CVE-2025-38688
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)
iommufd: Prevent ALIGN() overflow
In the Linux kernel, the following vulnerability has been resolved: iommufd: Prevent ALIGN() overflow When allocating IOVA the candidate range gets aligned to the target alignment. If the range is close to ULONG_MAX then the ALIGN() can wrap resulting in a corrupted iova. Open code the ALIGN() using get_add_overflow() to prevent this. This simplifies the checks as we don't need to check for length earlier either. Consolidate the two copies of this code under a single helper. This bug would allow userspace to create a mapping that overlaps with some other mapping or a reserved range.
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) |
|---|---|---|---|---|---|
| 51fe6141f0f64ae0bbc096a41a07572273e8c0ef | affected | git | d19b817540c0abe84854a64ee9ee34cecc3bbeef | Unavailable | None listed |
| 51fe6141f0f64ae0bbc096a41a07572273e8c0ef | affected | git | ebb6021560b94649bec6b8faba6fe0dca2218e81 | Unavailable | None listed |
| 51fe6141f0f64ae0bbc096a41a07572273e8c0ef | affected | git | e42a046bb41dcdde4f766a17d8211842007ed537 | Unavailable | None listed |
| 51fe6141f0f64ae0bbc096a41a07572273e8c0ef | affected | git | 79fad1917802c28de51a479318a056a6fbe3e2f2 | Unavailable | None listed |
| 51fe6141f0f64ae0bbc096a41a07572273e8c0ef | affected | git | b42497e3c0e74db061eafad41c0cd7243c46436b | 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) |
|---|---|---|---|---|---|
| 6.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.2 | Unavailable | None listed |
| 6.6.103 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.43 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.15.11 | unaffected | semver | Unavailable | 6.15.* | None listed |
| 6.16.2 | unaffected | semver | Unavailable | 6.16.* | None listed |
| 6.17 | unaffected | original_commit_for_fix | Unavailable | * | None listed |