CVE Watch15 jul 2026

CVE-2026-53091

In the Linux kernel, the following vulnerability has been resolved: net: pull headers in qdisc_pkt_len_segs_init() Most ndo_start_xmit() m

CVSS

8.4

Alto

EPSS

0.1%

KEV

—

Exploit Today

0-100

Publicado: 24 jun 2026 · Última mod.: 15 jul 2026 · CWE-131

EPSS · 30d

0.1%EPSS · 30 días0.1%

2026-06-302026-07-16

Descripción técnica

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.

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