CVE-2026-74263
net: wwan: t7xx: check skb_clone in control TX
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: net: wwan: t7xx: check skb_clone in control TX t7xx_port_ctrl_tx() clones each skb fragment before passing it to the port transmit path. The clone is used immediately to set cloned->len, so an skb_clone() failure results in a NULL pointer dereference. Check the clone before using it. If previous fragments were already queued, preserve the driver's existing partial-write behavior by returning the number of bytes submitted so far.
References
- https://git.kernel.org/stable/c/7edd4db82f9429591de10be4c904c817f12ba029
- https://git.kernel.org/stable/c/112490467586146d323cb7230b1d72137e36900c
- https://git.kernel.org/stable/c/f7aebaee2961bfcb86f282202d3dbd9b69db1a7c
- https://git.kernel.org/stable/c/4c1b25d85f4c9a0f85f3f8c39988ad266a3f3095
- https://git.kernel.org/stable/c/05f789fa90d95d5771230e78453cedff2486039d
European references
- ENISA EUVD · EUVD-2026-59410
- GCVE · GCVE-0-2026-74263
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
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 36bd28c1cb0dbf48645cfe43159907fb3253b33a < 7edd4db82f9429591de10be4c904c817f12ba029 ; affected 36bd28c1cb0dbf48645cfe43159907fb3253b33a < 112490467586146d323cb7230b1d72137e36900c ; affected 36bd28c1cb0dbf48645cfe43159907fb3253b33a < f7aebaee2961bfcb86f282202d3dbd9b69db1a7c ; affected 36bd28c1cb0dbf48645cfe43159907fb3253b33a < 4c1b25d85f4c9a0f85f3f8c39988ad266a3f3095 ; affected 36bd28c1cb0dbf48645cfe43159907fb3253b33a < 05f789fa90d95d5771230e78453cedff2486039d |
| Linux · Linux | affected 6.4 ; unaffected 0 < 6.4 ; unaffected 6.6.145 ≤ 6.6.* ; unaffected 6.12.97 ≤ 6.12.* ; unaffected 6.18.40 ≤ 6.18.* ; unaffected 7.1.5 ≤ 7.1.* |
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 |