Re: CVE Request: kernel information leak in fs/compat_ioctl.c VIDEO_SET_SPU_PALETTE

[P J P <ppandit () redhat com>]

  Hi,
+-- On Fri, 5 Apr 2013, Marcus Meissner wrote --+
| Should also get a CVE.
| https://github.com/torvalds/linux/commit/12176503366885edd542389eed3aaf94be163fdb

Comments around get_user() macro say that in case of an error, destination 
variable @x is set to zero.

 -> https://github.com/torvalds/linux/blob/master/arch/x86/include/asm/uaccess.h#L134

Just to confirm, is it the same macro that is called from fs/compat_ioctl.c ?

Thank you.
--
Prasad J Pandit / Red Hat Security Response Team
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