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authorMichael Matz <matz@suse.de>2012-04-05 10:48:14 +0200
committerAndreas Jaeger <aj@suse.de>2012-04-05 10:50:09 +0200
commite80d6f94e19d17b91e3cd3ada7193cc88f621feb (patch)
treef519a13feef74d70dfade10c595b72d3113add5f /signal
parent349fa79f5527f78d60c78eb1fbb2dfb56846018c (diff)
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Fix size parameter comparisions.
[BZ #13592]
There are several signed compares of the size argument, whereas
it really is unsigned.  Depending on situations e.g. a "memset(ptr, 0,
-1)" segfault (but for the wrong reasons, because jumping into nirvana)
or succeeds even.

In normal use this is harmless, as a size with signbit set indicates
more than half the address space which on x86_64 is impossible to
allocate, but as the size is used to index some jump tables this
potentially could have other unwanted side effects.
Diffstat (limited to 'signal')
0 files changed, 0 insertions, 0 deletions