CVE-2026-68176
tracing: Fix mmiotrace possible NULL dereferencing of hiter->dev
Not available
At a glance
- Source
- NVD
- EPSS
- EPSS 0.21 % · percentile 11 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: tracing: Fix mmiotrace possible NULL dereferencing of hiter->dev If the mmio_pipe_open() fails to find a PCI device, the hiter->dev will be assigned to NULL. The mmiotrace read() function dereferences the hiter->dev if hiter exists. Change the test of the read to not only check hiter being NULL, but also the hiter->dev before dereferencing it.
References
- https://git.kernel.org/stable/c/c06470320f8156306986a831010cdc9f9f87cb50
- https://git.kernel.org/stable/c/0d5aaf91a3d05f7f993401af27872a5fc0f26edc
- https://git.kernel.org/stable/c/3635a9e8b453e658a49b39d025f35bbc6e58d0e2
- https://git.kernel.org/stable/c/faaf95135184208ee3ac6f33175c8d1800669dfc
- https://git.kernel.org/stable/c/201a01102c529772168181190cb084471082cf5c
- https://git.kernel.org/stable/c/8464427e1c177809a9488a97dfa2807d9dcf323b
- https://git.kernel.org/stable/c/724cd84b0546c07806840fa658714488553d13a2
- https://git.kernel.org/stable/c/144f29e85702234b23d2a62abf723e6a17eb5427
European references
- ENISA EUVD · EUVD-2026-55277
- GCVE · GCVE-0-2026-68176
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-1163 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1069 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected f984b51e0779a6dd30feedc41404013ca54e5d05 < c06470320f8156306986a831010cdc9f9f87cb50 ; affected f984b51e0779a6dd30feedc41404013ca54e5d05 < 0d5aaf91a3d05f7f993401af27872a5fc0f26edc ; affected f984b51e0779a6dd30feedc41404013ca54e5d05 < 3635a9e8b453e658a49b39d025f35bbc6e58d0e2 ; affected f984b51e0779a6dd30feedc41404013ca54e5d05 < faaf95135184208ee3ac6f33175c8d1800669dfc ; affected f984b51e0779a6dd30feedc41404013ca54e5d05 < 201a01102c529772168181190cb084471082cf5c ; affected f984b51e0779a6dd30feedc41404013ca54e5d05 < 8464427e1c177809a9488a97dfa2807d9dcf323b |
| Linux · Linux | affected 2.6.27 ; unaffected 0 < 2.6.27 ; unaffected 5.10.265 ≤ 5.10.* ; unaffected 5.15.216 ≤ 5.15.* ; unaffected 6.1.183 ≤ 6.1.* ; unaffected 6.6.148 ≤ 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 |