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-rw-r--r--usr.bin/su/su.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/usr.bin/su/su.c b/usr.bin/su/su.c
index 76f76b61e64d..73d012a3460e 100644
--- a/usr.bin/su/su.c
+++ b/usr.bin/su/su.c
@@ -173,6 +173,8 @@ main(int argc, char *argv[])
#ifdef USE_BSM_AUDIT
const char *aerr;
au_id_t auid;
+
+ signal(SIGSYS, SIG_IGN);
#endif
shell = class = cleanenv = NULL;