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Diffstat (limited to 'usr.bin/sudo/env.c')
-rw-r--r--usr.bin/sudo/env.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/usr.bin/sudo/env.c b/usr.bin/sudo/env.c
index 48aa221753a..0308d169981 100644
--- a/usr.bin/sudo/env.c
+++ b/usr.bin/sudo/env.c
@@ -250,8 +250,8 @@ insert_env(str, dupcheck)
char **nep;
size_t varlen;
- /* Make sure there is room for the new entry. */
- if (env_len + 1 > env_size) {
+ /* Make sure there is room for the new entry plus a NULL. */
+ if (env_len + 2 > env_size) {
env_size += 128;
new_environ = erealloc3(new_environ, env_size, sizeof(char *));
}