From 8a0bf1683fcb5631469d7dbdbe3224167b213628 Mon Sep 17 00:00:00 2001 From: Daniel Axtens Date: Fri, 25 Jun 2021 02:19:05 +1000 Subject: [PATCH] kern/file: Do not leak device_name on error in grub_file_open() If we have an error in grub_file_open() before we free device_name, we will leak it. Free device_name in the error path and null out the pointer in the good path once we free it there. Signed-off-by: Daniel Axtens Reviewed-by: Daniel Kiper --- grub-core/kern/file.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/grub-core/kern/file.c b/grub-core/kern/file.c index 5845445..ffdcaba 100644 --- a/grub-core/kern/file.c +++ b/grub-core/kern/file.c @@ -79,6 +79,7 @@ grub_file_open (const char *name, enum grub_file_type type) device = grub_device_open (device_name); grub_free (device_name); + device_name = NULL; if (! device) goto fail; @@ -131,6 +132,7 @@ grub_file_open (const char *name, enum grub_file_type type) return file; fail: + grub_free (device_name); if (device) grub_device_close (device); -- 2.34.1