CVE-2023-52508

nvme-fc: Prevent null pointer dereference in nvme_fc_io_getuuid()

At a glance

Severity: MEDIUM 5.5
EPSS: EPSS 0.22 % · percentile 13 (2026-10-27)
State: PUBLISHED
Published: 2024-03-02
Updated: 2026-05-23
Assigner: Linux
NVD status: Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: nvme-fc: Prevent null pointer dereference in nvme_fc_io_getuuid() The nvme_fc_fcp_op structure describing an AEN operation is initialized with a null request structure pointer. An FC LLDD may make a call to nvme_fc_io_getuuid passing a pointer to an nvmefc_fcp_req for an AEN operation. Add validation of the request structure pointer before dereference.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	MEDIUM 5.5	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CISA-ADP
CVSS 3.1	MEDIUM 5.5	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Weaknesses (CWE)

CWE-476

European references

ENISA EUVD · EUVD-2023-57133
GCVE · GCVE-0-2023-52508

CERT-FR advisories

CERTFR-2026-AVI-0326 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
CERTFR-2026-AVI-0316 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
CERTFR-2025-AVI-0529 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
CERTFR-2024-AVI-0363 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
CERTFR-2024-AVI-0329 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* < 6.1.56
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* ≥ 6.2 < 6.5.6
cpe:2.3:o:linux:linux_kernel:6.6:rc1:*:*:*:*:*:*

Affected products

Product	Versions
Linux · Linux	affected 827fc630e4c8087df5a8e8ee013b686bd6f13736 < be90c9e29dd59b7d19a73297a1590ff3ec1d22ea ; affected 827fc630e4c8087df5a8e8ee013b686bd6f13736 < dd46b3ac7322baf3772b33b29726e94f98289db7 ; affected 827fc630e4c8087df5a8e8ee013b686bd6f13736 < 8ae5b3a685dc59a8cf7ccfe0e850999ba9727a3c ; affected 7a41fdf27a4b1ee565ce5bf3e409b2df0b8514c4 ; affected 5.18.18 < 5.19
Linux · Linux	affected 5.19 ; unaffected 0 < 5.19 ; unaffected 6.1.56 ≤ 6.1.* ; unaffected 6.5.6 ≤ 6.5.* ; unaffected 6.6 ≤ *

References

Sources

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