CVE-2026-45991
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
udf: fix partition descriptor append bookkeeping
In the Linux kernel, the following vulnerability has been resolved: udf: fix partition descriptor append bookkeeping Mounting a crafted UDF image with repeated partition descriptors can trigger a heap out-of-bounds write in part_descs_loc[]. handle_partition_descriptor() deduplicates entries by partition number, but appended slots never record partnum. As a result duplicate Partition Descriptors are appended repeatedly and num_part_descs keeps growing. Once the table is full, the growth path still sizes the allocation from partnum even though inserts are indexed by num_part_descs. If partnum is already aligned to PART_DESC_ALLOC_STEP, ALIGN(partnum, step) can keep the old capacity and the next append writes past the end of the table. Store partnum in the appended slot and size growth from the next append count so deduplication and capacity tracking follow the same model.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| ee4af50ca94f58afc3532662779b9cf80bbe27c8 | affected | git | ad3c0c4400686f6f37b382aaa48fac2b9aefccbe | Unavailable | None listed |
| ee4af50ca94f58afc3532662779b9cf80bbe27c8 | affected | git | 68013a9bd4c01acd42073715f00e1a1992f089ee | Unavailable | None listed |
| ee4af50ca94f58afc3532662779b9cf80bbe27c8 | affected | git | e8474cfbac9ada2cdaa4eaedec22aadfa0f58559 | Unavailable | None listed |
| ee4af50ca94f58afc3532662779b9cf80bbe27c8 | affected | git | 058b451b1039f056d1362c4fec2229e522366ab0 | Unavailable | None listed |
| ee4af50ca94f58afc3532662779b9cf80bbe27c8 | affected | git | b5597bb83fc37b5b5da74a4453fa920b932cf39a | Unavailable | None listed |
| ee4af50ca94f58afc3532662779b9cf80bbe27c8 | affected | git | 73df74544b55241dca5dd788523e6f5f10bd2b9b | Unavailable | None listed |
| ee4af50ca94f58afc3532662779b9cf80bbe27c8 | affected | git | 08fa5d818e5bf53c7ca234d88ba334f32004e9b6 | Unavailable | None listed |
| ee4af50ca94f58afc3532662779b9cf80bbe27c8 | affected | git | 08841b06fa64d8edbd1a21ca6e613420c90cc4b8 | Unavailable | None listed |
| 7f401f160a9c7a1ff84ba3cb9b2f636d1f5cfb6b | affected | git | Unavailable | Unavailable | None listed |
| 4.18.7 | affected | semver | 4.19 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.19 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.19 | Unavailable | None listed |
| 5.10.259 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.210 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.176 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.140 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.88 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.57 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.0.4 | unaffected | semver | Unavailable | 7.0.* | None listed |
| 7.1 | unaffected | original_commit_for_fix | Unavailable | * | None listed |