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Filename Latest commit message Latest commit date
Jann Horn 0a0b987344 compat: fix 4-byte infoleak via uninitialized struct field 
Commit 3a4d44b616 ("ntp: Move adjtimex related compat syscalls to
native counterparts") removed the memset() in compat_get_timex().  Since
then, the compat adjtimex syscall can invoke do_adjtimex() with an
uninitialized ->tai.

If do_adjtimex() doesn't write to ->tai (e.g.  because the arguments are
invalid), compat_put_timex() then copies the uninitialized ->tai field
to userspace.

Fix it by adding the memset() back.

Fixes: 3a4d44b616 ("ntp: Move adjtimex related compat syscalls to native counterparts")
Signed-off-by: Jann Horn <jannh@google.com>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-05-10 17:51:58 -07:00
arch KVM fixes for v4.17-rc4 2018-05-06 05:46:29 -10:00
block
certs
crypto
Documentation - A stable fix for DM integrity to use kvfree. 2018-05-10 11:42:01 -07:00
drivers - A stable fix for DM integrity to use kvfree. 2018-05-10 11:42:01 -07:00
firmware
fs First pull request for 4.17-rc 2018-05-04 20:51:10 -10:00
include KVM fixes for v4.17-rc4 2018-05-06 05:46:29 -10:00
init Fix typo in comment. 2018-05-07 05:41:46 -10:00
ipc
kernel compat: fix 4-byte infoleak via uninitialized struct field 2018-05-10 17:51:58 -07:00
lib
LICENSES
mm for-linus-20180504 2018-05-04 20:41:44 -10:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-05-03 18:57:03 -10:00
samples
scripts DeviceTree fixes for 4.17: 2018-05-07 05:33:29 -10:00
security
sound
tools ACPI fix for 4.17-rc4 2018-05-04 05:43:33 -10:00
usr
virt KVM/arm fixes for 4.17, take #2 2018-05-05 23:05:31 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
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MAINTAINERS Kbuild fixes for v4.17 2018-05-04 21:15:25 -10:00
Makefile Linux 4.17-rc4 2018-05-06 16:57:38 -10:00
README

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.
See Documentation/00-INDEX for a list of what is contained in each file.

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.