From: Dmitry V. Levin <ldv@altlinux.org>
Date: Mon, 16 May 2016 21:35:07 +0000 (+0000)
Subject: Fix printing of invalid d_type in getdents syscall
X-Git-Tag: v4.12~152
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=7fb984e27ec57690cf7663160f3c0694693e9f69;p=strace

Fix printing of invalid d_type in getdents syscall

* dirent.c (SYS_FUNC(getdents)): Treat d_type as unsigned char to avoid
potential sign-extension bug when printing invalid d_type.
---

diff --git a/dirent.c b/dirent.c
index de5a163d..7d882ae2 100644
--- a/dirent.c
+++ b/dirent.c
@@ -76,7 +76,7 @@ SYS_FUNC(readdir)
 SYS_FUNC(getdents)
 {
 	unsigned int i, len, dents = 0;
-	char *buf;
+	unsigned char *buf;
 
 	if (entering(tcp)) {
 		printfd(tcp, tcp->u_arg[0]);