CVE-2022-49493

HIGH EPSS 15.8%
Published Feb 26, 20251y ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Feb 26, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
15.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel* <4.9.318
linuxlinux_kernel*≥4.10  –  <4.14.283
linuxlinux_kernel*≥4.15  –  <4.19.247
linuxlinux_kernel*≥4.20  –  <5.4.198
linuxlinux_kernel*≥5.5  –  <5.10.121
linuxlinux_kernel*≥5.11  –  <5.15.46
linuxlinux_kernel*≥5.16  –  <5.17.14
linuxlinux_kernel*≥5.18  –  <5.18.3

References 8

  • git.kernel.org https://git.kernel.org/stable/c/061a6159cea583f1155f67d1915917a6b9282662
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/0941150100173d4eaf3fe08ff4b16740e7c3026f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1a5a3dfd9f172dcb115072f0aea5e27d3083c20e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/236d29c5857f02e0a53fdf15d3dce1536c4322ce
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2def44d3aec59e38d2701c568d65540783f90f2f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/453f0920ffc1a28e28ddb9c3cd5562472b2895b0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/88c09e4812d72c3153afc8e5a45ecac2d0eae3ff
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/abe7554da62cb489712a54de69ef5665c250e564
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/061a6159cea583f1155f67d1915917a6b9282662
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/0941150100173d4eaf3fe08ff4b16740e7c3026f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1a5a3dfd9f172dcb115072f0aea5e27d3083c20e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/236d29c5857f02e0a53fdf15d3dce1536c4322ce
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2def44d3aec59e38d2701c568d65540783f90f2f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/453f0920ffc1a28e28ddb9c3cd5562472b2895b0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/88c09e4812d72c3153afc8e5a45ecac2d0eae3ff
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/abe7554da62cb489712a54de69ef5665c250e564
    Patch