Re: [btrfs] is vulnerable to a hash-DoS attack

2012-12-14 Thread Pascal Junod 
Le 14.12.12 15:29, Chris Mason a écrit :

 Ok, I think what was happening on Pascal's machine is that we are
 returning -EOVERFLOW and sometimes aborting the transaction (which turns
 the FS readonly).
 
 I have that fixed here.  Rename I'm reodering the rename code a little
 bit to also handle the case where there are collisions on rename.

Please tell me if I can help by explaining more about my setup.

Pascal

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[btrfs] is vulnerable to a hash-DoS attack

2012-12-13 Thread Pascal Junod 
Hello folk,

The btrfs file system, part of the linux kernel, is vulnerable to a
trivial hash-DoS attack. More details can be found here:

http://crypto.junod.info/2012/12/13/hash-dos-and-btrfs/

Enjoy!

Pascal Junod
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http://crypto.junod.info
@cryptopathe
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