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hub / github.com/cloud-hypervisor/cloud-hypervisor / test_huge_header

Function test_huge_header

block/src/qcow/mod.rs:2399–2420  ·  view source on GitHub ↗

Test case found by clusterfuzz to allocate excessive memory.

()

Source from the content-addressed store, hash-verified

2397
2398 // Test case found by clusterfuzz to allocate excessive memory.
2399 fn test_huge_header() -> Vec<u8> {
2400 vec![
2401 0x51, 0x46, 0x49, 0xfb, // magic
2402 0x00, 0x00, 0x00, 0x03, // version
2403 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // backing file offset
2404 0x00, 0x00, 0x00, 0x00, // backing file size
2405 0x00, 0x00, 0x00, 0x09, // cluster_bits
2406 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, // size
2407 0x00, 0x00, 0x00, 0x00, // crypt method
2408 0x00, 0x00, 0x01, 0x00, // L1 size
2409 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, // L1 table offset
2410 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, // refcount table offset
2411 0x00, 0x00, 0x00, 0x03, // refcount table clusters
2412 0x00, 0x00, 0x00, 0x00, // nb snapshots
2413 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, // snapshots offset
2414 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // incompatible_features
2415 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // compatible_features
2416 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // autoclear_features
2417 0x00, 0x00, 0x00, 0x04, // refcount_order
2418 0x00, 0x00, 0x00, 0x68, // header_length
2419 ]
2420 }
2421
2422 fn basic_file(header: &[u8]) -> RawFile {
2423 let mut disk_file: RawFile = RawFile::new(TempFile::new().unwrap().into_file(), false);

Callers 3

test_header_huge_fileFunction · 0.85
test_header_1_tb_fileFunction · 0.85

Calls

no outgoing calls

Tested by

no test coverage detected