diff options
Diffstat (limited to 'drivers/firmware')
| -rw-r--r-- | drivers/firmware/efi/libstub/randomalloc.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/firmware/efi/libstub/randomalloc.c b/drivers/firmware/efi/libstub/randomalloc.c index 5a732018be36..fd80b2f3233a 100644 --- a/drivers/firmware/efi/libstub/randomalloc.c +++ b/drivers/firmware/efi/libstub/randomalloc.c @@ -75,6 +75,10 @@ efi_status_t efi_random_alloc(unsigned long size, if (align < EFI_ALLOC_ALIGN) align = EFI_ALLOC_ALIGN; + /* Avoid address 0x0, as it can be mistaken for NULL */ + if (alloc_min == 0) + alloc_min = align; + size = round_up(size, EFI_ALLOC_ALIGN); /* count the suitable slots in each memory map entry */ |