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Alexander Potapenko 4d3df2b61d fs/binfmt_elf.c: allocate initialized memory in fill_thread_core_info() 
[ Upstream commit 1d605416fb7175e1adf094251466caa52093b413 ]

KMSAN reported uninitialized data being written to disk when dumping
core.  As a result, several kilobytes of kmalloc memory may be written
to the core file and then read by a non-privileged user.

Reported-by: sam <sunhaoyl@outlook.com>
Signed-off-by: Alexander Potapenko <glider@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/20200419100848.63472-1-glider@google.com
Link: https://github.com/google/kmsan/issues/76
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2021-03-16 16:28:37 +08:00
Documentation USB: hub: Revert commit bd0e6c9614b9 ("usb: hub: try old enumeration scheme first for high speed devices") 2021-03-16 16:26:56 +08:00
LICENSES Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
arch ARM: dts: bcm: HR2: Fix PPI interrupt types 2021-03-16 16:28:34 +08:00
block iocost: protect iocg->abs_vdebt with iocg->waitq.lock 2021-03-16 16:27:41 +08:00
certs Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
crypto gcc-10: avoid shadowing standard library 'free()' in crypto 2021-03-16 16:27:59 +08:00
drivers IB/ipoib: Fix double free of skb in case of multicast traffic in CM mode 2021-03-16 16:28:36 +08:00
fs fs/binfmt_elf.c: allocate initialized memory in fill_thread_core_info() 2021-03-16 16:28:37 +08:00
include mm: remove VM_BUG_ON(PageSlab()) from page_mapcount() 2021-03-16 16:28:36 +08:00
init x86: Fix early boot crash on gcc-10, third try 2021-03-16 16:28:02 +08:00
ipc ipc/util.c: sysvipc_find_ipc() incorrectly updates position index 2021-03-16 16:27:51 +08:00
kernel sched/fair: Fix enqueue_task_fair() warning some more 2021-03-16 16:28:22 +08:00
lib vsprintf: don't obfuscate NULL and error pointers 2021-03-16 16:28:16 +08:00
mm mm,thp: stop leaking unreleased file pages 2021-03-16 16:28:36 +08:00
net libceph: ignore pool overlay and cache logic on redirects 2021-03-16 16:28:36 +08:00
package config/arm64: OPEN CONFIG_PSI and phytium configs 2021-03-16 11:02:59 +08:00
samples samples: bpf: Fix build error 2021-03-16 16:28:31 +08:00
scripts kbuild: Remove debug info from kallsyms linking 2021-03-16 16:28:17 +08:00
security exec: Always set cap_ambient in cap_bprm_set_creds 2021-03-16 16:28:35 +08:00
sound ALSA: hda/realtek - Add new codec supported for ALC287 2021-03-16 16:28:35 +08:00
tools KVM: selftests: Fix build for evmcs.h 2021-03-16 16:28:12 +08:00
usr Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
virt KVM: arm: vgic: Synchronize the whole guest on GIC{D,R}_I{S,C}ACTIVER read 2021-03-16 16:27:45 +08:00
.clang-format Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
.cocciconfig Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
.get_maintainer.ignore Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
.gitattributes Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
.gitignore Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
COPYING Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
CREDITS Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
Kbuild Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
Kconfig Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
MAINTAINERS Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
Makefile kbuild: avoid concurrency issue in parallel building dtbs and dtbs_check 2021-03-16 16:28:08 +08:00
README Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
README.md Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
backport_remove_lists.txt Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
tools_key.pub Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00

README.md

Tencent Linux Kernel 4.0