CVE-2023-52475

Source
https://nvd.nist.gov/vuln/detail/CVE-2023-52475
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-52475.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2023-52475
Downstream
Related
Published
2024-02-29T06:15:45Z
Modified
2025-08-09T20:01:26Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved:

Input: powermate - fix use-after-free in powermateconfigcomplete

syzbot has found a use-after-free bug [1] in the powermate driver. This happens when the device is disconnected, which leads to a memory free from the powermate_device struct. When an asynchronous control message completes after the kfree and its callback is invoked, the lock does not exist anymore and hence the bug.

Use usbkillurb() on pm->config to cancel any in-progress requests upon device disconnection.

[1] https://syzkaller.appspot.com/bug?extid=0434ac83f907a1dbdd1e

References

Affected packages