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Document ldisc_autoload better #63

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merged 1 commit into from Feb 15, 2020
Merged

Document ldisc_autoload better #63

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7 changes: 5 additions & 2 deletions etc/sysctl.d/30_security-misc.conf
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Expand Up @@ -126,7 +126,10 @@ net.ipv4.tcp_timestamps=0
## https://forums.whonix.org/t/sysrq-magic-sysrq-key/8079/
kernel.sysrq=132

## Restrict loading line disciplines to CAP_SYS_MODULE to prevent
## Restrict loading TTY line disciplines to CAP_SYS_MODULE to prevent
## unprivileged attackers from loading vulnerable line disciplines
## with the TIOCSETD ioctl to exploit them.
## with the TIOCSETD ioctl which has been used in exploits before
## such as https://a13xp0p0v.github.io/2017/03/24/CVE-2017-2636.html
##
## https://lkml.org/lkml/2019/4/15/890
dev.tty.ldisc_autoload=0