[U-Boot] [PATCH 1/1] efi_loader: HII protocols: fix new_package_list()
Heinrich Schuchardt
xypron.glpk at gmx.de
Thu Feb 28 22:20:34 UTC 2019
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 <xypron.glpk at gmx.de>
---
@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
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