serial: 8250_mid: Fix NULL function pointer dereference on DNV/ICX-D/SNR platforms (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.18 % · percentile 7 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: serial: 8250_mid: Fix NULL function pointer dereference on DNV/ICX-D/SNR platforms Commit b1b4efea05a5 ("serial: 8250_mid: Disable DMA for selected platforms") replaced the dnv_board setup and exit callbacks with PTR_IF(false, ...), which evaluates to NULL. However, the three call sites in mid8250_probe() and mid8250_remove() unconditionally dereference these function pointers without NULL checks, causing a NULL pointer dereference (kernel oops) on any Denverton (DNV), Ice Lake Xeon D (ICX-D/CDF), or Snowridge (SNR) platform. Fix this by adding the missing NULL checks before calling the setup and exit callbacks.
References
- https://git.kernel.org/stable/c/bdaa8871b53fe9b1730ef64dda2fcd662fd83339
- https://git.kernel.org/stable/c/f85a42fb90399dedcf81c146d09c07e4548b1e8c
- https://git.kernel.org/stable/c/4ea933a36a14bec19b71025cdd8407bafbd67ec1
- https://git.kernel.org/stable/c/1096397c31f6bffa95e77bdd18fbca085be83e10
- https://git.kernel.org/stable/c/600dcd548fb2b00a69f447684f52ba45d5a3540e
- https://git.kernel.org/stable/c/b2a3eeb57ba24f8a0e34a69d40adcc63e5b9ca56
- https://git.kernel.org/stable/c/8cbad52ccfa6a7f089cfab34979bc6cc3bff25be
- https://git.kernel.org/stable/c/7fb13fd7e9a59a37cd911efff83abe19e3ee029d
European references
- ENISA EUVD · EUVD-2026-57042
- GCVE · GCVE-0-2026-68434
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-1255 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1202 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1164 — Multiples vulnérabilités dans le noyau Linux de SUSE · 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 763d61ded752fbb3116efc951eff4363f237b7e0 < bdaa8871b53fe9b1730ef64dda2fcd662fd83339 ; affected c7d190bb07bf4e3b217c69370e94d1b4c80a40ad < f85a42fb90399dedcf81c146d09c07e4548b1e8c ; affected 0b3ed3fa227ba778cabed96e7f8d84addb8bdf9c < 4ea933a36a14bec19b71025cdd8407bafbd67ec1 ; affected 587afb06a5d1dc5092d3d9e9ac3ccf22094d50c6 < 1096397c31f6bffa95e77bdd18fbca085be83e10 ; affected 977855894bca4b87afa50d21e3f3e85a5a0e901f < 600dcd548fb2b00a69f447684f52ba45d5a3540e ; affected 1cd54e217c6e2cdb794a897b2f855e13ffcee586 < b2a3eeb57ba24f8a0e34a69d40adcc63e5b9ca56 |
| Linux · Linux | affected 5.10.261 < 5.10.266 ; affected 5.15.212 < 5.15.217 ; affected 6.1.178 < 6.1.183 ; affected 6.6.145 < 6.6.148 ; affected 6.12.96 < 6.12.101 ; affected 6.18.39 < 6.18.42 |
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 |