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fix extremely rare but dangerous race condition in robust mutexes
[musl]
/
src
/
unistd
/
setgid.c
diff --git
a/src/unistd/setgid.c
b/src/unistd/setgid.c
index
e98a298
..
bae4616
100644
(file)
--- a/
src/unistd/setgid.c
+++ b/
src/unistd/setgid.c
@@
-4,6
+4,5
@@
int setgid(gid_t gid)
{
- if (libc.rsyscall) return libc.rsyscall(__NR_setgid, gid, 0, 0, 0, 0, 0);
- return syscall(SYS_setgid, gid);
+ return __setxid(SYS_setgid, gid, 0, 0);
}