Henry Hrvoje Tonkovac fe8bd6e62c block: fix VHDX region table overlap detection ...

The region table overlap check in RegionInfo::new only rejected a new
region that strictly engulfed an existing one. Identical, fully
contained, and partially overlapping regions passed undetected, so a
malformed VHDX with overlapping region entries was wrongly accepted.

Per [MS-VHDX] all region objects MUST be non-overlapping, so such an
image should be rejected. Replace the faulty predicate with a correct
half-open interval overlap test, extracted into a small pure helper
(ranges_overlap).

Add a unit test for the predicate and an integration test that feeds a
crafted region table with two overlapping entries through the real
RegionInfo::new, confirming it is now rejected with RegionOverlap.

Related to #8009 (broader VHDX overlap validation).

Signed-off-by: Henry Hrvoje Tonkovac <htonkovac@gmail.com>
Assisted-by: Claude:Opus-4.8

2026-06-29 21:51:12 +00:00

..

src

block: fix VHDX region table overlap detection

2026-06-29 21:51:12 +00:00

Cargo.toml

performance-metrics: Switch to QcowDisk

2026-06-08 13:19:32 +00:00