lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Wed, 22 May 2013 05:28:47 -0700
From:	Eric Dumazet <>
Cc:	Roman Gushchin <>,
	Dipankar Sarma <>,,,,
	"David S. Miller" <>,
	Alexey Kuznetsov <>,
	James Morris <>,
	Hideaki YOSHIFUJI <>,
	Patrick McHardy <>
Subject: Re: [PATCH v2] rcu: fix a race in hlist_nulls_for_each_entry_rcu

On Wed, 2013-05-22 at 02:58 -0700, Paul E. McKenney wrote:

> Now that I am more awake...
> The RCU list macros assume that the list header is either statically
> allocated (in which case no ACCESS_ONCE() or whatever is needed) or
> that the caller did whatever was necessary to protect the list header,
> whether that be holding the right lock, using rcu_dereference() when
> traversing the pointer to the list header, or whatever.

Not sure what you mean, we do hold rcu_read_lock() here.

But when we jump back to begin, we do not do
"rcu_read_unlock()/rcu_read_lock()" pair.

To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to
More majordomo info at

Powered by blists - more mailing lists