[tor-bugs] #15901 [Tor]: apparent memory corruption -- very difficult to isolate
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Mon Aug 24 00:09:48 UTC 2015
#15901: apparent memory corruption -- very difficult to isolate
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Reporter: starlight | Owner:
Type: defect | Status: new
Priority: critical | Milestone: Tor: 0.2.7.x-final
Component: Tor | Version: Tor: 0.2.6.10
Resolution: | Keywords:
Actual Points: | Parent ID:
Points: |
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Comment (by someone_else):
mprotect operates on memory pages (4096 bytes). You need to align the
memory allocation for the consensus document at a page boundary and pad
the allocation to completely include the last page (round up the
allocation to a multiple of 4096).
This may change the memory layout enough so that something else gets hit
by the bug.
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/15901#comment:23>
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