CVE-2022-49127

HIGH EPSS 13.6%
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: ref_tracker: implement use-after-free detection Whenever ref_tracker_dir_init() is called, mark the struct ref_tracker_dir as dead. Test the dead status from ref_tracker_alloc() and ref_tracker_free() This should detect buggy dev_put()/dev_hold() happening too late in netdevice dismantle process.

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
13.6% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 1

VendorProductVersionRange
linuxlinux_kernel*≥5.17  –  <5.17.3

References 2

  • git.kernel.org https://git.kernel.org/stable/c/3743c9de303fa36c2e2ca2522ab280c52bcafbd2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e3ececfe668facd87d920b608349a32607060e66
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/3743c9de303fa36c2e2ca2522ab280c52bcafbd2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e3ececfe668facd87d920b608349a32607060e66
    Patch