libceph: Fix potential out-of-bounds access in osdmap_decode() (Linux Linux)

CVE-2026-52958
CRITICAL 9.1

En bref

Source
NVD
EPSS
EPSS 0.73 % · centile 54 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: libceph: Fix potential out-of-bounds access in osdmap_decode() When decoding osd_state and osd_weight from an incoming osdmap in osdmap_decode(), both are decoded for each osd, i.e., map->max_osd times. The ceph_decode_need() check only accounts for sizeof(*map->osd_weight) once. This can potentially result in an out-of-bounds memory access if the incoming message is corrupted such that the max_osd value exceeds the actual content of the osdmap message. This patch fixes the issue by changing the corresponding part in the ceph_decode_need() check to account for map->max_osd*sizeof(*map->osd_weight).

Faiblesses (CWE)

  • CWE-125 — Lecture hors limites

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1CRITICAL 9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:HLinux
CVSS 3.1CRITICAL 9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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 dcbc919a5dc8c2629684a113a90c0b6fe10c3462 < 36a79759a288961b1ff28a68ec2d1f56f6848098 ; affected dcbc919a5dc8c2629684a113a90c0b6fe10c3462 < 3f2575bb7f955d42569d96c3e04fa958a0dcf4b4 ; affected dcbc919a5dc8c2629684a113a90c0b6fe10c3462 < 8713bbc4b2b9ad78f803978e54b7e49dd21bd9be ; affected dcbc919a5dc8c2629684a113a90c0b6fe10c3462 < 0d2dd7e6bb74fd7712aa73457a4a821906c6863a ; affected dcbc919a5dc8c2629684a113a90c0b6fe10c3462 < e7187f33c02488697ec0d01d82bf7a3f8deaba8f ; affected dcbc919a5dc8c2629684a113a90c0b6fe10c3462 < 48df98d12b15360cd56af5c1f460307b340c1197
Linux · Linuxaffected 5.3 ; unaffected 0 < 5.3 ; unaffected 5.10.258 ≤ 5.10.* ; unaffected 5.15.209 ≤ 5.15.* ; unaffected 6.1.175 ≤ 6.1.* ; unaffected 6.6.141 ≤ 6.6.*

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