Kirk McKusick
b3fe5d9322
Fix off-by-one error in fsck_ffs(8) chkrange() block-number check.
...
On an amd64-CURRENT machine with an i-node that refers to a block
number that is one too large will cause a core dump, due to writing
beyond the end of blockmap[] and corrupting the next heap block,
which happens to contain a struct inoinfo in inphash[]. Note that
valgrind catches the blockmap[] access.
Reported by: Robert Morris
PR: 271289
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
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