[PATCH v2 0/2] fix out-of-bounds access when specifying invalid console

Sven Schnelle
2022-12-09T11:28:04Z

Hi,

these two patches fix a crash in the tty driver when a user specifies an
invalid console like 'console=tty3000'. The first patch adds a check to
tty_driver_lookup_tty(), the second one prevents that such a console gets
registered in the vt driver.

Changes in v2:
- trim commit message in first patch
- add second patch as suggested by Jiri Slaby

Sven Schnelle (2):
tty: fix out-of-bounds access in tty_driver_lookup_tty()
tty/vt: prevent registration of console with invalid number

drivers/tty/tty_io.c | 8 +++++---
drivers/tty/vt/vt.c | 6 ++++++
2 files changed, 11 insertions(+), 3 deletions(-)

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2.34.1