libceph: handle rbtree insertion error in decode_choose_args() (Linux Linux)

CVE-2026-52954
HIGH 7.5

En bref

Source
NVD
EPSS
EPSS 0.52 % · centile 44 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: libceph: handle rbtree insertion error in decode_choose_args() A message of type CEPH_MSG_OSD_MAP contains an OSD map that itself contains a CRUSH map. The received CRUSH map may optionally contain choose_args that get decoded in decode_choose_args(). In this function, num_choose_arg_maps is read from the message, and a corresponding number of crush_choose_arg_maps gets decoded afterwards. Each crush_choose_arg_map has a choose_args_index, which serves as the key when inserting it into the choose_args rbtree of the decoded crush_map. If a (potentially corrupted) message contains two crush_choose_arg_maps with the same index, the assertion in insert_choose_arg_map() triggers a kernel BUG when trying to insert the second crush_choose_arg_map. This patch fixes the issue by switching to the non-asserting rbtree insertion function and rejecting the message if the insertion fails. [ idryomov: changelog ]

Faiblesses (CWE)

  • CWE-20 — Validation d'entrée incorrecte
  • CWE-617 — Assertion atteignable

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HLinux
CVSS 3.1HIGH 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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 5cf9c4a9959b6273675310d14a834ef14fbca37c < c7bf7864e2924fa5508ac270b0e9364bc13d5a6c ; affected 5cf9c4a9959b6273675310d14a834ef14fbca37c < f47430fc1f815e87406e2d3b4e476eff1bc7fd9b ; affected 5cf9c4a9959b6273675310d14a834ef14fbca37c < 0b6a3bcb91bc5bfeda39f0df3b71bab62c13e9da ; affected 5cf9c4a9959b6273675310d14a834ef14fbca37c < 534ebc08df97c47d4c7596f336fa31ecbf91519c ; affected 5cf9c4a9959b6273675310d14a834ef14fbca37c < 80c73bd1b2b04355d1d0c29be8ccbd25a380905d ; affected 5cf9c4a9959b6273675310d14a834ef14fbca37c < 4d2b37abda9536808655830d683dc491d31741a8
Linux · Linuxaffected 4.13 ; unaffected 0 < 4.13 ; 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