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CRITICAL

CVE-2026-90042

CVSS v3

9.8

CRITICAL

Score EPSS

0.7 %

probabilité d’exploitation au 2026-09-28

CISA KEV

Non

exploitation connue

Exploitation

—

statut SSVC

Description

In the Linux kernel, the following vulnerability has been resolved: ceph: properly decrypt filenames in vmalloc() buffers The fscrypt subsystem uses the scatterlist crypto API, inheriting its requirement that any buffers are in the linear mapping region. However, the messenger client uses kvmalloc() to create buffers for messages, which will occasionally place those buffers in the vmalloc() region when physical memory fragmentation doesn't permit a large enough kmalloc(). The various callers o

Détails techniques

Publiée le
2026-09-16
Dernière modification
2026-09-16

Questions fréquentes

Qu’est-ce que CVE-2026-90042 ?

In the Linux kernel, the following vulnerability has been resolved: ceph: properly decrypt filenames in vmalloc() buffers The fscrypt subsystem uses the scatterlist crypto API, inheriting its requirement that any buffers are in the linear mapping region. However, the messenger client uses kvmalloc() to create buffers for messages, which will occasionally place those buffers in the vmalloc() region when physical memory fragmentation doesn't permit a large enough kmalloc(). The various callers o

CVE-2026-90042 est-elle activement exploitée ?

Aucune exploitation active de CVE-2026-90042 n’est confirmée. Son score EPSS était de 0.7 % au 2026-09-28, soit la probabilité estimée d’exploitation dans les 30 prochains jours.

Quel est le score CVSS de CVE-2026-90042 ?

CVE-2026-90042 a un score de base CVSS v3 de 9.8 (gravité CRITICAL).

CVE-2026-90042 touche-t-elle votre environnement ?

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