From: Seung-Woo Kim <sw0312.kim@samsung.com>
Date: Tue, 13 Apr 2021 11:23:14 +0000 (+0900)
Subject: libkmod: fix an overflow with wrong modules.builtin.modinfo
X-Git-Tag: v29~5
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=1cab02ecf6ee2a0aa34f3615dfd99c59f7e04e90;p=platform%2Fupstream%2Fkmod.git

libkmod: fix an overflow with wrong modules.builtin.modinfo

Fix a possbile overflow with exact PATH_MAX length modname
in wrong modules.builtin.modinfo.

Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
---

diff --git a/libkmod/libkmod-builtin.c b/libkmod/libkmod-builtin.c
index fc9a376..a75a542 100644
--- a/libkmod/libkmod-builtin.c
+++ b/libkmod/libkmod-builtin.c
@@ -246,7 +246,7 @@ bool kmod_builtin_iter_get_modname(struct kmod_builtin_iter *iter,
 
 	len = dot - line;
 
-	if (len > PATH_MAX) {
+	if (len >= PATH_MAX) {
 		sv_errno = ENAMETOOLONG;
 		goto fail;
 	}