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Marek Szyprowski c91b922b41 spi: Ensure that sg_table won't be used after being freed 
[ Upstream commit 8e9204cddcc3fea9affcfa411715ba4f66e97587 ]

SPI code checks for non-zero sgt->orig_nents to determine if the buffer
has been DMA-mapped. Ensure that sg_table is really zeroed after free to
avoid potential NULL pointer dereference if the given SPI xfer object is
reused again without being DMA-mapped.

Fixes: 0c17ba73c08f ("spi: Fix cache corruption due to DMA/PIO overlap")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/20220930113408.19720-1-m.szyprowski@samsung.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-26 12:34:48 +02:00
arch
x86/cpu: Include the header of init_ia32_feat_ctl()'s prototype
2022-10-26 12:34:45 +02:00
block
blk-wbt: call rq_qos_add() after wb_normal is initialized
2022-10-26 12:34:33 +02:00
certs
certs/blacklist_hashes.c: fix const confusion in certs blacklist
2022-06-22 14:22:01 +02:00
crypto
KEYS: asymmetric: enforce SM2 signature use pkey algo
2022-08-17 14:24:28 +02:00
Documentation
fs: record I_DIRTY_TIME even if inode already has I_DIRTY_INODE
2022-10-26 12:34:27 +02:00
drivers
spi: Ensure that sg_table won't be used after being freed
2022-10-26 12:34:48 +02:00
fs
NFSD: Fix handling of oversized NFSv4 COMPOUND requests
2022-10-26 12:34:38 +02:00
include
tcp: fix tcp_cwnd_validate() to not forget is_cwnd_limited
2022-10-26 12:34:48 +02:00
init
stack: Declare {randomize_,}kstack_offset to fix Sparse warnings
2022-08-17 14:23:10 +02:00
ipc
ipc/mqueue: use get_tree_nodev() in mqueue_get_tree()
2022-06-09 10:23:10 +02:00
kernel
bpf: Ensure correct locking around vulnerable function find_vpid()
2022-10-26 12:34:44 +02:00
lib
crypto: lib - remove unneeded selection of XOR_BLOCKS
2022-09-05 10:30:03 +02:00
LICENSES
LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes"
2021-07-15 06:31:24 -06:00
mm
mm/mmap: undo ->mmap() when arch_validate_flags() fails
2022-10-26 12:34:24 +02:00
net
tcp: fix tcp_cwnd_validate() to not forget is_cwnd_limited
2022-10-26 12:34:48 +02:00
samples
samples/landlock: Format with clang-format
2022-06-09 10:23:23 +02:00
scripts
selinux: use "grep -E" instead of "egrep"
2022-10-26 12:34:35 +02:00
security
ima: fix blocking of security.ima xattrs of unsupported algorithms
2022-10-26 12:34:35 +02:00
sound
ASoC: wcd934x: fix order of Slimbus unprepare/disable
2022-10-26 12:34:21 +02:00
tools
selftests/xsk: Avoid use-after-free on ctx
2022-10-26 12:34:41 +02:00
usr
usr/include/Makefile: add linux/nfc.h to the compile-test coverage
2022-02-01 17:27:15 +01:00
virt
KVM: SEV: add cache flush to solve SEV cache incoherency issues
2022-09-23 14:15:52 +02:00
.clang-format
clang-format: Update with the latest for_each macro list
2021-05-12 23:32:39 +02:00
.cocciconfig
…
.get_maintainer.ignore
Opt out of scripts/get_maintainer.pl
2019-05-16 10:53:40 -07:00
.gitattributes
.gitattributes: use 'dts' diff driver for dts files
2019-12-04 19:44:11 -08:00
.gitignore
.gitignore: ignore only top-level modules.builtin
2021-05-02 00:43:35 +09:00
.mailmap
mailmap: add Andrej Shadura
2021-10-18 20:22:03 -10:00
COPYING
COPYING: state that all contributions really are covered by this file
2020-02-10 13:32:20 -08:00
CREDITS
MAINTAINERS: Move Daniel Drake to credits
2021-09-21 08:34:58 +03:00
Kbuild
kbuild: rename hostprogs-y/always to hostprogs/always-y
2020-02-04 01:53:07 +09:00
Kconfig
kbuild: ensure full rebuild when the compiler is updated
2020-05-12 13:28:33 +09:00
MAINTAINERS
Input: goodix - add a goodix.h header file
2022-07-12 16:34:51 +02:00
Makefile
hardening: Remove Clang's enable flag for -ftrivial-auto-var-init=zero
2022-10-26 12:34:28 +02:00
README
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00

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.
Description
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