hfs/hfsplus: fix u32 overflow in check_and_correct_requested_length (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.13 % · percentile 3 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Analyzed
Description
In the Linux kernel, the following vulnerability has been resolved: hfs/hfsplus: fix u32 overflow in check_and_correct_requested_length check_and_correct_requested_length() compares (off + len) against node_size using u32 arithmetic. When the caller passes a large len value (e.g. from an underflowed subtraction in hfs_brec_remove()), off + len can wrap past 2^32 and produce a small result, causing the bounds check to pass when it should fail. For example, with off=14 and len=0xFFFFFFF2 (underflowed from data_off - keyoffset - size in hfs_brec_remove), off + len wraps to 6, which is less than a typical node_size of 512, so the check passes and the subsequent memmove reads ~4GB past the node buffer. Fix this by widening the addition to u64 before comparing against node_size. This prevents the u32 wrap while keeping the logic straightforward.
Weaknesses (CWE)
- CWE-191 — Integer Underflow (Wrap or Wraparound)
References
- https://git.kernel.org/stable/c/c8dd112173c02adf539fe2ad34a45f5e0068780d
- https://git.kernel.org/stable/c/fc9d1447ca3cdc78d2e4ace1ce1f3a7c77ca08b1
- https://git.kernel.org/stable/c/671c3fcc2ad31c1311ea6414382a2d95104ae1b9
- https://git.kernel.org/stable/c/b6a481642ea1977be2f84dc08c5affd742c177e7
- https://git.kernel.org/stable/c/7399c3baee7bb622a92f0b895cd4d3009a693f2b
- https://git.kernel.org/stable/c/607217f7ad419b53926f71e3f75001813bbc08ad
- https://git.kernel.org/stable/c/c25d3c931a63e762fcaa9cb125b901c53b62403f
- https://git.kernel.org/stable/c/966cb76fb2857a4242cab6ea2ea17acf818a3da7
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 | Linux |
| 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 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
European references
- ENISA EUVD · EUVD-2026-48905
- GCVE · GCVE-0-2026-64361
CERT-FR advisories
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1333 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1286 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1252 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1229 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1203 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1162 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1031 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0982 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0981 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.4.297 < 5.5cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.10.241 < 5.10.261cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.15.190 < 5.15.212cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.1.149 < 6.1.178cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.6.103 < 6.6.145cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.12.43 < 6.12.97cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.15.11 < 6.16cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.16.2 < 6.18.40cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.19 < 7.1.4
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 67ecc81f6492275c9c54280532f558483c99c90e < c8dd112173c02adf539fe2ad34a45f5e0068780d ; affected a1a60e79502279f996e55052f50cc14919020475 < fc9d1447ca3cdc78d2e4ace1ce1f3a7c77ca08b1 ; affected fe2891a9c43ab87d1a210d61e6438ca6936e2f62 < 671c3fcc2ad31c1311ea6414382a2d95104ae1b9 ; affected 384a66b89f9540a9a8cb0f48807697dfabaece4c < b6a481642ea1977be2f84dc08c5affd742c177e7 ; affected efc095b35b23297e419c2ab4fc1ed1a8f0781a29 < 7399c3baee7bb622a92f0b895cd4d3009a693f2b ; affected a431930c9bac518bf99d6b1da526a7f37ddee8d8 < 607217f7ad419b53926f71e3f75001813bbc08ad |
| Linux · Linux | affected 6.17 ; unaffected 0 < 6.17 ; unaffected 5.10.261 ≤ 5.10.* ; unaffected 5.15.212 ≤ 5.15.* ; unaffected 6.1.178 ≤ 6.1.* ; unaffected 6.6.145 ≤ 6.6.* |
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 |