lguest: be paranoid about guest playing with device descriptors.

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We can't trust the values in the device descriptor table once the
guest has booted, so keep local copies.  They could set them to
strange values then cause us to segv (they're 8 bit values, so they
can't make our pointers go too wild).

This becomes more important with the following patches which read them.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

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Rusty Russell 2009-06-12 22:26:58 -06:00

parent 8ebf975608

commit 713b15b378

1 changed files with 17 additions and 10 deletions

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Documentation/lguest/lguest.c

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