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| author | Rich Felker <dalias@aerifal.cx> | 2014-08-22 14:05:10 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2014-08-22 14:05:10 -0400 |
| commit | a6293285e930dbdb0eff47e29b513ca22537b1a2 (patch) | |
| tree | 66a43238db0d04793fd682bf79f5d23745659b20 /src/internal/pthread_impl.h | |
| parent | 321f4fa9067185aa6bb47403dfba46e8cfe917d3 (diff) | |
| download | musl-a6293285e930dbdb0eff47e29b513ca22537b1a2.tar.gz | |
fix use of uninitialized memory with application-provided thread stacks
the subsequent code in pthread_create and the code which copies TLS
initialization images to the new thread's TLS space assume that the
memory provided to them is zero-initialized, which is true when it's
obtained by pthread_create using mmap. however, when the caller
provides a stack using pthread_attr_setstack, pthread_create cannot
make any assumptions about the contents. simply zero-filling the
relevant memory in this case is the simplest and safest fix.
Diffstat (limited to 'src/internal/pthread_impl.h')
0 files changed, 0 insertions, 0 deletions