proxmox-mirrors/efi-boot-shim
1
0
Fork 0
mirror of https://git.proxmox.com/git/efi-boot-shim synced 2025-08-14 17:23:58 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Fix buffer overrun / damaged options passed to second_stage.

Browse Source 
start is a UCS-2 character pointer and loader_len is a number of bytes.
Adjust loader_len to count characters before adding to the start pointer.
This commit is contained in:
John S. Gruber 2017-04-24 14:44:59 -04:00 committed by Peter Jones
parent 5c3bf32908
commit f481019157
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
shim.c
View File

@ -2531,7 +2531,7 @@ EFI_STATUS set_second_stage (EFI_HANDLE image_handle)
loader_str[loader_len/2-1] = L'\0';
second_stage = loader_str;
load_options = remaining_size ? start + loader_len : NULL;
load_options = remaining_size ? start + (loader_len/2) : NULL;
load_options_size = remaining_size;
}