syzbot suspects this bug was fixed by commit:
commit ca4463bf8438b403596edd0ec961ca0d4fbe0220
Author: Eric Biggers <ebiggers@xxxxxxxxxx>
Date: Sun Mar 22 03:43:04 2020 +0000
vt: vt_ioctl: fix VT_DISALLOCATE freeing in-use virtual console
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11594fc8100000
start commit: 07c4b9e9 Merge tag 'scsi-fixes' of git://git.kernel.org/pu..
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=79f79de2a27d3e3d
dashboard link: https://syzkaller.appspot.com/bug?extid=9af6d43c1beabec8fd05
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=113886fae00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1263520ae00000
If the result looks correct, please mark the bug fixed by replying with:
#syz fix: vt: vt_ioctl: fix VT_DISALLOCATE freeing in-use virtual console
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
