From 1b1b72dc405fd162fefe0f71bec4746b0ebf5b36 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Arsen=20Arsenovi=C4=87?= Date: Tue, 21 Feb 2023 19:22:46 +0100 Subject: [PATCH] fixdep: avoid underflow when end of entry doesn't coincide with EOF MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Arsen Arsenović --- scripts/basic/fixdep.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/scripts/basic/fixdep.c b/scripts/basic/fixdep.c index 426b4888b..66be73aad 100644 --- a/scripts/basic/fixdep.c +++ b/scripts/basic/fixdep.c @@ -338,6 +338,11 @@ void parse_dep_file(void *map, size_t len) do p--; while (!isalnum((unsigned char)*p)); p++; } + if (p < m) { + /* we've consumed the last filename of this list + already. */ + break; + } memcpy(s, m, p-m); s[p-m] = 0; if (strrcmp(s, "include/autoconf.h") && strrcmp(s, "arch/um/include/uml-config.h") && -- 2.39.2