CVE-2022-49136

Bluetooth: hci_sync: Fix queuing commands when HCI_UNREGISTER is set

At a glance

Severity: HIGH 7.8
EPSS: EPSS 0.26 % · percentile 17 (2026-10-27)
State: PUBLISHED
Published: 2025-02-26
Updated: 2026-08-05
Assigner: Linux
NVD status: Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: Fix queuing commands when HCI_UNREGISTER is set hci_cmd_sync_queue shall return an error if HCI_UNREGISTER flag has been set as that means hci_unregister_dev has been called so it will likely cause a uaf after the timeout as the hdev will be freed.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	HIGH 7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux
CVSS 3.1	HIGH 7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	CISA-ADP
CVSS 3.1	HIGH 7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Weaknesses (CWE)

CWE-416

European references

ENISA EUVD · EUVD-2022-55087
GCVE · GCVE-0-2022-49136

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-0746 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
CERTFR-2025-AVI-0588 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
CERTFR-2025-AVI-0336 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
CERTFR-2025-AVI-0307 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* ≥ 5.17 < 5.17.3

Affected products

Product	Versions
Linux · Linux	affected 6a98e3836fa2077b169f10a35c2ca9952d53f987 < 1c69ef84a808676cceb69210addf5df45b741323 ; affected 6a98e3836fa2077b169f10a35c2ca9952d53f987 < 0b94f2651f56b9e4aa5f012b0d7eb57308c773cf
Linux · Linux	affected 5.17 ; unaffected 0 < 5.17 ; unaffected 5.17.3 ≤ 5.17.* ; unaffected 5.18 ≤ *

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