watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz-executor.7:800831]
Modules linked in:
irq event stamp: 50578
hardirqs last  enabled at (50577): [<ffffffff84000c82>] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635
hardirqs last disabled at (50578): [<ffffffff83e375fb>] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1094
softirqs last  enabled at (1244): [<ffffffff84001002>] asm_call_irq_on_stack+0x12/0x20
softirqs last disabled at (1227): [<ffffffff84001002>] asm_call_irq_on_stack+0x12/0x20
CPU: 1 PID: 800831 Comm: syz-executor.7 Not tainted 5.10.186 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:193
Code: ff ff b9 ff ff ff ff b8 08 00 00 00 4d 8b 17 49 8b 16 48 0f bd c8 48 63 c9 e9 5e ff ff ff 4c 01 d2 49 89 17 e9 cd fd ff ff 90 <48> 8b 34 24 65 48 8b 14 25 80 6f 02 00 65 8b 05 cc 09 c2 7e a9 00
RSP: 0018:ffff8880456efa50 EFLAGS: 00000246
RAX: 0000000000000002 RBX: ffff888019763480 RCX: ffffffff8227efb8
RDX: 0000000000000000 RSI: ffff888019763480 RDI: 0000000000000007
RBP: 0000000000000000 R08: 0000000000000000 R09: ffff888019763487
R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000
R13: ffff88803be4d000 R14: ffffed10032ec690 R15: 0000000000000000
FS:  00007efe618af700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000000 CR3: 000000004ead8000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 </IRQ>
 tty_throttled include/linux/tty.h:366 [inline]
 paste_selection+0x2e6/0x4e0 drivers/tty/vt/selection.c:400
 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+0x61/0xc6
RIP: 0033:0x7efe64339b19
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:00007efe618af188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007efe6444cf60 RCX: 00007efe64339b19
RDX: 0000000020000080 RSI: 000000000000541c RDI: 0000000000000004
RBP: 00007efe64393f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc83339e3f R14: 00007efe618af300 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), 2 bytes skipped:
   0:	b9 ff ff ff ff       	mov    $0xffffffff,%ecx
   5:	b8 08 00 00 00       	mov    $0x8,%eax
   a:	4d 8b 17             	mov    (%r15),%r10
   d:	49 8b 16             	mov    (%r14),%rdx
  10:	48 0f bd c8          	bsr    %rax,%rcx
  14:	48 63 c9             	movslq %ecx,%rcx
  17:	e9 5e ff ff ff       	jmpq   0xffffff7a
  1c:	4c 01 d2             	add    %r10,%rdx
  1f:	49 89 17             	mov    %rdx,(%r15)
  22:	e9 cd fd ff ff       	jmpq   0xfffffdf4
  27:	90                   	nop
* 28:	48 8b 34 24          	mov    (%rsp),%rsi <-- trapping instruction
  2c:	65 48 8b 14 25 80 6f 	mov    %gs:0x26f80,%rdx
  33:	02 00
  35:	65 8b 05 cc 09 c2 7e 	mov    %gs:0x7ec209cc(%rip),%eax        # 0x7ec20a08
  3c:	a9                   	.byte 0xa9