CVE-2026-74663

Katalog CVE

CVSS 7.8 · High EPSS 0,13%

Skor CVSS 3.1 7.8 (High) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: net/sched: reject overly deep qdisc hierarchies Deep qdisc hierarchies can lead to excessive recursion in qdisc tree walkers and exhaust the kernel stack. The existing loop check does not cover the create-and-graft path, so a hierarchy can still be extended by creating a new child qdisc below an already deep parent. Store the hierarchy depth in struct Qdisc and update it when qdiscs are grafted. Reject new child qdiscs once the parent is already at the maximum allowed depth.

Rincian

Terbit di NVD

22 Agustus 2026

Terakhir diubah

27 Agustus 2026

Status NVD

Received

CVSS 3.1

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

EPSS (30 hari)

0,13% peluang dieksploitasi; lebih tinggi dari 2,2% 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/08dc49df1527b09d9ea225a7265bbf6c237097bf
• https://git.kernel.org/stable/c/2759acf08a3454866660edcd3ef4e64139f254a6
• https://git.kernel.org/stable/c/8ca8cdb74939581339e1ae370193c0adb5a85336
• https://git.kernel.org/stable/c/9f69bb9fdaa2fe64b68bb62fb84d405784bee540
• https://git.kernel.org/stable/c/a4b14a4df29d36458a943f9b521ddd0f940363cc
• https://git.kernel.org/stable/c/a627d36c2a94e18c8c105ae68008786dfd85592e
• https://git.kernel.org/stable/c/dedd34b0f2310e28c5f6d4875cfbf4b7ed821c01
• https://git.kernel.org/stable/c/e2d658c6427844cee5bc654b436ca68d680b6148