watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.0:8324] Modules linked in: irq event stamp: 3708437 hardirqs last enabled at (3708436): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (3708437): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (3691172): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (3691175): [] __irq_exit_rcu+0x11b/0x180 CPU: 0 PID: 8324 Comm: syz-executor.0 Not tainted 6.2.0-rc3-next-20230109 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:lock_acquire.part.0+0xa7/0x340 Code: 65 8b 05 7c 68 d6 7e 85 c0 0f 85 0a 01 00 00 65 48 8b 2c 25 80 89 03 00 48 8d bd 5c 09 00 00 48 89 f8 48 c1 e8 03 0f b6 14 10 <48> 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 45 02 00 00 8b RSP: 0018:ffff88806ce09ab0 EFLAGS: 00000217 RAX: 1ffff11002cb47db RBX: 1ffff1100d9c1358 RCX: 0000000000000002 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880165a3edc RBP: ffff8880165a3580 R08: 0000000000000000 R09: 0000000000000000 R10: fffffbfff0ba18ba R11: 0000000000000001 R12: 0000000000000002 R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff856088a0 FS: 00007ff0c2224700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056186a6231c8 CR3: 000000001a292000 CR4: 0000000000350ef0 Call Trace: ieee80211_get_buffered_bc+0xb8/0x8a0 mac80211_hwsim_beacon_tx+0x5c1/0xb10 __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+0x1c7/0x913 __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:_raw_spin_unlock_irqrestore+0x32/0x60 Code: 48 83 c7 18 53 48 89 f3 48 8b 74 24 10 e8 76 c1 e7 fc 48 89 ef e8 be 38 e8 fc 80 e7 02 74 06 e8 74 33 0c fd fb bf 01 00 00 00 29 86 dd fc 65 8b 05 aa 33 bf 7b 85 c0 74 07 5b 5d e9 5b 29 00 RSP: 0018:ffff888044ebf7b0 EFLAGS: 00000202 RAX: 00000000001b3e73 RBX: 0000000000000246 RCX: ffffffff812b799f RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffffffff856d1f00 R08: 0000000000000001 R09: ffffffff8764e91f R10: fffffbfff0ec9d23 R11: 0000000000000001 R12: fffffbfff0ba18f4 R13: 0000000000000008 R14: 0000000000000cc0 R15: 0000000000000001 kmemleak_alloc_percpu+0xa5/0x140 pcpu_alloc+0x7ec/0x10d0 alloc_vfsmnt+0xfd/0x6c0 clone_mnt+0x6c/0xd90 copy_tree+0x3b4/0xa60 copy_mnt_ns+0x1a9/0xae0 create_new_namespaces+0xd6/0xb30 copy_namespaces+0x414/0x500 copy_process+0x2a5e/0x7390 kernel_clone+0xeb/0x8c0 __do_sys_clone3+0x1d5/0x2e0 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7ff0c4caeb19 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:00007ff0c2224188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007ff0c4dc1f60 RCX: 00007ff0c4caeb19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 00000000200001c0 RBP: 00007ff0c4d08f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd4236f8ef R14: 00007ff0c2224300 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): 0: 65 8b 05 7c 68 d6 7e mov %gs:0x7ed6687c(%rip),%eax # 0x7ed66883 7: 85 c0 test %eax,%eax 9: 0f 85 0a 01 00 00 jne 0x119 f: 65 48 8b 2c 25 80 89 mov %gs:0x38980,%rbp 16: 03 00 18: 48 8d bd 5c 09 00 00 lea 0x95c(%rbp),%rdi 1f: 48 89 f8 mov %rdi,%rax 22: 48 c1 e8 03 shr $0x3,%rax 26: 0f b6 14 10 movzbl (%rax,%rdx,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 45 02 00 00 jne 0x284 3f: 8b .byte 0x8b