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| author | xiaolangde <xiaolangde@gmail.com> | 2020-08-03 21:08:25 +0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-08-03 15:08:25 +0200 |
| commit | 3f25b281e7f00b16c3166faa4ef0258990944f93 (patch) | |
| tree | 101d9ac36f672acd23d1825f2d6c075cc04e7cef | |
| parent | 75e11add78f02e7d4007427c14812bb3ee7677c2 (diff) | |
| download | VeraCrypt-3f25b281e7f00b16c3166faa4ef0258990944f93.tar.gz VeraCrypt-3f25b281e7f00b16c3166faa4ef0258990944f93.zip | |
Windows Bootloader: pass correct compressed data size to decompressor. Because the ds segment register is modified when setting up the decompressor segment, loader length should be read from the cs segment. (#666)
| -rw-r--r-- | src/Boot/Windows/BootSector.asm | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/Boot/Windows/BootSector.asm b/src/Boot/Windows/BootSector.asm index 351b2c67..0d2bbdca 100644 --- a/src/Boot/Windows/BootSector.asm +++ b/src/Boot/Windows/BootSector.asm @@ -139,7 +139,7 @@ checksum_ok: push dx ; Decompress boot loader - mov cx, word ptr [start + TC_BOOT_SECTOR_LOADER_LENGTH_OFFSET] + mov cx, word ptr cs:[start + TC_BOOT_SECTOR_LOADER_LENGTH_OFFSET] sub cx, TC_GZIP_HEADER_SIZE push cx ; Compressed data size push TC_BOOT_LOADER_COMPRESSED_BUFFER_OFFSET + TC_GZIP_HEADER_SIZE ; Compressed data |