linux

mirror of https://github.com/torvalds/linux.git synced 2026-06-08 22:52:35 +02:00

Linux kernel source tree

Go to file

Wang Yufen eb0e7173d9 netlabel: fix out-of-bounds memory accesses [ Upstream commit `f22881de73` ] In calipso_map_cat_ntoh(), in the for loop, if the return value of netlbl_bitmap_walk() is equal to (net_clen_bits - 1), when netlbl_bitmap_walk() is called next time, out-of-bounds memory accesses of bitmap[byte_offset] occurs. The bug was found during fuzzing. The following is the fuzzing report BUG: KASAN: slab-out-of-bounds in netlbl_bitmap_walk+0x3c/0xd0 Read of size 1 at addr ffffff8107bf6f70 by task err_OH/252 CPU: 7 PID: 252 Comm: err_OH Not tainted 5.17.0-rc7+ #17 Hardware name: linux,dummy-virt (DT) Call trace: dump_backtrace+0x21c/0x230 show_stack+0x1c/0x60 dump_stack_lvl+0x64/0x7c print_address_description.constprop.0+0x70/0x2d0 __kasan_report+0x158/0x16c kasan_report+0x74/0x120 __asan_load1+0x80/0xa0 netlbl_bitmap_walk+0x3c/0xd0 calipso_opt_getattr+0x1a8/0x230 calipso_sock_getattr+0x218/0x340 calipso_sock_getattr+0x44/0x60 netlbl_sock_getattr+0x44/0x80 selinux_netlbl_socket_setsockopt+0x138/0x170 selinux_socket_setsockopt+0x4c/0x60 security_socket_setsockopt+0x4c/0x90 __sys_setsockopt+0xbc/0x2b0 __arm64_sys_setsockopt+0x6c/0x84 invoke_syscall+0x64/0x190 el0_svc_common.constprop.0+0x88/0x200 do_el0_svc+0x88/0xa0 el0_svc+0x128/0x1b0 el0t_64_sync_handler+0x9c/0x120 el0t_64_sync+0x16c/0x170 Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Wang Yufen <wangyufen@huawei.com> Acked-by: Paul Moore <paul@paul-moore.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-04-13 20:59:10 +02:00
arch	MIPS: ingenic: correct unit node address	2022-04-13 20:59:09 +02:00
block	block: Fix the maximum minor value is blk_alloc_ext_minor()	2022-04-08 14:24:11 +02:00
certs	certs: Add support for using elliptic curve keys for signing modules	2021-08-23 19:55:42 +03:00
crypto	crypto: xts - Add softdep on ecb	2022-04-08 14:23:55 +02:00
Documentation	docs: sysctl/kernel: add missing bit to panic_print	2022-04-08 14:24:16 +02:00
drivers	mt76: fix monitor mode crash with sdio driver	2022-04-13 20:59:09 +02:00
fs	coredump: Use the vma snapshot in fill_files_note	2022-04-08 14:24:18 +02:00
include	can: isotp: set default value for N_As to 50 micro seconds	2022-04-13 20:59:08 +02:00
init	net: initialize init_net earlier	2022-04-13 20:59:03 +02:00
ipc	ipc/sem: do not sleep with a spin lock held	2022-02-08 18:34:03 +01:00
kernel	swiotlb: Support aligned swiotlb buffers	2022-04-08 14:24:17 +02:00
lib	lib/logic_iomem: correct fallback config references	2022-04-13 20:58:59 +02:00
LICENSES	LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes"	2021-07-15 06:31:24 -06:00
mm	kfence: limit currently covered allocations when pool nearly full	2022-04-13 20:59:00 +02:00
net	netlabel: fix out-of-bounds memory accesses	2022-04-13 20:59:10 +02:00
samples	samples/bpf, xdpsock: Fix race when running for fix duration of time	2022-04-08 14:23:40 +02:00
scripts	modpost: restore the warning message for missing symbol versions	2022-04-08 14:24:10 +02:00
security	Fix incorrect type in assignment of ipv6 port for audit	2022-04-08 14:23:55 +02:00
sound	ASoC: topology: Allow TLV control to be either read or write	2022-04-08 14:24:15 +02:00
tools	libbpf: Fix build issue with llvm-readelf	2022-04-13 20:59:03 +02:00
usr	usr/include/Makefile: add linux/nfc.h to the compile-test coverage	2022-02-01 17:27:15 +01:00
virt	KVM: Prevent module exit until all VMs are freed	2022-04-08 14:24:07 +02:00
.clang-format	clang-format: Update with the latest for_each macro list	2021-05-12 23:32:39 +02:00
.cocciconfig
.get_maintainer.ignore	Opt out of scripts/get_maintainer.pl	2019-05-16 10:53:40 -07:00
.gitattributes	.gitattributes: use 'dts' diff driver for dts files	2019-12-04 19:44:11 -08:00
.gitignore	.gitignore: ignore only top-level modules.builtin	2021-05-02 00:43:35 +09:00
.mailmap	mailmap: add Andrej Shadura	2021-10-18 20:22:03 -10:00
COPYING	COPYING: state that all contributions really are covered by this file	2020-02-10 13:32:20 -08:00
CREDITS	MAINTAINERS: Move Daniel Drake to credits	2021-09-21 08:34:58 +03:00
Kbuild	kbuild: rename hostprogs-y/always to hostprogs/always-y	2020-02-04 01:53:07 +09:00
Kconfig	kbuild: ensure full rebuild when the compiler is updated	2020-05-12 13:28:33 +09:00
MAINTAINERS	MAINTAINERS: adjust file entry for of_net.c after movement	2022-03-08 19:12:53 +01:00
Makefile	Linux 5.15.33	2022-04-08 14:24:18 +02:00
README	Drop all 00-INDEX files from Documentation/	2018-09-09 15:08:58 -06:00

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.