[PATCH] init: Do not segfault on big GIT_TEMPLATE_DIR environment variable
From: Frank Lichtenheld <hidden>
Date: 2016-06-15 22:46:37
Subsystem:
the rest · Maintainer:
Linus Torvalds
From: Frank Lichtenheld <redacted> Signed-off-by: Frank Lichtenheld <redacted> --- builtin-init-db.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/builtin-init-db.c b/builtin-init-db.c
index 4e02b33..d1fa12a 100644
--- a/builtin-init-db.c
+++ b/builtin-init-db.c@@ -122,8 +122,10 @@ static void copy_templates(const char *template_dir) template_dir = system_path(DEFAULT_GIT_TEMPLATE_DIR); if (!template_dir[0]) return; + template_len = strlen(template_dir); + if (PATH_MAX <= (template_len+strlen("/config"))) + die("insanely long template path %s", template_dir); strcpy(template_path, template_dir); - template_len = strlen(template_path); if (template_path[template_len-1] != '/') { template_path[template_len++] = '/'; template_path[template_len] = 0;
--
1.6.2.1