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-rw-r--r--sys/kern/kern_sig.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/kern/kern_sig.c b/sys/kern/kern_sig.c
index c5b09dc94c33..067de64f808e 100644
--- a/sys/kern/kern_sig.c
+++ b/sys/kern/kern_sig.c
@@ -630,7 +630,7 @@ sigonstack(size_t sp)
if ((td->td_pflags & TDP_ALTSTACK) == 0)
return (0);
#if defined(COMPAT_43)
- if (td->td_sigstk.ss_size == 0)
+ if (SV_PROC_FLAG(td->td_proc, SV_AOUT) && td->td_sigstk.ss_size == 0)
return ((td->td_sigstk.ss_flags & SS_ONSTACK) != 0);
#endif
return (sp >= (size_t)td->td_sigstk.ss_sp &&