In the Linux kernel, the following vulnerability has been resolved: ASoC: rt5645: Fix errorenous cleanup order There is a logic error when removing rt5645 device as the function rt5645_i2c_remove() first cancel the &rt5645->jack_detect_work and delete the &rt5645->btn_check_timer latter. However, since the timer handler rt5645_btn_check_callback() will re-queue the jack_detect_work, this cleanup order is buggy. That is, once the del_timer_sync in rt5645_i2c_remove is concurrently run with the rt5645_btn_check_callback, the canceled jack_detect_work will be rescheduled again, leading to possible use-after-free. This patch fix the issue by placing the del_timer_sync function before the cancel_delayed_work_sync.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact total

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

Configuration 1 [-]

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

No data.

References
Link Providers
https://git.kernel.org/stable/c/061a6159cea583f1155f67d1915917a6b9282662 cve-icon cve-icon
https://git.kernel.org/stable/c/0941150100173d4eaf3fe08ff4b16740e7c3026f cve-icon cve-icon
https://git.kernel.org/stable/c/1a5a3dfd9f172dcb115072f0aea5e27d3083c20e cve-icon cve-icon
https://git.kernel.org/stable/c/236d29c5857f02e0a53fdf15d3dce1536c4322ce cve-icon cve-icon
https://git.kernel.org/stable/c/2def44d3aec59e38d2701c568d65540783f90f2f cve-icon cve-icon
https://git.kernel.org/stable/c/453f0920ffc1a28e28ddb9c3cd5562472b2895b0 cve-icon cve-icon
https://git.kernel.org/stable/c/7d801e807536a9a9c2146c5f4a5836f154517ed3 cve-icon cve-icon
https://git.kernel.org/stable/c/88c09e4812d72c3153afc8e5a45ecac2d0eae3ff cve-icon cve-icon
https://git.kernel.org/stable/c/abe7554da62cb489712a54de69ef5665c250e564 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025022606-CVE-2022-49493-a2ff@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2022-49493 cve-icon
https://www.cve.org/CVERecord?id=CVE-2022-49493 cve-icon
History

Mon, 24 Mar 2025 20:00:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel

Thu, 13 Mar 2025 03:00:00 +0000

Type Values Removed Values Added
Metrics threat_severity

Important

 threat_severity

Moderate

Tue, 04 Mar 2025 03:45:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Fri, 28 Feb 2025 01:30:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 threat_severity

Important

Thu, 27 Feb 2025 19:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-416
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Wed, 26 Feb 2025 02:45:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: ASoC: rt5645: Fix errorenous cleanup order There is a logic error when removing rt5645 device as the function rt5645_i2c_remove() first cancel the &rt5645->jack_detect_work and delete the &rt5645->btn_check_timer latter. However, since the timer handler rt5645_btn_check_callback() will re-queue the jack_detect_work, this cleanup order is buggy. That is, once the del_timer_sync in rt5645_i2c_remove is concurrently run with the rt5645_btn_check_callback, the canceled jack_detect_work will be rescheduled again, leading to possible use-after-free. This patch fix the issue by placing the del_timer_sync function before the cancel_delayed_work_sync.
Title ASoC: rt5645: Fix errorenous cleanup order
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-02-26T02:13:29.518Z

Updated: 2025-02-27T18:22:32.146Z

Reserved: 2025-02-26T02:08:31.585Z

Link: CVE-2022-49493

cve-icon Vulnrichment

Updated: 2025-02-27T18:15:47.592Z

cve-icon NVD

Status : Analyzed

Published: 2025-02-26T07:01:25.520

Modified: 2025-03-24T19:43:00.990

Link: CVE-2022-49493

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-02-26T00:00:00Z

Links: CVE-2022-49493 - Bugzilla