Re: [ATM] who 'owns' the skb created by drivers/atm?

From: chas williams (chas@locutus.cmf.nrl.navy.mil)
Date: Sun Feb 23 2003 - 20:55:25 EST


In message <20030223001550.I2791@almesberger.net>,Werner Almesberger writes:
>The "cb must be in virgin state" rule is indeed news to me. But
>maybe the rule has always been there, and nobody really noticed :-)

its particularly a problem (on the ia64 anyway) in ip_options_echo().
optlen (in skb_inet_parm) winds up with values >>40 and it overwrites
the stack. it looks like the ip stack wants to process the options
block once and tuck it away in skb_inet_parm.
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