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fix missing synchronization in calls from dynamic linker to global ctors
[musl]
/
src
/
ldso
/
dynlink.c
diff --git
a/src/ldso/dynlink.c
b/src/ldso/dynlink.c
index
d197473
..
ac4b669
100644
(file)
--- a/
src/ldso/dynlink.c
+++ b/
src/ldso/dynlink.c
@@
-692,6
+692,10
@@
static void do_init_fini(struct dso *p)
}
if (dyn[0] & (1<<DT_INIT))
((void (*)(void))(p->base + dyn[DT_INIT]))();
+ if (!need_locking && libc.threads_minus_1) {
+ need_locking = 1;
+ pthread_mutex_lock(&init_fini_lock);
+ }
}
if (need_locking) pthread_mutex_unlock(&init_fini_lock);
}