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| author | Rich Felker <dalias@aerifal.cx> | 2017-10-13 23:00:34 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2017-10-13 23:00:34 -0400 |
| commit | c1e27367a9b26b9baac0f37a12349fc36567c8b6 (patch) | |
| tree | 88accade820f5d320b504b517b043b951fec583e /src/time/clock.c | |
| parent | 907476925fca05f24ebca5fcdc21f1e58ba7b313 (diff) | |
| download | musl-c1e27367a9b26b9baac0f37a12349fc36567c8b6.tar.gz musl-c1e27367a9b26b9baac0f37a12349fc36567c8b6.tar.bz2 musl-c1e27367a9b26b9baac0f37a12349fc36567c8b6.tar.xz musl-c1e27367a9b26b9baac0f37a12349fc36567c8b6.zip | |
fix read-after-free type error in pthread_detach
calling __unlock on t->exitlock is not valid because __unlock reads
the waiters count after making the atomic store that could allow
pthread_exit to continue and unmap the thread's stack and the object t
points to. for now, inline the __unlock logic with an unconditional
futex wake operation so that the waiters count is not needed.
once __lock/__unlock have been made safe for self-synchronized
destruction, we could switch back to using them.
Diffstat (limited to 'src/time/clock.c')
0 files changed, 0 insertions, 0 deletions