iommufd/iova_bitmap: Fix shift-out-of-bounds in iova_bitmap_offset_to_index() (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.19 % · percentile 9 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: iommufd/iova_bitmap: Fix shift-out-of-bounds in iova_bitmap_offset_to_index() Resolve a UBSAN shift-out-of-bounds issue in iova_bitmap_offset_to_index() where shifting the constant "1" (of type int) by bitmap->mapped.pgshift (an unsigned long value) could result in undefined behavior. The constant "1" defaults to a 32-bit "int", and when "pgshift" exceeds 31 (e.g., pgshift = 63) the shift operation overflows, as the result cannot be represented in a 32-bit type. To resolve this, the constant is updated to "1UL", promoting it to an unsigned long type to match the operand's type.
Weaknesses (CWE)
- CWE-787 — Out-of-bounds Write
References
- https://git.kernel.org/stable/c/44d9c94b7a3f29a3e07c4753603a35e9b28842a3
- https://git.kernel.org/stable/c/38ac76fc06bc6826a3e4b12a98efbe98432380a9
- https://git.kernel.org/stable/c/d5d33f01b86af44b23eea61ee309e4ef22c0cdfe
- https://git.kernel.org/stable/c/b1f8453b8ff1ab79a03820ef608256c499769cb6
- https://git.kernel.org/stable/c/e24c1551059268b37f6f40639883eafb281b8b9c
- https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2025-5222
- GCVE · GCVE-0-2025-21724
CERT-FR advisories
- CERTFR-2026-AVI-1298 — Multiples vulnérabilités dans les produits Siemens · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0107 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0082 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
- CERTFR-2025-AVI-1057 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0969 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0758 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0625 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0509 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0492 — Multiples vulnérabilités dans les produits Siemens · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0277 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0234 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0212 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.1 < 6.1.129cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.2 < 6.6.76cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.7 < 6.12.13cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.13 < 6.13.2
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1 < 44d9c94b7a3f29a3e07c4753603a35e9b28842a3 ; affected 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1 < 38ac76fc06bc6826a3e4b12a98efbe98432380a9 ; affected 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1 < d5d33f01b86af44b23eea61ee309e4ef22c0cdfe ; affected 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1 < b1f8453b8ff1ab79a03820ef608256c499769cb6 ; affected 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1 < e24c1551059268b37f6f40639883eafb281b8b9c |
| Linux · Linux | affected 6.1 ; unaffected 0 < 6.1 ; unaffected 6.1.129 ≤ 6.1.* ; unaffected 6.6.76 ≤ 6.6.* ; unaffected 6.12.13 ≤ 6.12.* ; unaffected 6.13.2 ≤ 6.13.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |