CVE-2026-31685critical

CVE-2026-31685: falha crítica em Linux

netfilter: ip6t_eui64: reject invalid MAC header for all packets

Publicada em · Atualizada em

28Vexday Risk Score

Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.

ssvc Trackcvss 9.4epss 0.3%
probabilidade de exploração
0.3%top 75% das CVEs
exploração observada
nãonenhuma fonte reporta
In the Linux kernel, the following vulnerability has been resolved: netfilter: ip6t_eui64: reject invalid MAC header for all packets `eui64_mt6()` derives a modified EUI-64 from the Ethernet source address and compares it with the low 64 bits of the IPv6 source address. The existing guard only rejects an invalid MAC header when `par->fragoff != 0`. For packets with `par->fragoff == 0`, `eui64_mt6()` can still reach `eth_hdr(skb)` even when the MAC header is not valid. Fix this by removing the `par->fragoff != 0` condition so that packets with an invalid MAC header are rejected before accessing `eth_hdr(skb)`.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
Produtos afetados
Linux · Linux
CVEs relacionadas — Linux

No mesmo produto, das mais perigosas para as menos.

CVE-2024-53197HIGHALSA: usb-audio: Fix potential out-of-bound accesses for Extigy and Mbox devicesEPSS 4.1%KEVCVE-2026-31431HIGHcrypto: algif_aead - Revert to operating out-of-placeEPSS 3.4%KEVCVE-2024-53104HIGHmedia: uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in uvc_parse_formatEPSS 3.4%KEVCVE-2025-39682CRITICALtls: fix handling of zero-length records on the rx_listEPSS 2.9%KEVCVE-2024-36971HIGHnet: fix __dst_negative_advice() raceEPSS 2.7%KEVCVE-2024-53150HIGHALSA: usb-audio: Fix out of bounds reads when finding clock sourcesEPSS 1.4%KEV
Referências
https://git.kernel.org/stable/c/288138418bef956f8b295751a4536c60f0e89f4ahttps://git.kernel.org/stable/c/309ae3e9a51a69699ca94eac5fac5688fa562d55https://git.kernel.org/stable/c/4d75bc2cd093bf5803edf512c099bfb220fd6459https://git.kernel.org/stable/c/7d6a57411caf54df025860c9b1a82cd42d57a562https://git.kernel.org/stable/c/807d6ee15804df6f01a35c910f09612e858739a6https://git.kernel.org/stable/c/9eda5478746ef7dc0e4e537b5a5e4b0ca1027091https://git.kernel.org/stable/c/d5603591373441fecf9951833d6d873e09320f08https://git.kernel.org/stable/c/fdce0b3590f724540795b874b4c8850c90e6b0a8