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Filename Latest commit message Latest commit date
Felix Fietkau 98268bf6c9 cfg80211: fix page refcount issue in A-MSDU decap
commit 81c044fc3bdc5b7be967cd3682528ea94b58c06a upstream.

The fragments attached to a skb can be part of a compound page. In that case,
page_ref_inc will increment the refcount for the wrong page. Fix this by
using get_page instead, which calls page_ref_inc on the compound head and
also checks for overflow.

Fixes: 2b67f944f8 ("cfg80211: reuse existing page fragments in A-MSDU rx")
Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20200113182107.20461-1-nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-23 08:22:47 +01:00
arch ARM: dts: imx7: Fix Toradex Colibri iMX7S 256MB NAND flash support 2020-01-23 08:22:43 +01:00
block block: Fix the type of 'sts' in bsg_queue_rq() 2020-01-23 08:22:44 +01:00
certs
crypto
Documentation
drivers i2c: tegra: Properly disable runtime PM on driver's probe error 2020-01-23 08:22:46 +01:00
fs Btrfs: always copy scrub arguments back to user space 2020-01-23 08:22:41 +01:00
include bpf: Sockmap/tls, push write_space updates through ulp updates 2020-01-23 08:22:45 +01:00
init
ipc
kernel bpf: Fix incorrect verifier simulation of ARSH under ALU32 2020-01-23 08:22:44 +01:00
lib
LICENSES
mm mm/page-writeback.c: avoid potential division by zero in wb_min_max_ratio() 2020-01-23 08:22:41 +01:00
net cfg80211: fix page refcount issue in A-MSDU decap 2020-01-23 08:22:47 +01:00
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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.