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Gavrilov Ilia b42e564358 l2tp: fix incorrect parameter validation in the pppol2tp_getsockopt() function 
[ Upstream commit 955e9876ba4ee26eeaab1b13517f5b2c88e73d55 ]

The 'len' variable can't be negative when assigned the result of
'min_t' because all 'min_t' parameters are cast to unsigned int,
and then the minimum one is chosen.

To fix the logic, check 'len' as read from 'optlen',
where the types of relevant variables are (signed) int.

Fixes: 3557baabf2 ("[L2TP]: PPP over L2TP driver core")
Reviewed-by: Tom Parkin <tparkin@katalix.com>
Signed-off-by: Gavrilov Ilia <Ilia.Gavrilov@infotecs.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-03-26 18:21:53 -04:00
arch x86, relocs: Ignore relocations in .notes section 2024-03-26 18:21:51 -04:00
block block: add a new set_read_only method 2024-03-26 18:21:48 -04:00
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2022-06-22 14:13:17 +02:00
crypto crypto: api - Disallow identical driver names 2024-02-23 08:41:52 +01:00
Documentation net: sysfs: Fix /sys/class/net/<iface> path for statistics 2024-02-23 08:42:23 +01:00
drivers OPP: debugfs: Fix warning around icc_get_name() 2024-03-26 18:21:53 -04:00
fs fs/select: rework stack allocation hack for clang 2024-03-26 18:21:47 -04:00
include bpf: net: Change do_ip_getsockopt() to take the sockptr_t argument 2024-03-26 18:21:53 -04:00
init rootfs: Fix support for rootfstype= when root= is given 2024-01-25 14:37:52 -08:00
io_uring io_uring: drop any code related to SCM_RIGHTS 2024-03-26 18:21:45 -04:00
ipc ipc/sem: Fix dangling sem_array access in semtimedop race 2022-12-08 11:24:00 +01:00
kernel bpf: Fix stackmap overflow check on 32-bit arches 2024-03-26 18:21:52 -04:00
lib net: blackhole_dev: fix build warning for ethh set but not used 2024-03-26 18:21:50 -04:00
LICENSES LICENSES/deprecated: add Zlib license text 2020-09-16 14:33:49 +02:00
mm mm/hugetlb: change hugetlb_reserve_pages() to type bool 2024-03-15 10:48:22 -04:00
net l2tp: fix incorrect parameter validation in the pppol2tp_getsockopt() function 2024-03-26 18:21:53 -04:00
samples samples/hw_breakpoint: fix building without module unloading 2023-09-23 11:01:09 +02:00
scripts gen_compile_commands: fix invalid escape sequence warning 2024-03-26 18:21:46 -04:00
security lsm: fix default return value of the socket_getpeersec_*() hooks 2024-03-15 10:48:20 -04:00
sound ASoC: wm8962: Fix up incorrect error message in wm8962_set_fll 2024-03-26 18:21:47 -04:00
tools bpftool: Silence build warning about calloc() 2024-03-26 18:21:49 -04:00
usr usr/include/Makefile: add linux/nfc.h to the compile-test coverage 2022-02-01 17:25:48 +01:00
virt KVM: use __vcalloc for very large allocations 2024-02-23 08:41:55 +01:00
.clang-format RDMA 5.10 pull request 2020-10-17 11:18:18 -07:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.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 kbuild: generate Module.symvers only when vmlinux exists 2021-05-19 10:12:59 +02:00
.mailmap mailmap: add two more addresses of Uwe Kleine-König 2020-12-06 10:19:07 -08:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Move Jason Cooper to CREDITS 2020-11-30 10:20:34 +01:00
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 Remove DECnet support from kernel 2023-06-21 15:45:38 +02:00
Makefile Linux 5.10.213 2024-03-15 14:40:25 -04:00
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.