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author | Rich Felker <dalias@aerifal.cx> | 2015-11-02 16:37:51 -0500 |
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committer | Rich Felker <dalias@aerifal.cx> | 2015-11-02 16:37:51 -0500 |
commit | fda365a53074f97f3213caefe70ea13297acecb2 (patch) | |
tree | 2506ac8bfc363f5671a2be0c16a0a69c23167fdf /tools | |
parent | f9ecb6bfa1dc9f93a10dad97a158e6b8334c586c (diff) | |
download | musl-fda365a53074f97f3213caefe70ea13297acecb2.tar.gz musl-fda365a53074f97f3213caefe70ea13297acecb2.tar.bz2 musl-fda365a53074f97f3213caefe70ea13297acecb2.tar.xz musl-fda365a53074f97f3213caefe70ea13297acecb2.zip |
fix mremap memory synchronization and use of variadic argument
since mremap with the MREMAP_FIXED flag is an operation that unmaps
existing mappings, it needs to use the vm lock mechanism to ensure
that any in-progress synchronization operations using vm identities
from before the call have finished.
also, the variadic argument was erroneously being read even if the
MREMAP_FIXED flag was not passed. in practice this didn't break
anything, but it's UB and in theory LTO could turn it into a hard
error.
Diffstat (limited to 'tools')
0 files changed, 0 insertions, 0 deletions