net: vxlan: prevent NULL deref in vxlan_xmit_one (Linux Linux)
En bref
- Source
- NVD
- EPSS
- EPSS 0.22 % · centile 13 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- Linux
- Statut NVD
- Deferred
Rechercher sur…
Description
In the Linux kernel, the following vulnerability has been resolved: net: vxlan: prevent NULL deref in vxlan_xmit_one Neither sock4 nor sock6 pointers are guaranteed to be non-NULL in vxlan_xmit_one, e.g. if the iface is brought down. This can lead to the following NULL dereference: BUG: kernel NULL pointer dereference, address: 0000000000000010 Oops: Oops: 0000 [#1] SMP NOPTI RIP: 0010:vxlan_xmit_one+0xbb3/0x1580 Call Trace: vxlan_xmit+0x429/0x610 dev_hard_start_xmit+0x55/0xa0 __dev_queue_xmit+0x6d0/0x7f0 ip_finish_output2+0x24b/0x590 ip_output+0x63/0x110 Mentioned commits changed the code path in vxlan_xmit_one and as a side effect the sock4/6 pointer validity checks in vxlan(6)_get_route were lost. Fix this by adding back checks. Since both commits being fixed were released in the same version (v6.7) and are strongly related, bundle the fixes in a single commit.
Références
Références européennes
- ENISA EUVD · EUVD-2025-205101
- GCVE · GCVE-0-2025-68353
Avis du CERT-FR
- CERTFR-2026-AVI-0495 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0453 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0128 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Produits affectés
| Produit | Versions |
|---|---|
| Linux · Linux | affected 6f19b2c136d98a84d79030b53e23d405edfdc783 < 333deb6b43c11d5bce00463b364ac993d2fa02a6 ; affected 6f19b2c136d98a84d79030b53e23d405edfdc783 < 4ac26aafdc8c7271414e2e7c0b2cb266a26591bc ; affected 6f19b2c136d98a84d79030b53e23d405edfdc783 < 1f73a56f986005f0bc64ed23873930e2ee4f5911 |
| Linux · Linux | affected 6.7 ; unaffected 0 < 6.7 ; unaffected 6.12.114 ≤ 6.12.* ; unaffected 6.18.2 ≤ 6.18.* ; unaffected 6.19 ≤ * |
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 |