From 29510dd81e3a5e96151afdb0702863cbfd640766 Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Fri, 22 Jun 2018 18:58:59 -0700
Subject: [PATCH] check for size before using strncpy

ensures that size is never execeding the string length
that execPath can hold

Fixes
error: '__builtin___strncpy_chk' specified size between 18446744071562067968 and 18446744073709551615 exceeds maximum object size 9223372036854775807 [-Werror=stringop-overflow=]

Upstream-Status: Pending

Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
 src/imm/immnd/immnd_proc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/imm/immnd/immnd_proc.c b/src/imm/immnd/immnd_proc.c
index 015932a..c8f115e 100644
--- a/src/imm/immnd/immnd_proc.c
+++ b/src/imm/immnd/immnd_proc.c
@@ -1902,6 +1902,10 @@ static int immnd_forkPbe(IMMND_CB *cb)
 		LOG_ER("Pathname too long: %u max is 1023", newLen);
 		return -1;
 	}
+	if (execDirLen > 1023 || execDirLen < 0) {
+		LOG_ER("Execdir name too long: %u max is 1023", execDirLen);
+		return -1;
+	}
 
 	strncpy(execPath, cb->mProgName, execDirLen);
 	execPath[execDirLen] = 0;