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Filename Latest commit message Latest commit date
Xiyu Yang bd68177f26 ipv6: Fix nexthop refcnt leak when creating ipv6 route info
[ Upstream commit 706ec919164622ff5ce822065472d0f30a9e9dd2 ]

ip6_route_info_create() invokes nexthop_get(), which increases the
refcount of the "nh".

When ip6_route_info_create() returns, local variable "nh" becomes
invalid, so the refcount should be decreased to keep refcount balanced.

The reference counting issue happens in one exception handling path of
ip6_route_info_create(). When nexthops can not be used with source
routing, the function forgets to decrease the refcnt increased by
nexthop_get(), causing a refcnt leak.

Fix this issue by pulling up the error source routing handling when
nexthops can not be used with source routing.

Fixes: f88d8ea67f ("ipv6: Plumb support for nexthop object in a fib6_info")
Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-11 15:33:39 +02:00
arch Revert "powerpc/kasan: Fix shadow pages allocation failure" 2020-08-11 15:33:39 +02:00
block
certs
crypto
Documentation
drivers PCI: tegra: Revert tegra124 raw_violation_fixup 2020-08-11 15:33:39 +02:00
fs xattr: break delegations in {set,remove}xattr 2020-08-11 15:33:39 +02:00
include ipv6: fix memory leaks on IPV6_ADDRFORM path 2020-08-11 15:33:39 +02:00
init
ipc
kernel
lib
LICENSES
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net ipv6: Fix nexthop refcnt leak when creating ipv6 route info 2020-08-11 15:33:39 +02:00
samples
scripts scripts: add dummy report mode to add_namespace.cocci 2020-08-11 15:33:35 +02:00
security
sound ALSA: hda: fix NULL pointer dereference during suspend 2020-08-11 15:33:37 +02:00
tools tools lib traceevent: Fix memory leak in process_dynamic_array_len 2020-08-11 15:33:38 +02:00
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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.