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Eric Dumazet 6c7a0c308b ipv6: fix out-of-bound access in ip6_parse_tlv() 
[ Upstream commit 624085a31c ]

First problem is that optlen is fetched without checking
there is more than one byte to parse.

Fix this by taking care of IPV6_TLV_PAD1 before
fetching optlen (under appropriate sanity checks against len)

Second problem is that IPV6_TLV_PADN checks of zero
padding are performed before the check of remaining length.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Fixes: c1412fce7e ("net/ipv6/exthdrs.c: Strict PadN option checking")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-20 16:15:52 +02:00
arch ia64: mca_drv: fix incorrect array size calculation 2021-07-20 16:15:46 +02:00
block blk-wbt: make sure throttle is enabled properly 2021-07-20 16:15:48 +02:00
certs certs: Fix blacklist flag type confusion 2021-03-04 09:39:44 +01:00
crypto crypto: shash - avoid comparing pointers to exported functions under CFI 2021-07-20 16:15:44 +02:00
Documentation clocksource: Retry clock read if long delays detected 2021-07-20 16:15:46 +02:00
drivers ibmvnic: free tx_pool if tso_pool alloc fails 2021-07-20 16:15:52 +02:00
firmware
fs ocfs2: fix snprintf() checking 2021-07-20 16:15:49 +02:00
include random32: Fix implicit truncation warning in prandom_seed_state() 2021-07-20 16:15:46 +02:00
init pid: take a reference when initializing cad_pid 2021-06-10 13:24:06 +02:00
ipc ipc/util.c: sysvipc_find_ipc() incorrectly updates position index 2020-05-20 08:18:40 +02:00
kernel clocksource: Retry clock read if long delays detected 2021-07-20 16:15:46 +02:00
lib lib: vsprintf: Fix handling of number field widths in vsscanf 2021-07-20 16:15:45 +02:00
LICENSES
mm mm, futex: fix shared futex pgoff on shmem huge page 2021-07-11 12:49:30 +02:00
net ipv6: fix out-of-bound access in ip6_parse_tlv() 2021-07-20 16:15:52 +02:00
samples samples/bpf: Fix the error return code of xdp_redirect's main() 2021-07-20 16:15:51 +02:00
scripts scripts: switch explicitly to Python 3 2021-05-22 10:59:50 +02:00
security evm: fix writing <securityfs>/evm overflow 2021-07-20 16:15:47 +02:00
sound ALSA: usb-audio: Fix OOB access at proc output 2021-07-20 16:15:38 +02:00
tools tools/bpftool: Fix error return code in do_batch() 2021-07-20 16:15:49 +02:00
usr initramfs: restore default compression behavior 2020-04-13 10:44:59 +02:00
virt KVM: arm/arm64: Fix KVM_VGIC_V3_ADDR_TYPE_REDIST read 2021-06-30 08:48:27 -04:00
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MAINTAINERS Documentation/llvm: add documentation on building w/ Clang/LLVM 2020-09-26 18:01:31 +02:00
Makefile Linux 4.19.197 2021-07-11 12:49:32 +02:00
README

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.
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.