startblock must be taken into account in order not to read past the end of the
FAT.
Signed-off-by: Benoît Thébaudeau <benoit.thebaud...@advansee.com>
Cc: Wolfgang Denk <w...@denx.de>
---
.../fs/fat/fat.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git u-boot-66714b1.orig/fs/fat/fat.c u-boot-66714b1/fs/fat/fat.c
index bc46cc5..f6fd457 100644
--- u-boot-66714b1.orig/fs/fat/fat.c
+++ u-boot-66714b1/fs/fat/fat.c
@@ -207,8 +207,8 @@ static __u32 get_fatent (fsdata *mydata, __u32 entry)
__u32 fatlength = mydata->fatlength;
__u32 startblock = bufnum * FATBUFBLOCKS;
- if (getsize > fatlength)
- getsize = fatlength;
+ if (startblock + getsize > fatlength)
+ getsize = fatlength - startblock;
fatlength *= mydata->sect_size; /* We want it in bytes now */
startblock += mydata->fat_sect; /* Offset from start of disk */
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