CVE-2025-68794
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
iomap: adjust read range correctly for non-block-aligned positions
In the Linux kernel, the following vulnerability has been resolved: iomap: adjust read range correctly for non-block-aligned positions iomap_adjust_read_range() assumes that the position and length passed in are block-aligned. This is not always the case however, as shown in the syzbot generated case for erofs. This causes too many bytes to be skipped for uptodate blocks, which results in returning the incorrect position and length to read in. If all the blocks are uptodate, this underflows length and returns a position beyond the folio. Fix the calculation to also take into account the block offset when calculating how many bytes can be skipped for uptodate blocks.
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) |
|---|---|---|---|---|---|
| 9dc55f1389f9569acf9659e58dd836a9c70df217 | affected | git | ce20f49ac9194cf81a77f01d1c316d7c17ae753c | Unavailable | None listed |
| 9dc55f1389f9569acf9659e58dd836a9c70df217 | affected | git | 275b37a1e5c2c8abd313e8075f6aec9a349f291b | Unavailable | None listed |
| 9dc55f1389f9569acf9659e58dd836a9c70df217 | affected | git | b8c9f25fd84328c5fcc4f70c6d1e8f1d4787eaac | Unavailable | None listed |
| 9dc55f1389f9569acf9659e58dd836a9c70df217 | affected | git | 82b60ffbb532d919959702768dca04c3c0500ae5 | Unavailable | None listed |
| 9dc55f1389f9569acf9659e58dd836a9c70df217 | affected | git | 12053695c8ef5410e8cc6c9ed4c0db9cd9c82b3e | Unavailable | None listed |
| 9dc55f1389f9569acf9659e58dd836a9c70df217 | affected | git | 142194fb21afe964d2d194cab1fc357cbf87e899 | Unavailable | None listed |
| 9dc55f1389f9569acf9659e58dd836a9c70df217 | affected | git | 7aa6bc3e8766990824f66ca76c19596ce10daf3e | 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 |
| 5.10.267 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.218 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.185 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.120 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.64 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.3 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19 | unaffected | original_commit_for_fix | Unavailable | * | None listed |