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Zhengchao Shao cf2010aa1c netdevsim: fix memory leak in nsim_bus_dev_new()
If device_register() failed in nsim_bus_dev_new(), the value of reference
in nsim_bus_dev->dev is 1. obj->name in nsim_bus_dev->dev will not be
released.

unreferenced object 0xffff88810352c480 (size 16):
  comm "echo", pid 5691, jiffies 4294945921 (age 133.270s)
  hex dump (first 16 bytes):
    6e 65 74 64 65 76 73 69 6d 31 00 00 00 00 00 00  netdevsim1......
  backtrace:
    [<000000005e2e5e26>] __kmalloc_node_track_caller+0x3a/0xb0
    [<0000000094ca4fc8>] kvasprintf+0xc3/0x160
    [<00000000aad09bcc>] kvasprintf_const+0x55/0x180
    [<000000009bac868d>] kobject_set_name_vargs+0x56/0x150
    [<000000007c1a5d70>] dev_set_name+0xbb/0xf0
    [<00000000ad0d126b>] device_add+0x1f8/0x1cb0
    [<00000000c222ae24>] new_device_store+0x3b6/0x5e0
    [<0000000043593421>] bus_attr_store+0x72/0xa0
    [<00000000cbb1833a>] sysfs_kf_write+0x106/0x160
    [<00000000d0dedb8a>] kernfs_fop_write_iter+0x3a8/0x5a0
    [<00000000770b66e2>] vfs_write+0x8f0/0xc80
    [<0000000078bb39be>] ksys_write+0x106/0x210
    [<00000000005e55a4>] do_syscall_64+0x35/0x80
    [<00000000eaa40bbc>] entry_SYSCALL_64_after_hwframe+0x46/0xb0

Fixes: 40e4fe4ce1 ("netdevsim: move device registration and related code to bus.c")
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Link: https://lore.kernel.org/r/20221026015405.128795-1-shaozhengchao@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-10-27 10:47:09 -07:00
arch Including fixes from bpf. 2022-10-24 12:43:51 -07:00
block block-6.1-2022-10-20 2022-10-21 15:14:14 -07:00
certs certs: make system keyring depend on built-in x509 parser 2022-09-24 04:31:18 +09:00
crypto treewide: use get_random_bytes() when possible 2022-10-11 17:42:58 -06:00
Documentation Including fixes from bpf. 2022-10-24 12:43:51 -07:00
drivers netdevsim: fix memory leak in nsim_bus_dev_new() 2022-10-27 10:47:09 -07:00
fs First batch of EFI fixes for v6.1 2022-10-21 18:02:36 -07:00
include genetlink: piggy back on resv_op to default to a reject policy 2022-10-24 19:08:46 -07:00
init init: Kconfig: fix spelling mistake "satify" -> "satisfy" 2022-10-20 21:27:22 -07:00
io_uring io_uring/net: fail zc sendmsg when unsupported by socket 2022-10-22 08:43:03 -06:00
ipc - hfs and hfsplus kmap API modernization from Fabio Francesco 2022-10-12 11:00:22 -07:00
kernel Including fixes from bpf. 2022-10-24 12:43:51 -07:00
lib rhashtable: make test actually random 2022-10-26 13:39:09 +01:00
LICENSES LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers 2021-12-16 14:33:10 +01:00
mm mm/huge_memory: do not clobber swp_entry_t during THP split 2022-10-20 21:27:24 -07:00
net linux-can-fixes-for-6.1-20221027 2022-10-27 10:30:42 -07:00
rust Kbuild: add Rust support 2022-09-28 09:02:20 +02:00
samples VFIO updates for v6.1-rc1 2022-10-12 14:46:48 -07:00
scripts Kbuild fixes for v6.1 2022-10-16 11:12:22 -07:00
security selinux: enable use of both GFP_KERNEL and GFP_ATOMIC in convert_context() 2022-10-19 09:55:53 -04:00
sound sound fixes for 6.1-rc1 2022-10-14 13:22:14 -07:00
tools selftests: add openvswitch selftest suite 2022-10-27 12:31:24 +02:00
usr usr/gen_init_cpio.c: remove unnecessary -1 values from int file 2022-10-03 14:21:44 -07:00
virt kvm: Add support for arch compat vm ioctls 2022-10-22 05:15:23 -04:00
.clang-format PCI/DOE: Add DOE mailbox support functions 2022-07-19 15:38:04 -07:00
.cocciconfig
.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 dts files 2019-12-04 19:44:11 -08:00
.gitignore Kbuild: add Rust support 2022-09-28 09:02:20 +02:00
.mailmap mailmap: update email for Qais Yousef 2022-10-20 21:27:21 -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 drm for 5.20/6.0 2022-08-03 19:52:08 -07:00
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 selftests: add openvswitch selftest suite 2022-10-27 12:31:24 +02:00
Makefile Linux 6.1-rc2 2022-10-23 15:27:33 -07:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

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.