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(parent: 9660700) | patch
libxc: Better range check in xc_dom_alloc_segment
authorIan Jackson <ian.jackson@eu.citrix.com>
Fri, 14 Jun 2013 15:39:38 +0000 (16:39 +0100)
committerIan Jackson <Ian.Jackson@eu.citrix.com>
Fri, 14 Jun 2013 15:39:38 +0000 (16:39 +0100)
commit82cb4113b6ace16de192021de20f6cbd991e478f
treea1e66bdc9463e4517fb3df25bdd5dfb23760d8a3tree | snapshot
parent966070058d02cce9684e30073b61d6465e4b351ccommit | diff
libxc: Better range check in xc_dom_alloc_segment

If seg->pfn is too large, the arithmetic in the range check might
overflow, defeating the range check.

This is part of the fix to a security issue, XSA-55.

Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
tools/libxc/xc_dom_core.c diff | blob | history
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