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Filename Latest commit message Latest commit date
Andrea Mayer 487f0f77f1 seg6: fix skb checksum evaluation in SRH encapsulation/insertion 
[ Upstream commit df8386d13ea280d55beee1b95f61a59234a3798b ]

Support for SRH encapsulation and insertion was introduced with
commit 6c8702c60b ("ipv6: sr: add support for SRH encapsulation and
injection with lwtunnels"), through the seg6_do_srh_encap() and
seg6_do_srh_inline() functions, respectively.
The former encapsulates the packet in an outer IPv6 header along with
the SRH, while the latter inserts the SRH between the IPv6 header and
the payload. Then, the headers are initialized/updated according to the
operating mode (i.e., encap/inline).
Finally, the skb checksum is calculated to reflect the changes applied
to the headers.

The IPv6 payload length ('payload_len') is not initialized
within seg6_do_srh_{inline,encap}() but is deferred in seg6_do_srh(), i.e.
the caller of seg6_do_srh_{inline,encap}().
However, this operation invalidates the skb checksum, since the
'payload_len' is updated only after the checksum is evaluated.

To solve this issue, the initialization of the IPv6 payload length is
moved from seg6_do_srh() directly into the seg6_do_srh_{inline,encap}()
functions and before the skb checksum update takes place.

Fixes: 6c8702c60b ("ipv6: sr: add support for SRH encapsulation and injection with lwtunnels")
Reported-by: Paolo Abeni <pabeni@redhat.com>
Link: https://lore.kernel.org/all/20220705190727.69d532417be7438b15404ee1@uniroma2.it
Signed-off-by: Andrea Mayer <andrea.mayer@uniroma2.it>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-07-21 20:59:23 +02:00
arch ARM: dts: sunxi: Fix SPI NOR campatible on Orange Pi Zero 2022-07-21 20:59:21 +02:00
block block: fix bio_clone_blkg_association() to associate with proper blkcg_gq 2022-06-14 18:11:50 +02:00
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2022-06-22 14:11:22 +02:00
crypto crypto: drbg - make reseeding from get_random_bytes() synchronous 2022-06-22 14:11:18 +02:00
Documentation ipv4: Fix data-races around sysctl_ip_dynaddr. 2022-07-21 20:59:22 +02:00
drivers sfc: fix use after free when disabling sriov 2022-07-21 20:59:23 +02:00
fs ext4: fix race condition between ext4_write and ext4_convert_inline_data 2022-07-21 20:59:18 +02:00
include raw: Fix a data-race around sysctl_raw_l3mdev_accept. 2022-07-21 20:59:22 +02:00
init random: handle latent entropy and command line from random_init() 2022-06-22 14:11:17 +02:00
ipc ipc/mqueue: use get_tree_nodev() in mqueue_get_tree() 2022-06-14 18:11:41 +02:00
kernel sched/rt: Disable RT_RUNTIME_SHARE by default 2022-07-21 20:59:18 +02:00
lib ida: don't use BUG_ON() for debugging 2022-07-12 16:30:49 +02:00
LICENSES
mm mm/slub: add missing TID updates on slab deactivation 2022-07-12 16:30:46 +02:00
net seg6: fix skb checksum evaluation in SRH encapsulation/insertion 2022-07-21 20:59:23 +02:00
samples
scripts modpost: fix section mismatch check for exported init/exit sections 2022-06-29 08:58:49 +02:00
security ima: Fix a potential integer overflow in ima_appraise_measurement 2022-07-21 20:59:19 +02:00
sound ASoC: sgtl5000: Fix noise on shutdown/remove 2022-07-21 20:59:19 +02:00
tools selftests: forwarding: fix error message in learning_test 2022-07-12 16:30:49 +02:00
usr
virt
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.cocciconfig
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MAINTAINERS MAINTAINERS: co-maintain random.c 2022-06-22 14:11:05 +02:00
Makefile Linux 5.4.206 2022-07-15 10:14:53 +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.

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.