Branch: refs/heads/master
Home: https://github.com/seccomp/libseccomp
Commit: 80a987d6f8d0152def07fa90ace6417d56eea741
https://github.com/seccomp/libseccomp/commit/80a987d6f8d0152def07fa90ace6417d56eea741
Author: Paul Moore <[email protected]>
Date: 2019-02-21 (Thu, 21 Feb 2019)
Changed paths:
M doc/man/man3/seccomp_rule_add.3
M include/seccomp.h.in
A tests/48-sim-32b_args.c
A tests/48-sim-32b_args.py
A tests/48-sim-32b_args.tests
M tests/Makefile.am
Log Message:
-----------
api: provide 32-bit friendly argument comparison macros
We have a longstanding issue with 32-bit to 64-bit sign extension
inadvertently resulting in bogus syscall argument extensions. This
patch introduces a new set of argument comparison macros which
limit the argument values to 32-bit values so that we don't run into
problems with sign extension.
We use the macro overloading proposed by Roman at
https://kecher.net/overloading-macros/ to retain the feature of these
macros being usable as static initializers.
Thanks to @jdstrand on GitHub for reporting the problem.
Signed-off-by: Paul Moore <[email protected]>
Signed-off-by: Michael Weiser <[email protected]>
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