diff options
| author | Matthias Reichl <hias@horus.com> | 2020-11-05 13:34:32 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-11-06 17:24:49 +0100 |
| commit | 4466d6d2f80c1193e0845d110277c56da77a6418 (patch) | |
| tree | f5814b105f5b9cf07ae532571cf7f735c5072796 /drivers/ata/pata_sch.c | |
| parent | 0c5fc92622ed5531ff324b20f014e9e3092f0187 (diff) | |
tty: fix crash in release_tty if tty->port is not set
Commit 2ae0b31e0face ("tty: don't crash in tty_init_dev when missing
tty_port") didn't fully prevent the crash as the cleanup path in
tty_init_dev() calls release_tty() which dereferences tty->port
without checking it for non-null.
Add tty->port checks to release_tty to avoid the kernel crash.
Fixes: 2ae0b31e0face ("tty: don't crash in tty_init_dev when missing tty_port")
Signed-off-by: Matthias Reichl <hias@horus.com>
Link: https://lore.kernel.org/r/20201105123432.4448-1-hias@horus.com
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/ata/pata_sch.c')
0 files changed, 0 insertions, 0 deletions