Pavel Skripkin 211b4d42b7 tty: fix memory leak in vc_deallocate ...

syzbot reported memory leak in tty/vt.
The problem was in VT_DISALLOCATE ioctl cmd.
After allocating unimap with PIO_UNIMAP it wasn't
freed via VT_DISALLOCATE, but vc_cons[currcons].d was
zeroed.

Reported-by: syzbot+bcc922b19ccc64240b42@syzkaller.appspotmail.com
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210327214443.21548-1-paskripkin@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2021-03-28 14:16:47 +02:00

..

.gitignore

tty: vt: move conmakehash to drivers/tty/vt/ from scripts/

2019-12-17 14:42:46 +01:00

conmakehash.c

tty: vt: move conmakehash to drivers/tty/vt/ from scripts/

2019-12-17 14:42:46 +01:00

consolemap.c

vt/consolemap: do font sum unsigned

2021-01-07 16:17:31 +01:00

cp437.uni

tty: fix up a few remaining files without SPDX identifiers

2019-04-04 18:48:43 +02:00

defkeymap.c_shipped

vt: keyboard, defkeymap.c_shipped, approach the unicode table

2021-01-07 16:17:31 +01:00

defkeymap.map

tty: fix up a few remaining files without SPDX identifiers

2019-04-04 18:48:43 +02:00

keyboard.c

vt: keyboard, Fix typo in the doc for vt_get_shift_state()

2021-03-23 10:39:27 +01:00

Makefile

kbuild: rename hostprogs-y/always to hostprogs/always-y

2020-02-04 01:53:07 +09:00

selection.c

vc: propagate "viewed as bool" from screenpos up

2020-08-18 13:45:20 +02:00

vc_screen.c

Revert "vc_screen: extract vcs_read_buf_header"

2020-08-24 19:51:56 +02:00

vt_ioctl.c

vt_ioctl: Remove in_interrupt() check

2021-02-09 11:45:04 +01:00

vt.c

tty: fix memory leak in vc_deallocate

2021-03-28 14:16:47 +02:00