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Filename Latest commit message Latest commit date
Yang Yingliang c23b9a5610 net/802/garp: fix memleak in garp_request_join() 
[ Upstream commit 42ca63f980842918560b25f0244307fd83b4777c ]

I got kmemleak report when doing fuzz test:

BUG: memory leak
unreferenced object 0xffff88810c909b80 (size 64):
  comm "syz", pid 957, jiffies 4295220394 (age 399.090s)
  hex dump (first 32 bytes):
    01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 08 00 00 00 01 02 00 04  ................
  backtrace:
    [<00000000ca1f2e2e>] garp_request_join+0x285/0x3d0
    [<00000000bf153351>] vlan_gvrp_request_join+0x15b/0x190
    [<0000000024005e72>] vlan_dev_open+0x706/0x980
    [<00000000dc20c4d4>] __dev_open+0x2bb/0x460
    [<0000000066573004>] __dev_change_flags+0x501/0x650
    [<0000000035b42f83>] rtnl_configure_link+0xee/0x280
    [<00000000a5e69de0>] __rtnl_newlink+0xed5/0x1550
    [<00000000a5258f4a>] rtnl_newlink+0x66/0x90
    [<00000000506568ee>] rtnetlink_rcv_msg+0x439/0xbd0
    [<00000000b7eaeae1>] netlink_rcv_skb+0x14d/0x420
    [<00000000c373ce66>] netlink_unicast+0x550/0x750
    [<00000000ec74ce74>] netlink_sendmsg+0x88b/0xda0
    [<00000000381ff246>] sock_sendmsg+0xc9/0x120
    [<000000008f6a2db3>] ____sys_sendmsg+0x6e8/0x820
    [<000000008d9c1735>] ___sys_sendmsg+0x145/0x1c0
    [<00000000aa39dd8b>] __sys_sendmsg+0xfe/0x1d0

Calling garp_request_leave() after garp_request_join(), the attr->state
is set to GARP_APPLICANT_VO, garp_attr_destroy() won't be called in last
transmit event in garp_uninit_applicant(), the attr of applicant will be
leaked. To fix this leak, iterate and free each attr of applicant before
rerturning from garp_uninit_applicant().

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-31 08:19:38 +02:00
arch KVM: x86: determine if an exception has an error code only when injecting it. 2021-07-31 08:19:37 +02:00
block rq-qos: fix missed wake-ups in rq_qos_throttle try two 2021-07-19 08:53:16 +02:00
certs certs: Move load_system_certificate_list to a common function 2021-06-30 08:47:55 -04:00
crypto crypto: shash - avoid comparing pointers to exported functions under CFI 2021-07-14 16:53:13 +02:00
Documentation userfaultfd: do not untag user pointers 2021-07-28 13:31:01 +02:00
drivers xhci: add xhci_get_virt_ep() helper 2021-07-28 13:31:02 +02:00
fs cgroup1: fix leaked context root causing sporadic NULL deref in LTP 2021-07-31 08:19:37 +02:00
include cgroup1: fix leaked context root causing sporadic NULL deref in LTP 2021-07-31 08:19:37 +02:00
init
ipc
kernel cgroup1: fix leaked context root causing sporadic NULL deref in LTP 2021-07-31 08:19:37 +02:00
lib lib/decompress_unlz4.c: correctly handle zero-padding around initrds. 2021-07-20 16:10:46 +02:00
LICENSES
mm mm: slab: fix kmem_cache_create failed when sysfs node not destroyed 2021-07-25 14:35:14 +02:00
net net/802/garp: fix memleak in garp_request_join() 2021-07-31 08:19:38 +02:00
samples samples/bpf: Fix the error return code of xdp_redirect's main() 2021-07-14 16:53:30 +02:00
scripts kbuild: mkcompile_h: consider timestamp if KBUILD_BUILD_TIMESTAMP is set 2021-07-25 14:35:12 +02:00
security smackfs: restrict bytes count in smk_set_cipso() 2021-07-19 08:53:18 +02:00
sound ALSA: hdmi: Expose all pins on MSI MS-7C94 board 2021-07-28 13:30:59 +02:00
tools tools: Allow proper CC/CXX/... override with LLVM=1 in Makefile.include 2021-07-31 08:19:37 +02:00
usr
virt KVM: mmio: Fix use-after-free Read in kvm_vm_ioctl_unregister_coalesced_mmio 2021-07-20 16:10:40 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile Linux 5.4.136 2021-07-28 13:31:02 +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.