watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz-executor.4:91300]
Modules linked in:
irq event stamp: 40902
hardirqs last  enabled at (40901): [<ffffffff84000cc2>] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635
hardirqs last disabled at (40902): [<ffffffff83e457ab>] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1094
softirqs last  enabled at (518): [<ffffffff84001042>] asm_call_irq_on_stack+0x12/0x20
softirqs last disabled at (433): [<ffffffff84001042>] asm_call_irq_on_stack+0x12/0x20
CPU: 1 PID: 91300 Comm: syz-executor.4 Not tainted 5.10.205 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:__sanitizer_cov_trace_const_cmp8+0x4/0x20 kernel/kcov.c:290
Code: 00 00 00 00 00 90 48 8b 0c 24 89 f2 89 fe bf 05 00 00 00 e9 ae fe ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 8b 0c 24 <48> 89 f2 48 89 fe bf 07 00 00 00 e9 8c fe ff ff 66 66 2e 0f 1f 84
RSP: 0018:ffff888054ad7a50 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff888044980000 RCX: ffffffff82286a10
RDX: ffffed1008930001 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: ffff888044980007
R10: ffffed1008930000 R11: 0000000000000001 R12: dffffc0000000000
R13: ffff88805b32e000 R14: ffffed1008930000 R15: 0000000000000000
FS:  00007fe0b9fe9700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200003c0 CR3: 00000000529dc000 CR4: 0000000000350ee0
Call Trace:
 <IRQ>
 </IRQ>
 signal_pending include/linux/sched/signal.h:369 [inline]
 paste_selection+0x2a0/0x4e0 drivers/tty/vt/selection.c:396
 tioclinux+0x499/0x5b0 drivers/tty/vt/vt.c:3205
 vt_ioctl+0x1ee5/0x2c90 drivers/tty/vt/vt_ioctl.c:762
 tty_ioctl+0x862/0x18b0 drivers/tty/tty_io.c:2745
 vfs_ioctl fs/ioctl.c:48 [inline]
 __do_sys_ioctl fs/ioctl.c:753 [inline]
 __se_sys_ioctl fs/ioctl.c:739 [inline]
 __x64_sys_ioctl+0x19a/0x210 fs/ioctl.c:739
 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x62/0xc7
RIP: 0033:0x7fe0bca73b19
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:00007fe0b9fe9188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fe0bcb86f60 RCX: 00007fe0bca73b19
RDX: 0000000020000000 RSI: 000000000000541c RDI: 0000000000000003
RBP: 00007fe0bcacdf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffda2bacaff R14: 00007fe0b9fe9300 R15: 0000000000022000
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:60 [inline]
NMI backtrace for cpu 0 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:103 [inline]
NMI backtrace for cpu 0 skipped: idling at default_idle+0xe/0x20 arch/x86/kernel/process.c:706
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	00 00                	add    %al,(%rax)
   4:	00 90 48 8b 0c 24    	add    %dl,0x240c8b48(%rax)
   a:	89 f2                	mov    %esi,%edx
   c:	89 fe                	mov    %edi,%esi
   e:	bf 05 00 00 00       	mov    $0x5,%edi
  13:	e9 ae fe ff ff       	jmpq   0xfffffec6
  18:	66 66 2e 0f 1f 84 00 	data16 nopw %cs:0x0(%rax,%rax,1)
  1f:	00 00 00 00
  23:	0f 1f 00             	nopl   (%rax)
  26:	48 8b 0c 24          	mov    (%rsp),%rcx
* 2a:	48 89 f2             	mov    %rsi,%rdx <-- trapping instruction
  2d:	48 89 fe             	mov    %rdi,%rsi
  30:	bf 07 00 00 00       	mov    $0x7,%edi
  35:	e9 8c fe ff ff       	jmpq   0xfffffec6
  3a:	66                   	data16
  3b:	66                   	data16
  3c:	2e                   	cs
  3d:	0f                   	.byte 0xf
  3e:	1f                   	(bad)
  3f:	84                   	.byte 0x84