Re: [slab poison overwritten] Re: [GIT] Networking
From: Eric Dumazet
Date: Mon Mar 21 2011 - 14:09:16 EST
Le lundi 21 mars 2011 Ã 18:39 +0100, Ingo Molnar a Ãcrit :
> here's the same but with kallsyms enabled.
> [ 9.585627] initcall 0xffffffff81d5b806 returned 0 after 0 usecs
> [ 9.588960] calling 0xffffffff81d5b9da @ 1
> [ 9.592303] IPVS: Creating netns size=1272 id=0
> [ 9.595646] IPVS: __ip_vs_control_init(): alloc_percpu.
> [ 9.602298] IPVS: cannot register namespace.
> [ 9.605627] IPVS: can't setup control
It seems IPVS is busted in case of memory allocation error in
IPVS deinits its "struct netns_ipvs" space, but something (in IPVS) uses
it after free.
__ip_vs_init() seems to be called before ip_vs_init() completes
correctly. We then keep in net->ipvs a pointer to some freed memory.
Commit 14e405461e664b7 did some changes in this area
Simon, any idea ?
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