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vvfat: fat_chksum(): fix access above array bounds

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Signed-off-by: Loïc Minier <loic.minier@linaro.org>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Loïc Minier 2010-08-22 00:47:23 +02:00 committed by Kevin Wolf
parent cdbae85169
commit 2aa326be0d
1 changed files with 1 additions and 1 deletions
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block/vvfat.c
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@ -512,7 +512,7 @@ static inline uint8_t fat_chksum(const direntry_t* entry)
for(i=0;i<11;i++) { for(i=0;i<11;i++) {
unsigned char c; unsigned char c;
c = (i <= 8) ? entry->name[i] : entry->extension[i-8]; c = (i < 8) ? entry->name[i] : entry->extension[i-8];
chksum=(((chksum&0xfe)>>1)|((chksum&0x01)?0x80:0)) + c; chksum=(((chksum&0xfe)>>1)|((chksum&0x01)?0x80:0)) + c;
} }