watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [syz-executor.0:3986]
Modules linked in:
irq event stamp: 7082483
hardirqs last  enabled at (7082482): [<ffffffff844f6731>] __do_softirq+0x171/0x7d4
hardirqs last disabled at (7082483): [<ffffffff844d034f>] sysvec_apic_timer_interrupt+0xf/0x90
softirqs last  enabled at (7082478): [<ffffffff8118d9e3>] irq_exit_rcu+0x93/0xc0
softirqs last disabled at (7082481): [<ffffffff8118d9e3>] irq_exit_rcu+0x93/0xc0
CPU: 0 PID: 3986 Comm: syz-executor.0 Not tainted 6.4.0-rc2-next-20230519 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:__do_softirq+0x177/0x7d4
Code: f0 83 83 d4 09 00 00 01 c7 44 24 20 0a 00 00 00 48 89 44 24 18 65 66 c7 05 bc 25 b4 7b 00 00 e8 bf c0 03 fd fb bb ff ff ff ff <48> c7 c5 c0 a0 40 85 41 0f bc de 83 c3 01 0f 85 9e 00 00 00 e9 48
RSP: 0018:ffff88806ce09f80 EFLAGS: 00000202
RAX: 00000000006c11f2 RBX: 00000000ffffffff RCX: 1ffffffff0ba6671
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff844f6731
RBP: ffff88804384f668 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff85d35c57 R11: ffff88806ce09ff8 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000200 R15: 0000000000000000
FS:  00007f31bcb6c700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007feee1c7c546 CR3: 000000003fd0c000 CR4: 0000000000350ef0
Call Trace:
 <IRQ>
 irq_exit_rcu+0x93/0xc0
 sysvec_irq_work+0x6e/0x90
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x1a/0x20
RIP: 0010:finish_task_switch.isra.0+0x20d/0x830
Code: 89 ff 48 c7 03 00 00 00 00 e8 2f 33 2c 03 4d 85 e4 75 ba 4c 89 ff e8 02 0e 2c 03 e8 2d ed 2f 00 fb 65 48 8b 1c 25 c0 8c 03 00 <48> 8d bb 80 14 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1
RSP: 0018:ffff88804384f710 EFLAGS: 00000206
RAX: 0000000000004327 RBX: ffff888019381b40 RCX: 1ffffffff0ba6671
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81233ac3
RBP: ffff88804384f750 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff85d35c57 R11: 0000000000000001 R12: ffff88806ce396d8
R13: ffff8880095051c0 R14: ffff8880420c5668 R15: ffff88806ce396c0
 __schedule+0x9b1/0x2b10
 __cond_resched+0x46/0x70
 kmem_cache_alloc+0x32c/0x390
 __create_object+0x3c/0xc90
 __kmem_cache_alloc_node+0x1f8/0x310
 __kmalloc+0x4a/0x160
 copy_net_ns+0xe2/0x770
 create_new_namespaces+0x3f6/0xb30
 copy_namespaces+0x414/0x500
 copy_process+0x2b78/0x73b0
 kernel_clone+0xeb/0x7d0
 __do_sys_clone3+0x1d5/0x250
 do_syscall_64+0x3f/0x90
 entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7f31bf5f6b19
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:00007f31bcb6c188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3
RAX: ffffffffffffffda RBX: 00007f31bf709f60 RCX: 00007f31bf5f6b19
RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00
RBP: 00007f31bf650f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffebf8bf90f R14: 00007f31bcb6c300 R15: 0000000000022000
 </TASK>
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:	f0 83 83 d4 09 00 00 	lock addl $0x1,0x9d4(%rbx)
   7:	01
   8:	c7 44 24 20 0a 00 00 	movl   $0xa,0x20(%rsp)
   f:	00
  10:	48 89 44 24 18       	mov    %rax,0x18(%rsp)
  15:	65 66 c7 05 bc 25 b4 	movw   $0x0,%gs:0x7bb425bc(%rip)        # 0x7bb425db
  1c:	7b 00 00
  1f:	e8 bf c0 03 fd       	callq  0xfd03c0e3
  24:	fb                   	sti
  25:	bb ff ff ff ff       	mov    $0xffffffff,%ebx
* 2a:	48 c7 c5 c0 a0 40 85 	mov    $0xffffffff8540a0c0,%rbp <-- trapping instruction
  31:	41 0f bc de          	bsf    %r14d,%ebx
  35:	83 c3 01             	add    $0x1,%ebx
  38:	0f 85 9e 00 00 00    	jne    0xdc
  3e:	e9                   	.byte 0xe9
  3f:	48                   	rex.W