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Leon Romanovsky 94b95dfaa8 xfrm: release all offloaded policy memory 
Failure to add offloaded policy will cause to the following
error once user will try to reload driver.

Unregister_netdevice: waiting for eth3 to become free. Usage count = 2

This was caused by xfrm_dev_policy_add() which increments reference
to net_device. That reference was supposed to be decremented
in xfrm_dev_policy_free(). However the latter wasn't called.

 unregister_netdevice: waiting for eth3 to become free. Usage count = 2
 leaked reference.
  xfrm_dev_policy_add+0xff/0x3d0
  xfrm_policy_construct+0x352/0x420
  xfrm_add_policy+0x179/0x320
  xfrm_user_rcv_msg+0x1d2/0x3d0
  netlink_rcv_skb+0xe0/0x210
  xfrm_netlink_rcv+0x45/0x50
  netlink_unicast+0x346/0x490
  netlink_sendmsg+0x3b0/0x6c0
  sock_sendmsg+0x73/0xc0
  sock_write_iter+0x13b/0x1f0
  vfs_write+0x528/0x5d0
  ksys_write+0x120/0x150
  do_syscall_64+0x3d/0x90
  entry_SYSCALL_64_after_hwframe+0x46/0xb0

Fixes: 919e43fad5 ("xfrm: add an interface to offload policy")
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
History 2023-04-21 08:51:48 +02:00
arch Xtensa fixes for v6.3: 2023-03-29 10:24:07 -07:00
block block: remove obsolete config BLOCK_COMPAT 2023-03-16 09:35:44 -06:00
certs Kbuild updates for v6.3 2023-02-26 11:53:25 -08:00
crypto asymmetric_keys: log on fatal failures in PE/pkcs7 2023-03-21 16:23:56 +00:00
Documentation Raw NAND controller driver fixes: 2023-03-27 09:41:17 -07:00
drivers net: stmmac: Add queue reset into stmmac_xdp_open() function 2023-04-05 19:02:56 -07:00
fs zonefs: Do not propagate iomap_dio_rw() ENOTBLK error to user space 2023-03-30 20:56:02 +09:00
include raw: Fix NULL deref in raw_get_next(). 2023-04-04 18:56:58 -07:00
init bootconfig: Change message if no bootconfig with CONFIG_BOOT_CONFIG_FORCE=y 2023-03-22 22:21:43 +09:00
io_uring block-6.3-2023-03-24 2023-03-24 14:10:39 -07:00
ipc Merge branch 'work.namespace' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2023-02-24 19:20:07 -08:00
kernel - Fix a corner case where vruntime of a task is not being sanitized 2023-03-26 09:18:30 -07:00
lib Fixes for 6.3-rc3: 2023-03-25 12:57:34 -07:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm 21 hotfixes, 8 of which are cc:stable. 11 are for MM, the remainder are 2023-03-24 18:06:11 -07:00
net xfrm: release all offloaded policy memory 2023-04-21 08:51:48 +02:00
rust Rust fixes for 6.3-rc1 2023-03-03 14:51:15 -08:00
samples LoongArch changes for v6.3 2023-03-01 09:27:00 -08:00
scripts checksyscalls: ignore fstat to silence build warning on LoongArch 2023-03-23 17:18:32 -07:00
security keys: Do not cache key in task struct if key is requested from kernel thread 2023-03-21 16:22:40 +00:00
sound ALSA: hda/realtek: Add quirk for Lenovo ZhaoYang CF4620Z 2023-03-29 14:45:07 +02:00
tools selftests: net: rps_default_mask.sh: delete veth link specifically 2023-04-05 18:59:32 -07:00
usr usr/gen_init_cpio.c: remove unnecessary -1 values from int file 2022-10-03 14:21:44 -07:00
virt KVM/riscv changes for 6.3 2023-02-15 12:33:28 -05:00
.clang-format cpumask: re-introduce constant-sized cpumask optimizations 2023-03-05 14:30:34 -08:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for *.dtso files 2023-02-26 15:28:23 +09:00
.gitignore kbuild: rpm-pkg: move source components to rpmbuild/SOURCES 2023-03-16 22:45:56 +09:00
.mailmap mailmap: add entries for Richard Leitner 2023-03-23 17:18:35 -07:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS There is no particular theme here - mainly quick hits all over the tree. 2023-02-23 17:55:40 -08:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS Including fixes from CAN and WPAN. 2023-03-30 14:05:21 -07:00
Makefile Linux 6.3-rc4 2023-03-26 14:40:20 -07:00
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.