Djam/u-boot
1
0
Fork 0
mirror of https://github.com/u-boot/u-boot.git synced 2025-04-25 06:46:00 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

efi_loader: check parameters EFI_FILE_PROTOCOL.GetInfo()

Browse source 
Check the parameters of EFI_FILE_PROTOCOL.GetInfo() to avoid possible NULL
dereference.

Check the buffer size for EFI_FILE_SYSTEM_INFO.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
Heinrich Schuchardt 2019-09-08 10:45:31 +02:00
parent 632834ce6d
commit 11335c0439
1 changed files with 6 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
lib/efi_loader/efi_file.c
View file

@ -596,6 +596,12 @@ static efi_status_t EFIAPI efi_file_getinfo(struct efi_file_handle *file,
EFI_ENTRY("%p, %pUl, %p, %p", file, info_type, buffer_size, buffer); EFI_ENTRY("%p, %pUl, %p, %p", file, info_type, buffer_size, buffer);
if (!file || !info_type || !buffer_size ||
(*buffer_size && !buffer)) {
ret = EFI_INVALID_PARAMETER;
goto error;
}
if (!guidcmp(info_type, &efi_file_info_guid)) { if (!guidcmp(info_type, &efi_file_info_guid)) {
struct efi_file_info *info = buffer; struct efi_file_info *info = buffer;
char *filename = basename(fh); char *filename = basename(fh);