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Filename Latest commit message Latest commit date
Anssi Hannula d8f98a23b4 xhci: fix uninitialized string returned by xhci_decode_ctrl_ctx()
commit 05519b8589a679edb8fa781259893d20bece04ad upstream.

xhci_decode_ctrl_ctx() returns the untouched buffer as-is if both "drop"
and "add" parameters are zero.

Fix the function to return an empty string in that case.

It was not immediately clear from the possible call chains whether this
issue is currently actually triggerable or not.

Note that before commit 4843b4b5ec64 ("xhci: fix even more unsafe memory
usage in xhci tracing") the result effect in the failure case was different
as a static buffer was used here, but the code still worked incorrectly.

Fixes: 90d6d5731d ("xhci: Add tracing for input control context")
Cc: stable@vger.kernel.org
Signed-off-by: Anssi Hannula <anssi.hannula@bitwise.fi>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
commit 4843b4b5ec64 ("xhci: fix even more unsafe memory usage in xhci tracing")
Link: https://lore.kernel.org/r/20220303110903.1662404-4-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-04-15 14:17:57 +02:00
arch nds32: fix access_ok() checks in get/put_user 2022-03-28 08:46:48 +02:00
block block: Fix fsync always failed if once failed 2022-03-08 19:07:47 +01:00
certs
crypto
Documentation swiotlb: fix info leak with DMA_FROM_DEVICE 2022-04-15 14:17:55 +02:00
drivers xhci: fix uninitialized string returned by xhci_decode_ctrl_ctx() 2022-04-15 14:17:57 +02:00
fs nfsd: Containerise filecache laundrette 2022-03-28 08:46:43 +02:00
include block: Add a helper to validate the block size 2022-04-15 14:17:57 +02:00
init bpf: Add kconfig knob for disabling unpriv bpf by default 2022-02-16 12:52:49 +01:00
ipc
kernel swiotlb: fix info leak with DMA_FROM_DEVICE 2022-04-15 14:17:55 +02:00
lib ARM: 9178/1: fix unmet dependency on BITREVERSE for HAVE_ARCH_BITREVERSE 2022-03-19 13:40:16 +01:00
LICENSES
mm memfd: fix F_SEAL_WRITE after shmem huge page allocated 2022-03-08 19:07:49 +01:00
net af_key: add __GFP_ZERO flag for compose_sadb_supported in function pfkey_register 2022-04-15 14:17:56 +02:00
samples
scripts kconfig: fix failing to generate auto.conf 2022-02-23 12:00:01 +01:00
security ima: Do not print policy rule with inactive LSM labels 2022-02-16 12:52:47 +01:00
sound ALSA: hda/realtek: Add quirk for ASUS GA402 2022-03-28 08:46:46 +02:00
tools Revert "selftests/bpf: Add test for bpf_timer overwriting crash" 2022-03-23 09:12:08 +01:00
usr
virt KVM: arm64: Allow SMCCC_ARCH_WORKAROUND_3 to be discovered and migrated 2022-03-19 13:40:15 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile Linux 5.4.188 2022-03-28 08:46:49 +02:00
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.