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Filename Latest commit message Latest commit date
Petr Machata 9139f13e01 net: DCB: Validate DCB_ATTR_DCB_BUFFER argument 
[ Upstream commit 297e77e53eadb332d5062913447b104a772dc33b ]

The parameter passed via DCB_ATTR_DCB_BUFFER is a struct dcbnl_buffer. The
field prio2buffer is an array of IEEE_8021Q_MAX_PRIORITIES bytes, where
each value is a number of a buffer to direct that priority's traffic to.
That value is however never validated to lie within the bounds set by
DCBX_MAX_BUFFERS. The only driver that currently implements the callback is
mlx5 (maintainers CCd), and that does not do any validation either, in
particual allowing incorrect configuration if the prio2buffer value does
not fit into 4 bits.

Instead of offloading the need to validate the buffer index to drivers, do
it right there in core, and bounce the request if the value is too large.

CC: Parav Pandit <parav@nvidia.com>
CC: Saeed Mahameed <saeedm@nvidia.com>
Fixes: e549f6f9c0 ("net/dcb: Add dcbnl buffer attribute")
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-26 18:03:12 +02:00
arch powerpc/dma: Fix dma_map_ops::get_required_mask 2020-09-23 12:40:46 +02:00
block block: only call sched requeue_request() for scheduled requests 2020-09-23 12:40:37 +02:00
certs
crypto crypto: af_alg - Work around empty control messages without MSG_MORE 2020-09-03 11:27:05 +02:00
Documentation affs: fix basic permission bits to actually work 2020-09-09 19:12:34 +02:00
drivers hdlc_ppp: add range checks in ppp_cp_parse_cr() 2020-09-26 18:03:12 +02:00
fs f2fs: Return EOF on unaligned end of file DIO read 2020-09-23 12:40:38 +02:00
include ipv4: Initialize flowi4_multipath_hash in data path 2020-09-26 18:03:12 +02:00
init x86: Fix early boot crash on gcc-10, third try 2020-05-20 08:20:34 +02:00
ipc
kernel kprobes: fix kill kprobe which has been marked as gone 2020-09-26 18:03:11 +02:00
lib kobject: Restore old behaviour of kobject_del(NULL) 2020-09-17 13:47:52 +02:00
LICENSES
mm mm/thp: fix __split_huge_pmd_locked() for migration PMD 2020-09-26 18:03:11 +02:00
net net: DCB: Validate DCB_ATTR_DCB_BUFFER argument 2020-09-26 18:03:12 +02:00
samples bpf: Fix fds_example SIGSEGV error 2020-08-19 08:16:03 +02:00
scripts checkpatch: fix the usage of capture group ( ... ) 2020-09-09 19:12:37 +02:00
security Smack: prevent underflow in smk_set_cipso() 2020-08-19 08:16:16 +02:00
sound ALSA: hda/realtek - The Mic on a RedmiBook doesn't work 2020-09-23 12:40:45 +02:00
tools selftests/vm: fix display of page size in map_hugetlb 2020-09-23 12:40:46 +02:00
usr
virt KVM: fix memory leak in kvm_io_bus_unregister_dev() 2020-09-17 13:47:54 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS Documentation/llvm: add documentation on building w/ Clang/LLVM 2020-08-26 10:40:46 +02:00
Makefile Linux 5.4.67 2020-09-23 12:40:47 +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.