wifi: cfg80211: check IP header size in cfg80211_classify8021d() (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: wifi: cfg80211: check IP header size in cfg80211_classify8021d() A frame that looks like IP can be transmitted, but be too short, so the DS field is read incorrectly: BUG: KMSAN: uninit-value in cfg80211_classify8021d+0x99d/0x12b0 net/wireless/util.c:1027 cfg80211_classify8021d+0x99d/0x12b0 net/wireless/util.c:1027 ieee80211_select_queue+0x37a/0x9e0 net/mac80211/wme.c:180 __ieee80211_subif_start_xmit+0x60f/0x1d90 net/mac80211/tx.c:4304 ieee80211_subif_start_xmit+0xa8/0x6d0 net/mac80211/tx.c:4538 ... packet_sendmsg+0x9173/0xa2a0 net/packet/af_packet.c:3108 Use skb_header_pointer() like the MPLS case.
References
- https://git.kernel.org/stable/c/18d5547327c202cda33ad2bbd203220c2c62c8a7
- https://git.kernel.org/stable/c/3ff17ffa8d02e0e3f6b2f6e57af4aac511f5b734
- https://git.kernel.org/stable/c/c4fbcf1e614ef0755fcc751fdfca21b0bf4e0ef7
- https://git.kernel.org/stable/c/12c0abd4d1c1b04a7663d04ba85268bc9ad9c017
- https://git.kernel.org/stable/c/f33ad4e2f846e55cf4637419268f093ac9f1a765
- https://git.kernel.org/stable/c/a2cdb4a675ca04c4ac8cc962848082d8ce065008
- https://git.kernel.org/stable/c/65893c8d28f239c7ddad5a83683be193a9133e9b
- https://git.kernel.org/stable/c/48b2c5c628b09cf36cbeca53e0432fc2a7518be7
European references
- ENISA EUVD · EUVD-2026-93330
- GCVE · GCVE-0-2026-98345
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 e31a16d6f64ef0e324c6f54d5112703c3f13a9c4 < 18d5547327c202cda33ad2bbd203220c2c62c8a7 ; affected e31a16d6f64ef0e324c6f54d5112703c3f13a9c4 < 3ff17ffa8d02e0e3f6b2f6e57af4aac511f5b734 ; affected e31a16d6f64ef0e324c6f54d5112703c3f13a9c4 < c4fbcf1e614ef0755fcc751fdfca21b0bf4e0ef7 ; affected e31a16d6f64ef0e324c6f54d5112703c3f13a9c4 < 12c0abd4d1c1b04a7663d04ba85268bc9ad9c017 ; affected e31a16d6f64ef0e324c6f54d5112703c3f13a9c4 < f33ad4e2f846e55cf4637419268f093ac9f1a765 ; affected e31a16d6f64ef0e324c6f54d5112703c3f13a9c4 < a2cdb4a675ca04c4ac8cc962848082d8ce065008 |
| Linux · Linux | affected 2.6.31 ; unaffected 0 < 2.6.31 ; 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 |