CVE-2025-40293
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: Don't overflow during division for dirty tracking
In the Linux kernel, the following vulnerability has been resolved: iommufd: Don't overflow during division for dirty tracking If pgshift is 63 then BITS_PER_TYPE(*bitmap->bitmap) * pgsize will overflow to 0 and this triggers divide by 0. In this case the index should just be 0, so reorganize things to divide by shift and avoid hitting any overflows.
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) |
|---|---|---|---|---|---|
| 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1 | affected | git | 07105e61882ff4a7d58db63cc5f9e90c6c60506c | Unavailable | None listed |
| 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1 | affected | git | 4c8a4f1d34eced168cc0b3a3dfe7b6dcc2090f69 | Unavailable | None listed |
| 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1 | affected | git | de7f2c67ceb1941b05b04ac35458a03e93cc57b1 | Unavailable | None listed |
| 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1 | affected | git | dbf316fc90aa954dcd5440817f4b944627ed63e0 | Unavailable | None listed |
| 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1 | affected | git | cb30dfa75d55eced379a42fd67bd5fb7ec38555e | 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) |
|---|---|---|---|---|---|
| 6.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.1 | Unavailable | None listed |
| 6.1.159 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.117 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.58 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.17.8 | unaffected | semver | Unavailable | 6.17.* | None listed |
| 6.18 | unaffected | original_commit_for_fix | Unavailable | * | None listed |