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document some improvements

System calls operating on file descriptors obtain a reference to

relevant struct file which due to a programming error was not always put

back, which in turn could be used to overflow the counter of affected

struct file.

  1. … 1 more file in changeset.
The kernel driver for /dev/midistat implements a handler for read(2).

This handler is not thread-safe, and a multi-threaded program can

exploit races in the handler to cause it to copy out kernel memory

outside the boundaries of midistat's data buffer.

  1. … 1 more file in changeset.
document releases vs patches

document patch

document some patches

document mqueuefs(5) issue

Due to insufficient initialization of memory copied to userland in the

components listed above small amounts of kernel memory may be disclosed

to userland processes.

  1. … 1 more file in changeset.
The code which handles a close(2) of a descriptor created by

posix_openpt(2) fails to undo the configuration which causes SIGIO to be

raised. This bug can lead to a write-after-free of kernel memory.

  1. … 1 more file in changeset.
Fix some security issues in telnet client.

  1. … 3 more files in changeset.
document mport changes.

document abs path issue

Add portsnap(8)

  1. … 18 more files in changeset.