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mkfs: avoid out of bounds access to sb in wsect

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Russ Cox 2011-01-02 17:59:57 -05:00
parent 2ea6c764c3
commit e92fd6142d
1 changed files with 3 additions and 1 deletions
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4
mkfs.c
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@ -90,7 +90,9 @@ main(int argc, char *argv[])
for(i = 0; i < nblocks + usedblocks; i++)
wsect(i, zeroes);
wsect(1, &sb);
memset(buf, 0, sizeof(buf));
memmove(buf, &sb, sizeof(sb));
wsect(1, buf);
rootino = ialloc(T_DIR);
assert(rootino == ROOTINO);