[B.A.T.M.A.N.] [PATCH] batman-adv-kernelland: Fix memory corruption bug
scottraynel at gmail.com
Fri Dec 5 10:40:30 UTC 2008
On 5/12/2008, at 12:35 AM, Simon Wunderlich wrote:
> Hey Scott,
> thank you very much for the fix! Can you confirm if this bug is
> to https://dev.open-mesh.net/batman/ticket/86 ?
> This bug has very likely been caused by a memory corruption, but i
> couldnÂ´t find where. (i have not experienced any kernel panics by
> however ...).
It is quite possible that they are related. The slab error states that
a memory allocation was overwritten - the same problem as my patch
fixed. However, I can't confirm whether it is the same memory
allocation or a different one. The stack trace I got specifically
mentioned the kfree() in send_own_packet(), whereas this stack trace
Is that bug easily reproducible? It will be a couple of days before I
can try to look at it.
Also, the stack trace is confusing as it appears to indicate a kfree()
within hardif_min_mtu(), which I can't find :)
I'll try to do some stress testing of the module with the slab
debugger turned on for a while and see what happens.
WAND Network Research Group
Department of Computer Science
University of Waikato
More information about the B.A.T.M.A.N