INFO: task syz-executor.5:9613 can't die for more than 143 seconds.
syz-executor.5  R  running task    27576  9613   7369 0x00004006
Call Trace:
 context_switch kernel/sched/core.c:3455 [inline]
 __schedule+0x8e1/0x1eb0 kernel/sched/core.c:4180
 preempt_schedule_irq+0xb0/0x150 kernel/sched/core.c:4438
 idtentry_exit_cond_resched arch/x86/entry/common.c:621 [inline]
 idtentry_exit_cond_rcu+0xc0/0xf0 arch/x86/entry/common.c:668
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:596
RIP: 0010:check_kcov_mode kernel/kcov.c:163 [inline]
RIP: 0010:write_comp_data+0x13/0x80 kernel/kcov.c:218
Code: 48 8b 80 00 14 00 00 c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 49 89 f2 65 8b 05 76 19 8e 7e 65 48 8b 34 25 00 ff 01 00 <a9> 00 01 ff 00 74 0f f6 c4 01 74 59 8b 86 0c 14 00 00 85 c0 74 4f
RSP: 0018:ffffc90004fa74e8 EFLAGS: 00000206
RAX: 0000000080000000 RBX: 0000000000000000 RCX: ffffffff83c372b9
RDX: 0000000000000030 RSI: ffff888059e52440 RDI: 0000000000000005
RBP: ffff8880000a0100 R08: 0000000000001400 R09: 0000000000000040
R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000050
R13: ffff8880000a0000 R14: 0000000000000000 R15: 0000000000000030
 bitfill_aligned drivers/video/fbdev/core/cfbfillrect.c:63 [inline]
 bitfill_aligned+0x139/0x200 drivers/video/fbdev/core/cfbfillrect.c:35
 cfb_fillrect+0x40b/0x7b0 drivers/video/fbdev/core/cfbfillrect.c:327
 vga16fb_fillrect+0x683/0x193b drivers/video/fbdev/vga16fb.c:951
 bit_clear_margins+0x2d5/0x4a0 drivers/video/fbdev/core/bitblit.c:232
 fbcon_clear_margins+0x1d5/0x230 drivers/video/fbdev/core/fbcon.c:1381
 fbcon_switch+0xb6f/0x16c0 drivers/video/fbdev/core/fbcon.c:2363
 redraw_screen+0x2af/0x770 drivers/tty/vt/vt.c:1020
 fbcon_modechanged+0x575/0x710 drivers/video/fbdev/core/fbcon.c:3001
 fbcon_update_vcs+0x3a/0x50 drivers/video/fbdev/core/fbcon.c:3048
 fb_set_var+0xae8/0xd60 drivers/video/fbdev/core/fbmem.c:1056
 do_fb_ioctl+0x33f/0x6c0 drivers/video/fbdev/core/fbmem.c:1109
 fb_ioctl+0xdd/0x130 drivers/video/fbdev/core/fbmem.c:1185
 vfs_ioctl fs/ioctl.c:48 [inline]
 ksys_ioctl+0x11a/0x180 fs/ioctl.c:753
 __do_sys_ioctl fs/ioctl.c:762 [inline]
 __se_sys_ioctl fs/ioctl.c:760 [inline]
 __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:760
 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:359
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45cb19
Code: Bad RIP value.
RSP: 002b:00007fb1a2c91c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00000000004e5500 RCX: 000000000045cb19
RDX: 00000000200001c0 RSI: 0000000000004601 RDI: 0000000000000006
RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000002fc R14: 00000000004c587a R15: 00007fb1a2c926d4

Showing all locks held in the system:
1 lock held by khungtaskd/1156:
 #0: ffffffff89bc3180 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:5779
1 lock held by in:imklog/6492:
 #0: ffff8880a02c25f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:928
2 locks held by syz-executor.5/9613:

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