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Liviu Dudau be22b6df6d mm/vmalloc.c: don't dereference possible NULL pointer in __vunmap() 
commit 6ade20327d upstream.

find_vmap_area() can return a NULL pointer and we're going to
dereference it without checking it first.  Use the existing
find_vm_area() function which does exactly what we want and checks for
the NULL pointer.

Link: http://lkml.kernel.org/r/20181228171009.22269-1-liviu@dudau.co.uk
Fixes: f3c01d2f3a ("mm: vmalloc: avoid racy handling of debugobjects in vunmap")
Signed-off-by: Liviu Dudau <liviu@dudau.co.uk>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Chintan Pandya <cpandya@codeaurora.org>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-06-03 08:18:11 +02:00
arch copy_xstate_to_kernel(): don't leave parts of destination uninitialized 2020-06-03 08:18:05 +02:00
block block, bfq: fix use-after-free in bfq_idle_slice_timer_body 2020-04-24 08:00:30 +02:00
certs Replace magic for trusting the secondary keyring with #define 2018-09-09 19:55:54 +02:00
crypto gcc-10: avoid shadowing standard library 'free()' in crypto 2020-05-20 08:17:11 +02:00
Documentation ALSA: doc: Document PC Beep Hidden Register on Realtek ALC256 2020-04-24 08:00:35 +02:00
drivers bonding: Fix reference count leak in bond_sysfs_slave_add. 2020-06-03 08:18:10 +02:00
firmware Fix built-in early-load Intel microcode alignment 2020-01-23 08:20:30 +01:00
fs fs/binfmt_elf.c: allocate initialized memory in fill_thread_core_info() 2020-06-03 08:18:03 +02:00
include netfilter: nf_conntrack_pptp: fix compilation warning with W=1 build 2020-06-03 08:18:10 +02:00
init x86: Fix early boot crash on gcc-10, third try 2020-05-20 08:17:15 +02:00
ipc ipc/util.c: sysvipc_find_ipc() incorrectly updates position index 2020-05-20 08:17:07 +02:00
kernel padata: purge get_cpu and reorder_via_wq from padata_do_serial 2020-05-27 16:43:05 +02:00
lib ubsan: build ubsan.c more conservatively 2020-05-27 16:43:08 +02:00
mm mm/vmalloc.c: don't dereference possible NULL pointer in __vunmap() 2020-06-03 08:18:11 +02:00
net netfilter: nf_conntrack_pptp: fix compilation warning with W=1 build 2020-06-03 08:18:10 +02:00
samples samples: bpf: Fix build error 2020-06-03 08:17:55 +02:00
scripts gcc-common.h: Update for GCC 10 2020-05-27 16:42:53 +02:00
security exec: Always set cap_ambient in cap_bprm_set_creds 2020-06-03 08:18:01 +02:00
sound ALSA: hda/realtek - Add new codec supported for ALC287 2020-06-03 08:18:02 +02:00
tools objtool: Fix stack offset tracking for indirect CFAs 2020-05-20 08:17:01 +02:00
usr initramfs: restore default compression behavior 2020-04-13 10:34:19 +02:00
virt KVM: arm: vgic: Fix limit condition when writing to GICD_I[CS]ACTIVER 2020-05-20 08:16:58 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore kbuild: rpm-pkg: keep spec file until make mrproper 2018-02-13 10:19:46 +01:00
.mailmap .mailmap: Add Maciej W. Rozycki's Imagination e-mail address 2017-11-10 12:16:15 -08:00
COPYING
CREDITS MAINTAINERS: update TPM driver infrastructure changes 2017-11-09 17:58:40 -08:00
Kbuild
Kconfig
MAINTAINERS MAINTAINERS: Update drm/i915 bug filing URL 2020-02-28 16:36:12 +01:00
Makefile Linux 4.14.182 2020-05-27 16:43:13 +02:00
README

README 

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

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

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.