CVE-2026-98282
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)
powerpc/iommu: Fix the overflow validation in iommu_tce_check_ioba
In the Linux kernel, the following vulnerability has been resolved: powerpc/iommu: Fix the overflow validation in iommu_tce_check_ioba The commit b1af23d836f8 ("KVM: PPC: iommu: Unify TCE checking") unified IOBA parameter checking across KVM and VFIO into iommu_tce_check_ioba(). While doing so, the passed in argument npages is ignored and constant value '1' is used leaving out a possible overflow as the callers can legitimately be using npages > 1 for H_STUFF_TCE or H_PUT_TCE_INDIRECT cases. Fix this by accounting for 'npages', checking for arithmetic overflow, and verifying that the entire requested range (ioba - offset + npages) does not exceed the table capacity 'size'.
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) |
|---|---|---|---|---|---|
| b1af23d836f811137d504d14d4cbdd01929dec34 | affected | git | 98d8dcc4ebd10523507d4478e148809a7771a213 | Unavailable | None listed |
| b1af23d836f811137d504d14d4cbdd01929dec34 | affected | git | 9fd9c9bbb05417f468a11fb6d145d7ff61f4a868 | Unavailable | None listed |
| b1af23d836f811137d504d14d4cbdd01929dec34 | affected | git | 3776bf56e06980e8a12c8c0565d9e6ac44965f03 | Unavailable | None listed |
| b1af23d836f811137d504d14d4cbdd01929dec34 | affected | git | d6a1779129d936bc1fbab80181165da544eab736 | Unavailable | None listed |
| b1af23d836f811137d504d14d4cbdd01929dec34 | affected | git | d48ceb6e1a6915c7bac4f902554a1047365cdff2 | Unavailable | None listed |
| b1af23d836f811137d504d14d4cbdd01929dec34 | affected | git | 0543813753ef5cfbd6fa96694f7acf783fa01af7 | Unavailable | None listed |
| b1af23d836f811137d504d14d4cbdd01929dec34 | affected | git | 314091243159f8e3749bc719bb129f423f72fd86 | Unavailable | None listed |
| b1af23d836f811137d504d14d4cbdd01929dec34 | affected | git | 0b271f7d7f5ed45bc498a03ce0aa9cfd8402fc71 | 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) |
|---|---|---|---|---|---|
| 4.12 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.12 | Unavailable | None listed |
| 5.10.271 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.222 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.189 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.158 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.112 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.54 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.8 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |