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| author | Peter Hurley <peter@hurleysoftware.com> | 2015-01-19 13:05:03 -0500 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2015-05-09 23:16:14 +0100 |
| commit | a712f0118bd7356412e86940b30aaf7de0fe3f89 (patch) | |
| tree | 6140f49e14211cd08baae1850ecd6ed413503da8 /drivers/media/dvb/dvb-usb/lmedm04.c | |
| parent | e3fc681f02069d4d74c98d933843a511ec12cf4e (diff) | |
| download | kernel_samsung_smdk4412-a712f0118bd7356412e86940b30aaf7de0fe3f89.zip kernel_samsung_smdk4412-a712f0118bd7356412e86940b30aaf7de0fe3f89.tar.gz kernel_samsung_smdk4412-a712f0118bd7356412e86940b30aaf7de0fe3f89.tar.bz2 | |
tty: Prevent untrappable signals from malicious program
commit 37480a05685ed5b8e1b9bf5e5c53b5810258b149 upstream.
Commit 26df6d13406d1a5 ("tty: Add EXTPROC support for LINEMODE")
allows a process which has opened a pty master to send _any_ signal
to the process group of the pty slave. Although potentially
exploitable by a malicious program running a setuid program on
a pty slave, it's unknown if this exploit currently exists.
Limit to signals actually used.
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Howard Chu <hyc@symas.com>
Cc: One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>
Cc: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'drivers/media/dvb/dvb-usb/lmedm04.c')
0 files changed, 0 insertions, 0 deletions