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Filename Latest commit message Latest commit date
Jiri Slaby 9de9003b25 tty: rocket, avoid OOB access
commit 7127d24372bf23675a36edc64d092dc7fd92ebe8 upstream.

init_r_port can access pc104 array out of bounds. pc104 is a 2D array
defined to have 4 members. Each member has 8 submembers.
* we can have more than 4 (PCI) boards, i.e. [board] can be OOB
* line is not modulo-ed by anything, so the first line on the second
  board can be 4, on the 3rd 12 or alike (depending on previously
  registered boards). It's zero only on the first line of the first
  board. So even [line] can be OOB, quite soon (with the 2nd registered
  board already).

This code is broken for ages, so just avoid the OOB accesses and don't
try to fix it as we would need to find out the correct line number. Use
the default: RS232, if we are out.

Generally, if anyone needs to set the interface types, a module parameter
is past the last thing that should be used for this purpose. The
parameters' description says it's for ISA cards anyway.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: stable <stable@vger.kernel.org>
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Link: https://lore.kernel.org/r/20200417105959.15201-2-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-29 16:33:17 +02:00
arch KVM: VMX: Enable machine check support for 32bit targets 2020-04-29 16:33:17 +02:00
block
certs
crypto
Documentation
drivers tty: rocket, avoid OOB access 2020-04-29 16:33:17 +02:00
fs coredump: fix null pointer dereference on coredump 2020-04-29 16:33:14 +02:00
include KVM: Check validity of resolved slot when searching memslots 2020-04-29 16:33:16 +02:00
init
ipc
kernel
lib
LICENSES
mm mm/ksm: fix NULL pointer dereference when KSM zero page is enabled 2020-04-29 16:33:15 +02:00
net
samples vmalloc: fix remap_vmalloc_range() bounds checks 2020-04-29 16:33:14 +02:00
scripts
security
sound ALSA: usb-audio: Filter out unsupported sample rates on Focusrite devices 2020-04-29 16:33:16 +02:00
tools tools/vm: fix cross-compile build 2020-04-29 16:33:15 +02:00
usr
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README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.