CVE-2022-49136

Advisory lineage Upstream: 0 Downstream: 7
Analyzed
Published: 26 Feb 2025, 01:55
Last modified:11 May 2026, 18:53

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.8 HIGH
v3.1 (cve.org)
EPSS Score
0.1% LOW
0% probability +0.06%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

26 Feb 2025, 01:55
Published
Vulnerability first disclosed
11 May 2026, 18:53
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Trends

Current EPSS score: 0.10%• Percentile: 27%

Techniques & Countermeasures

  • CWE-416•Use After Free

    The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Affected Systems

  • linux•linux

    ≥ 6a98e3836fa2077b169f10a35c2ca9952d53f987, < 1c69ef84a808676cceb69210addf5df45b741323 | ≥ 6a98e3836fa2077b169f10a35c2ca9952d53f987, < 0b94f2651f56b9e4aa5f012b0d7eb57308c773cf | 5.17

  • linux•linux_kernel

    ≥ 5.17, < 5.17.3

References (2)