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In flat tree reading, check for (negative) string offsets which underrun

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the input blob. (Patch from Michael Ellerman).
This commit is contained in:
David Gibson 2005-08-19 16:11:11 +10:00
parent 7f6d12b3a1
commit 4ddf7c020c
1 changed files with 1 additions and 1 deletions
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2
flattree.c
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@ -547,7 +547,7 @@ static char *flat_read_stringtable(struct inbuf *inb, int offset)
p = inb->base + offset;
while (1) {
if (p >= inb->limit)
if (p >= inb->limit || p < inb->base)
die("String offset %d overruns string table\n",
offset);