Re: [PATCH 1/5] [NETLINK]: Fix use after free in netlink_recvmsg

From: Marcel Holtmann <[email protected]>
Date: Thu, 03 May 2007 14:27:16 +0200

> Hi Dave,
> 
> > > When the user passes in MSG_TRUNC the skb is used after getting freed.
> > > 
> > > Signed-off-by: Patrick McHardy <[email protected]>
> > > Signed-off-by: David Howells <[email protected]>
> > 
> > Ugh, good catch, applied :-)
> 
> it seems this could be easily exploited and is at least a local DoS. It
> should be a candidate for the -stable kernel.

The MSG_TRUNC change is in 2.6.22 GIT only.

You might want to check such things before making such statements. :-/

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---

• References:
  • [PATCH 1/5] [NETLINK]: Fix use after free in netlink_recvmsg
    • From: David Howells <[email protected]>
  • Re: [PATCH 1/5] [NETLINK]: Fix use after free in netlink_recvmsg
    • From: David Miller <[email protected]>
  • Re: [PATCH 1/5] [NETLINK]: Fix use after free in netlink_recvmsg
    • From: Marcel Holtmann <[email protected]>

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