stack segment: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 19129 Comm: kworker/0:6 Not tainted 5.7.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events console_callback RIP: 0010:add_softcursor drivers/tty/vt/vt.c:865 [inline] RIP: 0010:set_cursor drivers/tty/vt/vt.c:907 [inline] RIP: 0010:redraw_screen+0xe44/0x16f0 drivers/tty/vt/vt.c:1025 Code: 00 48 89 d8 48 c1 e8 03 80 3c 28 00 74 08 48 89 df e8 90 9d b6 fd 4c 8b 2b 4c 89 ed 48 c1 ed 03 48 bb 00 00 00 00 00 fc ff df <8a> 44 1d 00 84 c0 0f 85 90 07 00 00 45 0f b7 75 00 4c 89 64 24 18 RSP: 0018:ffffc90017b4fbc0 EFLAGS: 00010202 RAX: 1ffff1101281807e RBX: dffffc0000000000 RCX: ffff88803aff0200 RDX: 0000000000000000 RSI: 00000000000000c0 RDI: ffff8880940c0000 RBP: 000000001fffffea R08: ffffffff83faa1b2 R09: ffffed101476342c R10: ffffed101476342c R11: 0000000000000000 R12: ffff8880940c0000 R13: 00000000ffffff50 R14: 1ffff1101281809a R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000740194 CR3: 000000004229b000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: complete_change_console+0xb1/0x720 drivers/tty/vt/vt_ioctl.c:1274 console_callback+0x106/0x330 drivers/tty/vt/vt.c:2844 process_one_work+0x76e/0xfd0 kernel/workqueue.c:2268 worker_thread+0xa7f/0x1450 kernel/workqueue.c:2414 kthread+0x353/0x380 kernel/kthread.c:268 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Modules linked in: ---[ end trace ff8f3e3e58b128c6 ]--- RIP: 0010:add_softcursor drivers/tty/vt/vt.c:865 [inline] RIP: 0010:set_cursor drivers/tty/vt/vt.c:907 [inline] RIP: 0010:redraw_screen+0xe44/0x16f0 drivers/tty/vt/vt.c:1025 Code: 00 48 89 d8 48 c1 e8 03 80 3c 28 00 74 08 48 89 df e8 90 9d b6 fd 4c 8b 2b 4c 89 ed 48 c1 ed 03 48 bb 00 00 00 00 00 fc ff df <8a> 44 1d 00 84 c0 0f 85 90 07 00 00 45 0f b7 75 00 4c 89 64 24 18 RSP: 0018:ffffc90017b4fbc0 EFLAGS: 00010202 RAX: 1ffff1101281807e RBX: dffffc0000000000 RCX: ffff88803aff0200 RDX: 0000000000000000 RSI: 00000000000000c0 RDI: ffff8880940c0000 RBP: 000000001fffffea R08: ffffffff83faa1b2 R09: ffffed101476342c R10: ffffed101476342c R11: 0000000000000000 R12: ffff8880940c0000 R13: 00000000ffffff50 R14: 1ffff1101281809a R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004e8e90 CR3: 000000004229b000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400