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Filename Latest commit message Latest commit date
M A Ramdhan 808211a8d4 net/sched: cls_fw: Fix improper refcount update leads to use-after-free 
[ Upstream commit 0323bce598eea038714f941ce2b22541c46d488f ]

In the event of a failure in tcf_change_indev(), fw_set_parms() will
immediately return an error after incrementing or decrementing
reference counter in tcf_bind_filter().  If attacker can control
reference counter to zero and make reference freed, leading to
use after free.

In order to prevent this, move the point of possible failure above the
point where the TC_FW_CLASSID is handled.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Reported-by: M A Ramdhan <ramdhan@starlabs.sg>
Signed-off-by: M A Ramdhan <ramdhan@starlabs.sg>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Reviewed-by: Pedro Tammela <pctammela@mojatatu.com>
Message-ID: <20230705161530.52003-1-ramdhan@starlabs.sg>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-27 08:37:30 +02:00
arch ARM: orion5x: fix d2net gpio initialization 2023-07-27 08:37:26 +02:00
block block/partition: fix signedness issue for Amiga partitions 2023-07-27 08:37:29 +02:00
certs
crypto
Documentation fs: Lock moved directories 2023-07-27 08:37:26 +02:00
drivers net: mvneta: fix txq_map in case of txq_number==1 2023-07-27 08:37:30 +02:00
fs fanotify: disallow mount/sb marks on kernel internal pseudo fs 2023-07-27 08:37:26 +02:00
include drm/panel: Add and fill drm_panel type field 2023-07-27 08:37:29 +02:00
init
ipc
kernel workqueue: clean up WORK_* constant types, clarify masking 2023-07-27 08:37:29 +02:00
lib lib/ts_bm: reset initial match offset for every block of text 2023-07-27 08:37:12 +02:00
LICENSES
mm
net net/sched: cls_fw: Fix improper refcount update leads to use-after-free 2023-07-27 08:37:30 +02:00
samples samples/bpf: Fix buffer overflow in tcp_basertt 2023-07-27 08:37:07 +02:00
scripts modpost: fix off by one in is_executable_section() 2023-07-27 08:37:18 +02:00
security integrity: Fix possible multiple allocation in integrity_inode_get() 2023-07-27 08:37:25 +02:00
sound ALSA: jack: Fix mutex call in snd_jack_report() 2023-07-27 08:37:24 +02:00
tools perf dwarf-aux: Fix off-by-one in die_get_varname() 2023-07-27 08:37:17 +02:00
usr
virt
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.cocciconfig
.get_maintainer.ignore
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COPYING
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Kbuild
Kconfig
MAINTAINERS
Makefile Linux 5.4.250 2023-07-24 19:10:53 +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.