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Daniel Borkmann e29352f162 net, neigh: Fix NTF_EXT_LEARNED in combination with NTF_USE 
[ Upstream commit e4400bbf5b15750e1b59bf4722d18d99be60c69f ]

The NTF_EXT_LEARNED neigh flag is usually propagated back to user space
upon dump of the neighbor table. However, when used in combination with
NTF_USE flag this is not the case despite exempting the entry from the
garbage collector. This results in inconsistent state since entries are
typically marked in neigh->flags with NTF_EXT_LEARNED, but here they are
not. Fix it by propagating the creation flag to ___neigh_create().

Before fix:

  # ./ip/ip n replace 192.168.178.30 dev enp5s0 use extern_learn
  # ./ip/ip n
  192.168.178.30 dev enp5s0 lladdr f4:8c:50:5e:71:9a REACHABLE
  [...]

After fix:

  # ./ip/ip n replace 192.168.178.30 dev enp5s0 use extern_learn
  # ./ip/ip n
  192.168.178.30 dev enp5s0 lladdr f4:8c:50:5e:71:9a extern_learn REACHABLE
  [...]

Fixes: 9ce33e4653 ("neighbour: support for NTF_EXT_LEARNED flag")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Roopa Prabhu <roopa@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18 14:04:07 +01:00
arch arm64: mm: update max_pfn after memory hotplug 2021-11-18 14:04:04 +01:00
block block: remove inaccurate requeue check 2021-11-18 14:03:58 +01:00
certs certs: Trigger creation of RSA module signing key if it's not an RSA key 2021-09-15 09:50:29 +02:00
crypto crypto: ecc - fix CRYPTO_DEFAULT_RNG dependency 2021-11-18 14:04:05 +01:00
Documentation fscrypt: allow 256-bit master keys with AES-256-XTS 2021-11-18 14:03:54 +01:00
drivers memstick: jmb38x_ms: use appropriate free function in jmb38x_ms_alloc_host() 2021-11-18 14:04:07 +01:00
fs erofs: don't trigger WARN() when decompression fails 2021-11-18 14:04:01 +01:00
include task_stack: Fix end_of_stack() for architectures with upwards-growing stack 2021-11-18 14:04:01 +01:00
init sched/core: Initialize the idle task with preemption disabled 2021-07-14 16:55:50 +02:00
ipc ipc/mqueue, msg, sem: avoid relying on a stack reference past its expiry 2021-05-26 12:06:54 +02:00
kernel rcu: Always inline rcu_dynticks_task*_{enter,exit}() 2021-11-18 14:04:06 +01:00
lib lib/xz: Validate the value before assigning it to an enum variable 2021-11-18 14:03:58 +01:00
LICENSES LICENSES/deprecated: add Zlib license text 2020-09-16 14:33:49 +02:00
mm mm: khugepaged: skip huge page collapse for special files 2021-11-06 14:10:09 +01:00
net net, neigh: Fix NTF_EXT_LEARNED in combination with NTF_USE 2021-11-18 14:04:07 +01:00
samples samples: bpf: Fix tracex7 error raised on the missing argument 2021-09-18 13:40:23 +02:00
scripts leaking_addresses: Always print a trailing newline 2021-11-18 14:03:57 +01:00
security smackfs: use __GFP_NOFAIL for smk_cipso_doi() 2021-11-18 14:03:59 +01:00
sound ALSA: mixer: fix deadlock in snd_mixer_oss_set_volume 2021-11-18 14:03:49 +01:00
tools objtool: Fix static_call list generation 2021-11-18 14:04:02 +01:00
usr Merge branch 'work.fdpic' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-08-07 13:29:39 -07:00
virt KVM: do not shrink halt_poll_ns below grow_start 2021-10-09 14:40:58 +02:00
.clang-format RDMA 5.10 pull request 2020-10-17 11:18:18 -07:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore kbuild: generate Module.symvers only when vmlinux exists 2021-05-19 10:12:59 +02:00
.mailmap mailmap: add two more addresses of Uwe Kleine-König 2020-12-06 10:19:07 -08:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Move Jason Cooper to CREDITS 2020-11-30 10:20:34 +01:00
Kbuild
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS f2fs: move ioctl interface definitions to separated file 2021-05-19 10:13:00 +02:00
Makefile Linux 5.10.79 2021-11-12 14:58:35 +01:00
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.