watchdog: BUG: soft lockup - CPU#0 stuck for 21s! [syz-executor.1:13819] Modules linked in: irq event stamp: 4379485 hardirqs last enabled at (4379484): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4379485): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (4353704): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (4353707): [] __irq_exit_rcu+0x11b/0x180 CPU: 0 PID: 13819 Comm: syz-executor.1 Not tainted 6.1.0-next-20221219 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x70 Code: 00 e8 a0 ff ff ff 31 c0 e9 ed 6a f9 02 66 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 <65> 8b 05 4d 5b ba 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b RSP: 0018:ffff88806ce09d70 EFLAGS: 00000202 RAX: 0000000000000000 RBX: ffff8880364b4b40 RCX: ffffffff840ff873 RDX: ffff888042b59ac0 RSI: 0000000000000100 RDI: 0000000000000005 RBP: dffffc0000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000001 R12: ffff8880364b62e8 R13: 0000000000000001 R14: ffff88803d4ea8e0 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555565de6d0 CR3: 0000000005426000 CR4: 0000000000350ef0 Call Trace: __iterate_interfaces+0x141/0x560 ieee80211_iterate_active_interfaces_atomic+0x74/0x180 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xc70 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:write_comp_data+0x10/0x90 Code: 7a 70 f9 02 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 49 89 f1 49 89 d2 49 89 f8 65 8b 05 d8 60 ba 7e <89> c6 81 e6 00 01 00 00 65 48 8b 14 25 00 89 03 00 a9 00 01 ff 00 RSP: 0018:ffff888016e9f580 EFLAGS: 00000296 RAX: 0000000000000000 RBX: 00000000000001fe RCX: ffffffff8162d2ca RDX: 0000000000000116 RSI: 00000000000001fe RDI: 0000000000000004 RBP: ffff88800c6448c0 R08: 0000000000000004 R09: 00000000000001fe R10: 0000000000000116 R11: 0000000000000001 R12: 0000000000000008 R13: dffffc0000000000 R14: 0000000000000116 R15: ffffea0000ee77c0 release_pages+0x18a/0x1040 tlb_batch_pages_flush+0xa8/0x1b0 unmap_page_range+0x164b/0x2c10 unmap_single_vma+0x190/0x2a0 unmap_vmas+0x226/0x380 exit_mmap+0x158/0x680 mmput+0xd5/0x390 do_exit+0x99b/0x2760 do_group_exit+0xd4/0x2a0 get_signal+0x21b7/0x22f0 arch_do_signal_or_restart+0x79/0x5a0 exit_to_user_mode_prepare+0x131/0x1a0 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fa91e484b19 Code: Unable to access opcode bytes at 0x7fa91e484aef. RSP: 002b:00007fa91b9fa188 EFLAGS: 00000246 ORIG_RAX: 0000000000000039 RAX: fffffffffffffff4 RBX: 00007fa91e597f60 RCX: 00007fa91e484b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007fa91e4def6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd272c708f R14: 00007fa91b9fa300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle+0xf/0x20 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: e8 a0 ff ff ff callq 0xffffffa5 5: 31 c0 xor %eax,%eax 7: e9 ed 6a f9 02 jmpq 0x2f96af9 c: 66 0f 1f 84 00 00 00 nopw 0x0(%rax,%rax,1) 13: 00 00 15: 90 nop 16: 90 nop 17: 90 nop 18: 90 nop 19: 90 nop 1a: 90 nop 1b: 90 nop 1c: 90 nop 1d: 90 nop 1e: 90 nop 1f: 90 nop 20: 90 nop 21: 90 nop 22: 90 nop 23: 90 nop 24: 90 nop 25: f3 0f 1e fa endbr64 * 29: 65 8b 05 4d 5b ba 7e mov %gs:0x7eba5b4d(%rip),%eax # 0x7eba5b7d <-- trapping instruction 30: 89 c1 mov %eax,%ecx 32: 48 8b 34 24 mov (%rsp),%rsi 36: 81 e1 00 01 00 00 and $0x100,%ecx 3c: 65 gs 3d: 48 rex.W 3e: 8b .byte 0x8b