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Florian Westphal d3e6e285ff net: ipv4: fix rcu lockdep splat due to wrong annotation
syzbot triggered following splat when strict netlink
validation is enabled:

net/ipv4/devinet.c:1766 suspicious rcu_dereference_check() usage!

This occurs because we hold RTNL mutex, but no rcu read lock.
The second call site holds both, so just switch to the _rtnl variant.

Reported-by: syzbot+bad6e32808a3a97b1515@syzkaller.appspotmail.com
Fixes: 2638eb8b50 ("net: ipv4: provide __rcu annotation for ifa_list")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-04 14:24:10 -07:00
arch
block
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Documentation
drivers netdevsim: implement fake flash updating with notifications 2019-06-04 14:21:40 -07:00
fs
include devlink: allow driver to update progress of flash update 2019-06-04 14:21:40 -07:00
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net net: ipv4: fix rcu lockdep splat due to wrong annotation 2019-06-04 14:24:10 -07:00
samples
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tools selftests: add basic netdevsim devlink flash testing 2019-06-04 14:21:40 -07:00
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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.