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-rw-r--r--scripts/kconfig/lexer.l3
1 files changed, 2 insertions, 1 deletions
diff --git a/scripts/kconfig/lexer.l b/scripts/kconfig/lexer.l
index c9df1c8b9824..6354c905b006 100644
--- a/scripts/kconfig/lexer.l
+++ b/scripts/kconfig/lexer.l
@@ -378,7 +378,8 @@ FILE *zconf_fopen(const char *name)
if (!f && name != NULL && name[0] != '/') {
env = getenv(SRCTREE);
if (env) {
- sprintf(fullname, "%s/%s", env, name);
+ snprintf(fullname, sizeof(fullname),
+ "%s/%s", env, name);
f = fopen(fullname, "r");
}
}