musl - musl - an implementation of the standard library for Linux-based systems

diff --git a/src/signal/sigaction.c b/src/signal/sigaction.c
index 79989500..ac9a3ac2 100644
--- a/src/signal/sigaction.c
+++ b/src/signal/sigaction.c

@@ -53,9 +53,9 @@ int __libc_sigaction(int sig, const struct sigaction *restrict sa, struct sigact

ksa.handler = sa->sa_handler;

ksa.flags = sa->sa_flags | SA_RESTORER;

ksa.restorer = (sa->sa_flags & SA_SIGINFO) ? __restore_rt : __restore;

- memcpy(&ksa.mask, &sa->sa_mask, sizeof ksa.mask);

+ memcpy(&ksa.mask, &sa->sa_mask, _NSIG/8);

}

- int r = __syscall(SYS_rt_sigaction, sig, sa?&ksa:0, old?&ksa_old:0, sizeof ksa.mask);

+ int r = __syscall(SYS_rt_sigaction, sig, sa?&ksa:0, old?&ksa_old:0, _NSIG/8);

if (sig == SIGABRT && sa && sa->sa_handler != SIG_DFL) {

UNLOCK(__abort_lock);

__restore_sigs(&set);

@@ -63,7 +63,7 @@ int __libc_sigaction(int sig, const struct sigaction *restrict sa, struct sigact

if (old && !r) {

old->sa_handler = ksa_old.handler;

old->sa_flags = ksa_old.flags;

- memcpy(&old->sa_mask, &ksa_old.mask, sizeof ksa_old.mask);

+ memcpy(&old->sa_mask, &ksa_old.mask, _NSIG/8);

}

return __syscall_ret(r);

}