From mboxrd@z Thu Jan 1 00:00:00 1970 From: Heinrich Schuchardt Date: Thu, 28 Feb 2019 23:20:34 +0100 Subject: [U-Boot] [PATCH 1/1] efi_loader: HII protocols: fix new_package_list() Message-ID: <20190228222034.18644-1-xypron.glpk@gmx.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de In new_package_list() we call new_packagelist() to create a new package list. Next we try to add the packages which fails for form packages. Due to this error we call free_packagelist(). Now in free_packagelist() list_del() is called for an uninitialized field hii->link. This leads to changing random memory addresses. To solve the problem move the initialization of hii->link to new_packagelist(). Signed-off-by: Heinrich Schuchardt --- @Takahiro: Please, review the patch. --- lib/efi_loader/efi_hii.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/efi_loader/efi_hii.c b/lib/efi_loader/efi_hii.c index d63d2d84184..0ed4b196333 100644 --- a/lib/efi_loader/efi_hii.c +++ b/lib/efi_loader/efi_hii.c @@ -343,6 +343,7 @@ static struct efi_hii_packagelist *new_packagelist(void) struct efi_hii_packagelist *hii; hii = malloc(sizeof(*hii)); + list_add_tail(&hii->link, &efi_package_lists); hii->max_string_id = 0; INIT_LIST_HEAD(&hii->string_tables); INIT_LIST_HEAD(&hii->guid_list); @@ -465,7 +466,6 @@ new_package_list(const struct efi_hii_database_protocol *this, } hii->driver_handle = driver_handle; - list_add_tail(&hii->link, &efi_package_lists); *handle = hii; return EFI_EXIT(EFI_SUCCESS); -- 2.20.1