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Stop invoking undefined behaviour by using tor_free() on an unaligned pointer

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... in get_interface_addresses_ioctl().

This pointer alignment issue exists on x86_64 macOS, but is unlikely to exist
elsewhere. (i386 macOS only requires 4-byte alignment, and other OSs have
8-byte ints.)

Fixes bug 24733; not in any released version of tor.
This commit is contained in:
teor
2017-12-24 22:36:52 +11:00
committed by Nick Mathewson
parent f5d89fab25
commit 54899b404c
2 changed files with 11 additions and 1 deletions
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o Minor bugfixes (code correctness):
- Stop invoking undefined behaviour by using tor_free() on an unaligned
pointer in get_interface_addresses_ioctl(). This pointer alignment issue
exists on x86_64 macOS, but is unlikely to exist elsewhere.
Fixes bug 24733; bugfix on 0.3.0.0-alpha-dev;
not in any released version of tor.