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Filename Latest commit message Latest commit date
Liu Jian 5624f26a35 net: ipv4: fix one memleak in __inet_del_ifa() 
[ Upstream commit ac28b1ec6135649b5d78b028e47264cb3ebca5ea ]

I got the below warning when do fuzzing test:
unregister_netdevice: waiting for bond0 to become free. Usage count = 2

It can be repoduced via:

ip link add bond0 type bond
sysctl -w net.ipv4.conf.bond0.promote_secondaries=1
ip addr add 4.117.174.103/0 scope 0x40 dev bond0
ip addr add 192.168.100.111/255.255.255.254 scope 0 dev bond0
ip addr add 0.0.0.4/0 scope 0x40 secondary dev bond0
ip addr del 4.117.174.103/0 scope 0x40 dev bond0
ip link delete bond0 type bond

In this reproduction test case, an incorrect 'last_prim' is found in
__inet_del_ifa(), as a result, the secondary address(0.0.0.4/0 scope 0x40)
is lost. The memory of the secondary address is leaked and the reference of
in_device and net_device is leaked.

Fix this problem:
Look for 'last_prim' starting at location of the deleted IP and inserting
the promoted IP into the location of 'last_prim'.

Fixes: 0ff60a4567 ("[IPV4]: Fix secondary IP addresses after promotion")
Signed-off-by: Liu Jian <liujian56@huawei.com>
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-09-23 11:00:01 +02:00
arch ARM: dts: BCM5301X: Extend RAM to full 256MB for Linksys EA6500 V2 2023-09-23 11:00:01 +02:00
block block/partition: fix signedness issue for Amiga partitions 2023-07-27 08:37:29 +02:00
certs
crypto X.509: if signature is unsupported skip validation 2023-09-23 10:59:55 +02:00
Documentation Documentation/sysctl: document page_lock_unfairness 2023-08-30 16:27:27 +02:00
drivers clk: imx8mm: Move 1443X/1416X PLL clock structure to common place 2023-09-23 11:00:01 +02:00
fs btrfs: use the correct superblock to compare fsid in btrfs_validate_super 2023-09-23 11:00:00 +02:00
include usb: typec: bus: verify partner exists in typec_altmode_attention 2023-09-23 11:00:01 +02:00
init x86/mm: Initialize text poking earlier 2023-08-08 19:56:36 +02:00
ipc ipc/sem: Fix dangling sem_array access in semtimedop race 2022-12-08 11:23:06 +01:00
kernel tracing: Fix race issue between cpu buffer write and swap 2023-09-23 10:59:52 +02:00
lib idr: fix param name in idr_alloc_cyclic() doc 2023-09-23 10:59:59 +02:00
LICENSES
mm tmpfs: verify {g,u}id mount options correctly 2023-09-23 10:59:40 +02:00
net net: ipv4: fix one memleak in __inet_del_ifa() 2023-09-23 11:00:01 +02:00
samples samples/bpf: Fix buffer overflow in tcp_basertt 2023-07-27 08:37:07 +02:00
scripts kconfig: fix possible buffer overflow 2023-09-23 10:59:57 +02:00
security smackfs: Prevent underflow in smk_set_cipso() 2023-09-23 10:59:46 +02:00
sound ALSA: pcm: Fix missing fixup call in compat hw_refine ioctl 2023-09-23 10:59:54 +02:00
tools perf tools: Handle old data in PERF_RECORD_ATTR 2023-09-23 11:00:00 +02:00
usr
virt KVM: Destroy target device if coalesced MMIO unregistration fails 2023-03-11 16:44:01 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS iio: stx104: Move to addac subdirectory 2023-08-30 16:27:12 +02:00
Makefile Linux 5.4.256 2023-09-02 09:19:19 +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.