net/packet: clear RX owner on VNET header error (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: net/packet: clear RX owner on VNET header error Commit 61fad6816fc1 ("net/packet: tpacket_rcv: avoid a producer race condition") added rx_owner_map and made tpacket_rcv() claim a V1 or V2 ring slot before converting the virtio-net header. If the conversion fails, the drop path leaves the slot claimed. With a one-frame TPACKET_V2 ring, an unsupported UDP GSO packet leaves the only slot unavailable, so the ring also drops the next valid packet. Clear the ownership bit on this error path. TPACKET_V3 already clears its block state here.
References
- https://git.kernel.org/stable/c/bb10a0084c03a94364aeec542beddc5d49b59f59
- https://git.kernel.org/stable/c/b8c0cb3069058c2d67b5c7c833b2833381ecffdc
- https://git.kernel.org/stable/c/2daa618e7ff19eefcbda281bc4c5998c4140f9cf
- https://git.kernel.org/stable/c/23cd30498891d29a69ec9b75bd92f8a0f21f1342
- https://git.kernel.org/stable/c/49a48a5aaf85fe69d2dc3fb334b4854fadf44e39
- https://git.kernel.org/stable/c/805edbdcb8681da5f7ee43b3c3c809f7a8c31208
- https://git.kernel.org/stable/c/693209a237fc548791cf402441db8b68d1da7d38
- https://git.kernel.org/stable/c/33ff111d7ba3beb86e28938d6382bb5beabd865a
European references
- ENISA EUVD · EUVD-2026-93161
- GCVE · GCVE-0-2026-98233
CERT-FR advisories
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1375 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1374 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 < bb10a0084c03a94364aeec542beddc5d49b59f59 ; affected 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 < b8c0cb3069058c2d67b5c7c833b2833381ecffdc ; affected 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 < 2daa618e7ff19eefcbda281bc4c5998c4140f9cf ; affected 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 < 23cd30498891d29a69ec9b75bd92f8a0f21f1342 ; affected 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 < 49a48a5aaf85fe69d2dc3fb334b4854fadf44e39 ; affected 61fad6816fc10fb8793a925d5c1256d1c3db0cd2 < 805edbdcb8681da5f7ee43b3c3c809f7a8c31208 |
| Linux · Linux | affected 5.6 ; unaffected 0 < 5.6 ; unaffected 5.10.271 ≤ 5.10.* ; unaffected 5.15.222 ≤ 5.15.* ; unaffected 6.1.189 ≤ 6.1.* ; unaffected 6.6.158 ≤ 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 |