commit 70c783d: [Minor] Fix oob read

[Vsevolod Stakhov]

Author: Vsevolod Stakhov
Date: 2021-03-25 10:23:37 +0000
URL: https://github.com/rspamd/rspamd/commit/70c783d20f97f3283154a339e6514e7f51d9a3b6 (HEAD -> master)

[Minor] Fix oob read

---
 src/libmime/message.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libmime/message.c b/src/libmime/message.c
index 99b84e385..8a9601fa7 100644
--- a/src/libmime/message.c
+++ b/src/libmime/message.c
@@ -467,7 +467,7 @@ rspamd_strip_newlines_parse (struct rspamd_task *task,
 				if (G_UNLIKELY (*c) == ' ') {
 					part->spaces ++;
 
-					if (*(c - 1) == ' ') {
+					if (c > begin && *(c - 1) == ' ') {
 						part->double_spaces ++;
 					}
 				}