vsock/virtio: fix potential unbounded skb queue (Linux Linux)

CVE-2026-53132
HIGH 7.1

En bref

Source
NVD
EPSS
EPSS 0.14 % · centile 3 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: fix potential unbounded skb queue virtio_transport_inc_rx_pkt() checks vvs->rx_bytes + len > vvs->buf_alloc. virtio_transport_recv_enqueue() skips coalescing for packets with VIRTIO_VSOCK_SEQ_EOM. If fed with packets with len == 0 and VIRTIO_VSOCK_SEQ_EOM, a very large number of packets can be queued because vvs->rx_bytes stays at 0. Fix this by estimating the skb metadata size: (Number of skbs in the queue) * SKB_TRUESIZE(0)

Faiblesses (CWE)

  • CWE-400 — Consommation de ressources non maîtrisée (déni de service)
  • CWE-401 — Mémoire non libérée après sa durée de vie utile

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.1CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:HLinux
CVSS 3.1HIGH 7.1CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 077706165717686a2a6a71405fef036cd5b37ae0 < 1eca304f97a34ed5e921e1f0e06c8b241f25bf12 ; affected 077706165717686a2a6a71405fef036cd5b37ae0 < 9bdc637fde66b63d6cad0caacd034888bb7bf5f5 ; affected 077706165717686a2a6a71405fef036cd5b37ae0 < 100d5b2ffdc6468b9e48532641f29e83efdcb63c ; affected 077706165717686a2a6a71405fef036cd5b37ae0 < 059b7dbd20a6f0c539a45ddff1573cb8946685b5 ; affected 5852a2b573f7a3a29df46296e56aa3491e589cdf ; affected 6.1.63 < 6.2
Linux · Linuxaffected 6.3 ; unaffected 0 < 6.3 ; unaffected 6.12.94 ≤ 6.12.* ; unaffected 6.18.36 ≤ 6.18.* ; unaffected 7.0.13 ≤ 7.0.* ; unaffected 7.1 ≤ *

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD