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Filename Latest commit message Latest commit date
Martin Schiller d8a11e0f4e net/x25: fix nonblocking connect
commit e21dba7a4df4d93da237da65a096084b4f2e87b4 upstream.

This patch fixes 2 issues in x25_connect():

1. It makes absolutely no sense to reset the neighbour and the
connection state after a (successful) nonblocking call of x25_connect.
This prevents any connection from being established, since the response
(call accept) cannot be processed.

2. Any further calls to x25_connect() while a call is pending should
simply return, instead of creating new Call Request (on different
logical channels).

This patch should also fix the "KASAN: null-ptr-deref Write in
x25_connect" and "BUG: unable to handle kernel NULL pointer dereference
in x25_connect" bugs reported by syzbot.

Signed-off-by: Martin Schiller <ms@dev.tdt.de>
Reported-by: syzbot+429c200ffc8772bfe070@syzkaller.appspotmail.com
Reported-by: syzbot+eec0c87f31a7c3b66f7b@syzkaller.appspotmail.com
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-29 16:45:33 +01:00
arch powerpc/xive: Discard ESB load value when interrupt is invalid 2020-01-29 16:45:26 +01:00
block block: fix memleak of bio integrity data 2020-01-26 10:01:09 +01:00
certs
crypto crypto: algif_skcipher - Use chunksize instead of blocksize 2020-01-17 19:48:46 +01:00
Documentation hwrng: omap3-rom - Fix missing clock by probing with device tree 2020-01-26 10:01:03 +01:00
drivers media: v4l2-ioctl.c: zero reserved fields for S/TRY_FMT 2020-01-29 16:45:33 +01:00
fs readdir: be more conservative with directory entry names 2020-01-29 16:45:31 +01:00
include netfilter: nf_tables: autoload modules from the abort path 2020-01-29 16:45:33 +01:00
init mm, debug_pagealloc: don't rely on static keys too early 2020-01-23 08:22:40 +01:00
ipc
kernel tracing: Fix histogram code when expression has same var as value 2020-01-29 16:45:26 +01:00
lib lib: Reduce user_access_begin() boundaries in strncpy_from_user() and strnlen_user() 2020-01-29 16:45:29 +01:00
LICENSES
mm mm/page-writeback.c: avoid potential division by zero in wb_min_max_ratio() 2020-01-23 08:22:41 +01:00
net net/x25: fix nonblocking connect 2020-01-29 16:45:33 +01:00
samples samples/bpf: Fix broken xdp_rxq_info due to map order assumptions 2020-01-26 10:00:58 +01:00
scripts ARM: 8950/1: ftrace/recordmcount: filter relocation types 2020-01-29 16:45:27 +01:00
security tomoyo: Suppress RCU warning at list_for_each_entry_rcu(). 2020-01-17 19:49:05 +01:00
sound ALSA: usb-audio: fix sync-ep altsetting sanity check 2020-01-23 08:22:31 +01:00
tools kselftests: cgroup: Avoid the reuse of fd after it is deallocated 2020-01-26 10:01:07 +01:00
usr gen_initramfs_list.sh: fix 'bad variable name' error 2020-01-09 10:20:00 +01:00
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS MAINTAINERS: Append missed file to the database 2020-01-17 19:48:28 +01:00
Makefile Linux 5.4.15 2020-01-26 10:01:09 +01:00
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.