libceph: make free_choose_arg_map() resilient to partial allocation (Linux Linux)

CVE-2026-22991
HIGH 7.5

En bref

Source
NVD
EPSS
EPSS 0.47 % · centile 40 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: libceph: make free_choose_arg_map() resilient to partial allocation free_choose_arg_map() may dereference a NULL pointer if its caller fails after a partial allocation. For example, in decode_choose_args(), if allocation of arg_map->args fails, execution jumps to the fail label and free_choose_arg_map() is called. Since arg_map->size is updated to a non-zero value before memory allocation, free_choose_arg_map() will iterate over arg_map->args and dereference a NULL pointer. To prevent this potential NULL pointer dereference and make free_choose_arg_map() more resilient, add checks for pointers before iterating.

Faiblesses (CWE)

  • CWE-476 — Déréférencement de pointeur nul

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)
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 5cf9c4a9959b6273675310d14a834ef14fbca37c < 9b3730dabcf3764bfe3ff07caf55e641a0b45234 ; affected 5cf9c4a9959b6273675310d14a834ef14fbca37c < 851241d3f78a5505224dc21c03d8692f530256b4 ; affected 5cf9c4a9959b6273675310d14a834ef14fbca37c < ec1850f663da64842614c86b20fe734be070c2ba ; affected 5cf9c4a9959b6273675310d14a834ef14fbca37c < 8081faaf089db5280c3be820948469f7c58ef8dd ; affected 5cf9c4a9959b6273675310d14a834ef14fbca37c < c4c2152a858c0ce4d2bff6ca8c1d5b0ef9f2cbdf ; affected 5cf9c4a9959b6273675310d14a834ef14fbca37c < f21c3fdb96833aac2f533506899fe38c19cf49d5
Linux · Linuxaffected 4.13 ; unaffected 0 < 4.13 ; unaffected 5.10.248 ≤ 5.10.* ; unaffected 5.15.198 ≤ 5.15.* ; unaffected 6.1.161 ≤ 6.1.* ; unaffected 6.6.121 ≤ 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