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-rw-r--r--src/mail/ngx_mail_parse.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/mail/ngx_mail_parse.c b/src/mail/ngx_mail_parse.c
index eb16d5b4f..7de6c19a1 100644
--- a/src/mail/ngx_mail_parse.c
+++ b/src/mail/ngx_mail_parse.c
@@ -842,6 +842,10 @@ ngx_mail_auth_parse(ngx_mail_session_t *s, ngx_connection_t *c)
}
#endif
+ if (s->args.nelts == 0) {
+ return NGX_MAIL_PARSE_INVALID_COMMAND;
+ }
+
arg = s->args.elts;
if (arg[0].len == 5) {