CVE-2026-74474

Katalog CVE

CVSS 9.8 · Critical EPSS 0,49%

Skor CVSS 3.1 9.8 (Critical) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: vxlan: use pskb_network_may_pull() for transmit path header pulls In vxlan_xmit(), arp_reduce(), and vxlan_mdb_entry_skb_get(), pskb_may_pull() was being called to verify the availability of network layer headers (ARP, IPv6/ND, IP/IPv6 MDB keys). However, during transmit skb->data points to the MAC header, so skb_network_offset(skb) is ETH_HLEN (14 bytes). Using pskb_may_pull(skb, len) only checks len bytes from skb->data rather than skb_network_offset(skb) + len, which can leave part of the network header in non-linear frags. Replace these remaining pskb_may_pull() calls with pskb_network_may_pull() to properly account for the MAC header offset.

Rincian

Terbit di NVD

15 Agustus 2026

Terakhir diubah

14 September 2026

Status NVD

Received

CVSS 3.1

9.8 (Critical), sumber CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

EPSS (30 hari)

0,49% peluang dieksploitasi; lebih tinggi dari 40,5% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/371425d4be7795e9158388af9eee0201e6047410
• https://git.kernel.org/stable/c/6146901881f09ef063eb34ad389f63231f8486f5
• https://git.kernel.org/stable/c/7076a34b6e33315dc160b4612bfea1c597495585
• https://git.kernel.org/stable/c/94dee751aad627b3645d424b5d0c736d394573e9
• https://git.kernel.org/stable/c/b9553558b48db54ac9273e6b98d7263ef5c1a329
• https://git.kernel.org/stable/c/bb01c51950c3ff3c76acdd54b85ab38ccc2a8bb4