0033:0x7f0a3b8f4b19 Code: Unable to access opcode bytes at 0x7f0a3b8f4aef. RSP: 002b:00007f0a38e28218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: 0000000000000001 RBX: 00007f0a3ba080e8 RCX: 00007f0a3b8f4b19 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f0a3ba080ec RBP: 00007f0a3ba080e0 R08: 000000000000000e R09: 0000000000000000 R10: 0000000000000008 R11: 0000000000000246 R12: 00007f0a3ba080ec R13: 00007ffc41a2375f R14: 00007f0a38e28300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 00 65 48 add %ah,0x48(%rbp) 5: 2b 04 25 28 00 00 00 sub 0x28,%eax c: 0f 85 e6 0a 00 00 jne 0xaf8 12: 48 81 c4 88 00 00 00 add $0x88,%rsp 19: 5b pop %rbx 1a: 5d pop %rbp 1b: 41 5c pop %r12 1d: 41 5d pop %r13 1f: 41 5e pop %r14 21: 41 5f pop %r15 23: e9 fe 1f 00 00 jmpq 0x2026 28: f3 90 pause * 2a: e9 71 ff ff ff jmpq 0xffffffa0 <-- trapping instruction 2f: 44 8b 74 24 48 mov 0x48(%rsp),%r14d 34: 41 81 fe 00 01 00 00 cmp $0x100,%r14d 3b: 0f .byte 0xf 3c: 84 e4 test %ah,%ah