can: softing: fw_parse(): validate firmware record spans (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.12 % · percentile 2 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: can: softing: fw_parse(): validate firmware record spans fw_parse() reads a fixed record header, a firmware-provided payload, and a trailing checksum without knowing the end of the firmware blob. A truncated record can therefore make those reads exceed the blob. The same record also supplies addresses and lengths for writes into DPRAM. The generic loader uses wrap-prone mixed signed arithmetic for its bounds check, while the application loader does not bound the staging copy at all. Pass the firmware end to the parser and validate the full source record. Use a signed wide offset for generic DPRAM records and validate the application staging span against the mapped DPRAM before copying.
References
- https://git.kernel.org/stable/c/f6d9a6a9512430b395a1940d7b216394fd02d30b
- https://git.kernel.org/stable/c/84c850b08fc0d671c245144b619683129b55690a
- https://git.kernel.org/stable/c/d0eac0ea7cf493e787fd7b4a556e43ef03cb4b50
- https://git.kernel.org/stable/c/ae588e5b9cc268de1aabf30f939f0870717ca164
- https://git.kernel.org/stable/c/ad331e26fd213a19fee0de18cdacd67b7ff5b478
- https://git.kernel.org/stable/c/2ee477e541a6d5e434d6a4041c6b677ab42e1d82
- https://git.kernel.org/stable/c/808ed899dcf8bdef66894fda5eb7ee4bb0eb8dc1
- https://git.kernel.org/stable/c/856d6cb04e5407523566b075841dcd6423757d1c
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-2026-67441
- GCVE · GCVE-0-2026-80706
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
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 03fd3cf5a179da12e6bee5e9d74b648aff68dc4c < f6d9a6a9512430b395a1940d7b216394fd02d30b ; affected 03fd3cf5a179da12e6bee5e9d74b648aff68dc4c < 84c850b08fc0d671c245144b619683129b55690a ; affected 03fd3cf5a179da12e6bee5e9d74b648aff68dc4c < d0eac0ea7cf493e787fd7b4a556e43ef03cb4b50 ; affected 03fd3cf5a179da12e6bee5e9d74b648aff68dc4c < ae588e5b9cc268de1aabf30f939f0870717ca164 ; affected 03fd3cf5a179da12e6bee5e9d74b648aff68dc4c < ad331e26fd213a19fee0de18cdacd67b7ff5b478 ; affected 03fd3cf5a179da12e6bee5e9d74b648aff68dc4c < 2ee477e541a6d5e434d6a4041c6b677ab42e1d82 |
| Linux · Linux | affected 2.6.38 ; unaffected 0 < 2.6.38 ; unaffected 5.10.265 ≤ 5.10.* ; unaffected 5.15.216 ≤ 5.15.* ; unaffected 6.1.183 ≤ 6.1.* ; unaffected 6.6.151 ≤ 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 |