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authorGabe Black <gabeblack@google.com>2013-03-06 04:46:00 -0800
committerRonald G. Minnich <rminnich@gmail.com>2013-03-13 23:42:09 +0100
commit00e5da6f25483f5d29aefadfff56a11dd0f3c97c (patch)
treeeff3b2371dcd437bd18cf66819b9852ac108478f /payloads/libpayload/liblzma
parent903f8e03307de8a689244eec5bf9aface73850b1 (diff)
downloadcoreboot-00e5da6f25483f5d29aefadfff56a11dd0f3c97c.tar.xz
libpayload: Don't do unaligned accesses during LZMA decompression
Use memcpy to access a uint32_t that's inherently unaligned due to the layout of the LZMA header format. Built and booted on Daisy and saw a data abort go away. Built and booted into developer mode on Link and verified that bitmaps were decompressed/displayed correctly. Change-Id: Id3ae746c04d23bcb0345cb71797bfa219479cc8f Signed-off-by: Gabe Black <gabeblack@google.com> Reviewed-on: http://review.coreboot.org/2670 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'payloads/libpayload/liblzma')
-rw-r--r--payloads/libpayload/liblzma/lzma.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/payloads/libpayload/liblzma/lzma.c b/payloads/libpayload/liblzma/lzma.c
index 73c499a826..0b97213070 100644
--- a/payloads/libpayload/liblzma/lzma.c
+++ b/payloads/libpayload/liblzma/lzma.c
@@ -26,7 +26,7 @@ unsigned long ulzma(const unsigned char * src, unsigned char * dst)
unsigned char scratchpad[15980];
memcpy(properties, src, LZMA_PROPERTIES_SIZE);
- outSize = *(UInt32 *)(src + LZMA_PROPERTIES_SIZE);
+ memcpy(&outSize, src + LZMA_PROPERTIES_SIZE, sizeof(outSize));
if (LzmaDecodeProperties(&state.Properties, properties, LZMA_PROPERTIES_SIZE) != LZMA_RESULT_OK) {
printf("lzma: Incorrect stream properties.\n");
return 0;