bpf: Preserve pointer state for commuted arithmetic (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.13 % · percentile 3 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: bpf: Preserve pointer state for commuted arithmetic When scalar += pointer is handled in adjust_ptr_min_max_vals(), the destination register inherits the pointer state from the source pointer. Copying only selected fields is fragile because pointer provenance is tracked by several bpf_reg_state fields. Use the caller's temporary offset register to preserve the scalar operand while replacing the destination with the full pointer state. This preserves the frame number for PTR_TO_STACK registers and keeps parent identity fields consistent.
References
- https://git.kernel.org/stable/c/86b203aadc2930e0a4f9c6277b5b80ff3664c472
- https://git.kernel.org/stable/c/8109c25e0c41f5f19a1c2380bb49c991a877494e
- https://git.kernel.org/stable/c/d1959028190a7649b926f5867a58de5fe221b23c
- https://git.kernel.org/stable/c/8cb23101a3fcc7432b451ea3d0f14a90711f4acf
- https://git.kernel.org/stable/c/29c239f8dbec5ab33a61796724d189bddee6cd4b
- https://git.kernel.org/stable/c/db6382ed3361bdd8129572a3423956cba1dae829
- https://git.kernel.org/stable/c/eaffa1495e4fe6330aeff9f323ea3d48b01f118a
- https://git.kernel.org/stable/c/a4c6f804b44c5c790269b25e0e61cf4e9f117c86
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-2026-64407
- GCVE · GCVE-0-2026-74720
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-1232 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1163 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1090 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 < 86b203aadc2930e0a4f9c6277b5b80ff3664c472 ; affected f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 < 8109c25e0c41f5f19a1c2380bb49c991a877494e ; affected f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 < d1959028190a7649b926f5867a58de5fe221b23c ; affected f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 < 8cb23101a3fcc7432b451ea3d0f14a90711f4acf ; affected f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 < 29c239f8dbec5ab33a61796724d189bddee6cd4b ; affected f4d7e40a5b7157e1329c3c5b10f60d8289fc2941 < db6382ed3361bdd8129572a3423956cba1dae829 |
| Linux · Linux | affected 4.16 ; unaffected 0 < 4.16 ; unaffected 5.10.265 ≤ 5.10.* ; unaffected 5.15.216 ≤ 5.15.* ; unaffected 6.1.183 ≤ 6.1.* ; unaffected 6.6.152 ≤ 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 |