watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.3:11703]
Modules linked in:
irq event stamp: 50126
hardirqs last  enabled at (50125): [<ffffffff83e00c42>] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:644
hardirqs last disabled at (50126): [<ffffffff83c3744b>] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1095
softirqs last  enabled at (4202): [<ffffffff83e00f92>] asm_call_irq_on_stack+0x12/0x20
softirqs last disabled at (4153): [<ffffffff83e00f92>] asm_call_irq_on_stack+0x12/0x20
CPU: 0 PID: 11703 Comm: syz-executor.3 Not tainted 5.10.45 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:tty_ldisc_receive_buf+0x59/0x190 drivers/tty/tty_buffer.c:460
Code: 03 80 3c 02 00 0f 85 2c 01 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 33 49 8d be 80 00 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 <0f> 85 fd 00 00 00 48 8d 7b 08 49 8b 86 80 00 00 00 48 ba 00 00 00
RSP: 0018:ffff8880328d7a20 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: ffff88800df60ee0 RCX: 00000000000000d6
RDX: 1ffffffff0a0a624 RSI: ffffffff8220b1bf RDI: ffffffff85053120
RBP: ffff8880466bc000 R08: 0000000000000000 R09: ffff88804d9e64cf
R10: 0000000000000000 R11: 0000000000000001 R12: 00000000000000d6
R13: 0000000000000000 R14: ffffffff850530a0 R15: ffff88800df60ee0
FS:  00007f6f641c4700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000051a8b0 CR3: 0000000048040000 CR4: 0000000000350ef0
Call Trace:
 paste_selection+0x1e5/0x490 drivers/tty/vt/selection.c:408
 tioclinux+0x48d/0x5a0 drivers/tty/vt/vt.c:3165
 vt_ioctl+0x1e24/0x2ec0 drivers/tty/vt/vt_ioctl.c:860
 tty_ioctl+0x80a/0x17c0 drivers/tty/tty_io.c:2742
 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+0x196/0x210 fs/ioctl.c:739
 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x466609
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:00007f6f641c4188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 0000000000466609
RDX: 0000000020000040 RSI: 000000000000541c RDI: 0000000000000007
RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffcb3008dff R14: 00007f6f641c4300 R15: 0000000000022000
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:60 [inline]
NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:103 [inline]
NMI backtrace for cpu 1 skipped: idling at default_idle+0xe/0x10 arch/x86/kernel/process.c:688