Multiple race conditions in the terminal layer in Linux 2.4.x, and
2.6.x before 2.6.9, allow (1) local users to obtain portions of kernel
data via a TIOCSETD ioctl call to a terminal interface that is being
accessed by another thread, or (2) remote attackers to cause a denial
of service (panic) by switching from console to PPP line discipline,
then quickly sending data that is received during the switch.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
BUGTRAQ:20041020 CAN-2004-0814: Linux terminal layer races
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