CVE-2026-53091

Katalog CVE

CVSS 8.4 · High EPSS 0,14%

Kerentanan Incorrect Calculation of Buffer Size pada linux kernel. Skor CVSS 3.1 8.4 (High) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: net: pull headers in qdisc_pkt_len_segs_init() Most ndo_start_xmit() methods expects headers of gso packets to be already in skb->head. net/core/tso.c users are particularly at risk, because tso_build_hdr() does a memcpy(hdr, skb->data, hdr_len); qdisc_pkt_len_segs_init() already does a dissection of gso packets. Use pskb_may_pull() instead of skb_header_pointer() to make sure drivers do not have to reimplement this. Some malicious packets could be fed, detect them so that we can drop them sooner with a new SKB_DROP_REASON_SKB_BAD_GSO drop_reason.

Rincian

Terbit di NVD

24 Juni 2026

Terakhir diubah

14 September 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-131: Incorrect Calculation of Buffer Size

EPSS (30 hari)

0,14% peluang dieksploitasi; lebih tinggi dari 2,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/7fb4c19670110f052c04e1ec1d2b953b9f4f57e4 patch
• https://git.kernel.org/stable/c/9d4f5c68f5ad4ab425f3ce1500c97c9f9743999a patch
• https://access.redhat.com/security/cve/CVE-2026-53091 advisory pihak ketiga
• https://bugzilla.redhat.com/show_bug.cgi?id=2492270 advisory pihak ketiga
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53091.json advisory pihak ketiga
• https://access.redhat.com/errata/RHSA-2026:65334
• https://access.redhat.com/errata/RHSA-2026:66324
• https://access.redhat.com/errata/RHSA-2026:66325
• https://access.redhat.com/errata/RHSA-2026:67150