diff options
Diffstat (limited to 'kexec/arch/i386/x86-linux-setup.c')
| -rw-r--r-- | kexec/arch/i386/x86-linux-setup.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/kexec/arch/i386/x86-linux-setup.c b/kexec/arch/i386/x86-linux-setup.c index aa2605f..e04e45d 100644 --- a/kexec/arch/i386/x86-linux-setup.c +++ b/kexec/arch/i386/x86-linux-setup.c @@ -687,17 +687,25 @@ static void setup_efi_info(struct kexec_info *info, ret = get_bootparam(&real_mode->efi_info, offset, 32); if (ret) return; + if (((struct efi_info *)real_mode->efi_info)->efi_memmap_size == 0) + /* zero filled efi_info */ + goto out; desc_version = get_efi_mem_desc_version(real_mode); if (desc_version != 1) { fprintf(stderr, "efi memory descriptor version %d is not supported!\n", desc_version); - memset(&real_mode->efi_info, 0, 32); - return; + goto out; } ret = setup_efi_data(info, real_mode); if (ret) - memset(&real_mode->efi_info, 0, 32); + goto out; + + return; + +out: + memset(&real_mode->efi_info, 0, 32); + return; } void setup_linux_system_parameters(struct kexec_info *info, |