Veille CVE
CVE-2026-53091
8.4 ÉlevéeDescription
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.
Produits concernés
Scores CVSS
| Version | Score | Source | Vecteur |
|---|---|---|---|
| 3.1 | 8.4 Élevée | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:H |
| 3.1 | 7.0 Élevée | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
Faiblesses (CWE)
Références
- https://git.kernel.org/stable/c/5895cfc76924a629c6eaa5e5f049de642860045f
- https://git.kernel.org/stable/c/7564dc804d8289d2e5c6edb8173754051b71bff4
- https://git.kernel.org/stable/c/7fb4c19670110f052c04e1ec1d2b953b9f4f57e4 Patch
- https://git.kernel.org/stable/c/9d4f5c68f5ad4ab425f3ce1500c97c9f9743999a Patch
- 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
- https://access.redhat.com/security/cve/CVE-2026-53091 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2492270 Third Party Advisory
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53091.json Third Party Advisory