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BUG FOUND: Re: Potentially serious problem with kernel-headers...



Well, I grovelled through the 4M of patches twixt 2.0.33 and 2.0.34.
I found the problem killing cdparanoia.

The hd_driveid struct in linux/include/linux/hdreg.h got bigger.
Calling the HDIO_GET_IDENTITY ioctl() (a published interface to the
ide subsystem) will cause a 2.0.33 or before application to trash its
data segment/stack under 2.0.34.  If the application is built against
2.0.34 (and more importantly the 2.0.34 headers), the ioctl is safe
under 2.0.33.

Sigh.  I wonder how many more of these there are (I saw lots of struct
changes in various vfs stuff...)

Monty


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