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authorStefano Babic <sbabic@denx.de>2010-10-20 08:51:45 +0200
committerWolfgang Denk <wd@denx.de>2010-10-20 09:14:38 +0200
commit11c8dd36edcc82564a19dbd0103302df66d66db0 (patch)
treeb2e6607a5d313a9185d8c1f961b4a9f50a1c6a38 /arch/powerpc
parent70994c79caec0b0304aa87d9695c79f1862ea340 (diff)
downloadu-boot-linaro-stable-11c8dd36edcc82564a19dbd0103302df66d66db0.tar.gz
FAT: buffer overflow with FAT12/16
Last commit 3831530dcb7b71329c272ccd6181f8038b6a6dd0a was intended "explicitly specify FAT12/16 root directory parsing buffer size, instead of relying on cluster size". Howver, the underlying function requires the size of the buffer in blocks, not in bytes, and instead of passing a double sector size a request for 1024 blocks is sent. This generates a buffer overflow with overwriting of other structure (in the case seen, USB structures were overwritten). Signed-off-by: Stefano Babic <sbabic@denx.de> CC: Mikhail Zolotaryov <lebon@lebon.org.ua>
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