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Filename Latest commit message Latest commit date
Pavel Begunkov f246eedbaf io_uring: fix dead-hung for non-iter fixed rw
commit 311ae9e159d81a1ec1cf645daf40b39ae5a0bd84 upstream.

Read/write requests to devices without implemented read/write_iter
using fixed buffers can cause general protection fault, which totally
hangs a machine.

io_import_fixed() initialises iov_iter with bvec, but loop_rw_iter()
accesses it as iovec, dereferencing random address.

kmap() page by page in this case

Cc: stable@vger.kernel.org
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-12-13 08:42:27 +01:00
arch sparc64: implement ioremap_uc 2019-12-13 08:42:17 +01:00
block iocost: check active_list of all the ancestors in iocg_activate() 2019-11-14 13:56:54 -07:00
certs
crypto
Documentation x86/speculation: Fix incorrect MDS/TAA mitigation status 2019-11-29 10:09:46 +01:00
drivers mwifiex: Re-work support for SDIO HW reset 2019-12-13 08:42:26 +01:00
fs io_uring: fix dead-hung for non-iter fixed rw 2019-12-13 08:42:27 +01:00
include net/tls: use sg_next() to walk sg entries 2019-12-04 22:31:02 +01:00
init
ipc
kernel time: Zero the upper 32-bits in __kernel_timespec on 32-bit 2019-12-13 08:42:18 +01:00
lib lib/xz: fix XZ_DYNALLOC to avoid useless memory reallocations 2019-11-15 18:34:00 -08:00
LICENSES
mm mm/ksm.c: don't WARN if page is still mapped in remove_stable_node() 2019-11-22 09:11:18 -08:00
net tipc: fix link name length check 2019-12-04 22:31:03 +01:00
samples
scripts arm64 fix for -rc8 / final 2019-11-15 09:14:23 -08:00
security
sound ALSA: hda - Disable audio component for legacy Nvidia HDMI codecs 2019-11-29 10:10:19 +01:00
tools perf scripts python: exported-sql-viewer.py: Fix use of TRUE with SQLite 2019-12-13 08:42:16 +01:00
usr
virt KVM: Add a comment describing the /dev/kvm no_compat handling 2019-11-15 10:14:04 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap ARM: SoC fixes 2019-11-10 13:41:59 -08:00
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-22 14:28:14 -08:00
Makefile Linux 5.4.2 2019-12-04 22:31:09 +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.