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Filename Latest commit message Latest commit date
Shigeru Yoshida 1ec21fde58 ipv4: ip_gre: Avoid skb_pull() failure in ipgre_xmit()
[ Upstream commit 80d875cfc9d3711a029f234ef7d680db79e8fa4b ]

In ipgre_xmit(), skb_pull() may fail even if pskb_inet_may_pull() returns
true. For example, applications can use PF_PACKET to create a malformed
packet with no IP header. This type of packet causes a problem such as
uninit-value access.

This patch ensures that skb_pull() can pull the required size by checking
the skb with pskb_network_may_pull() before skb_pull().

Fixes: c544193214 ("GRE: Refactor GRE tunneling code.")
Signed-off-by: Shigeru Yoshida <syoshida@redhat.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Suman Ghosh <sumang@marvell.com>
Link: https://lore.kernel.org/r/20231202161441.221135-1-syoshida@redhat.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-12-13 18:18:12 +01:00
arch s390/cmma: fix detection of DAT pages 2023-12-08 08:44:27 +01:00
block
certs
crypto crypto: pcrypt - Fix hungtask for PADATA_RESET 2023-11-28 16:50:14 +00:00
Documentation firmware: ti_sci: Replace HTTP links with HTTPS ones 2023-11-20 10:30:12 +01:00
drivers arcnet: restoring support for multiple Sohard Arcnet cards 2023-12-13 18:18:12 +01:00
fs ovl: skip overlayfs superblocks at global sync 2023-12-08 08:44:27 +01:00
include of: Add missing 'Return' section in kerneldoc comments 2023-12-13 18:18:11 +01:00
init
ipc
kernel hrtimers: Push pending hrtimers away from outgoing CPU earlier 2023-12-13 18:18:09 +01:00
lib kobject: Fix slab-out-of-bounds in fill_kobj_path() 2023-11-08 11:23:38 +01:00
LICENSES
mm mm/cma: use nth_page() in place of direct struct page manipulation 2023-11-28 16:50:19 +00:00
net ipv4: ip_gre: Avoid skb_pull() failure in ipgre_xmit() 2023-12-13 18:18:12 +01:00
samples
scripts kconfig: fix memory leak from range properties 2023-12-13 18:18:10 +01:00
security ima: detect changes to the backing overlay file 2023-12-08 08:44:27 +01:00
sound ALSA: hda/realtek: Add supported ALC257 for ChromeOS 2023-12-08 08:44:26 +01:00
tools tools/power/turbostat: Fix a knl bug 2023-11-28 16:50:17 +00:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile Linux 5.4.263 2023-12-08 08:44:28 +01:00
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.