CVE-2026-53222
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
25/06/2026
Last modified:
02/07/2026
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
ptp: ocp: fix resource freeing order<br />
<br />
Commit a60fc3294a37 ("ptp: rework ptp_clock_unregister() to disable<br />
events") added a call to ptp_disable_all_events() which changes the<br />
configuration of pins if they support EXTTS events. In ptp_ocp_detach()<br />
pins resources are freed before ptp_clock_unregister() and it leads to<br />
use-after-free during driver removal. Fix it by changing the order of<br />
free/unregister calls. To avoid irq handler running on the other core<br />
while ptp device unregistering, call synchronize_irq() after HW is<br />
configured to stop producing irqs and no irqs are in-flight.
Impact
Base Score 3.x
5.50
Severity 3.x
MEDIUM
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 6.18 (including) | 7.0.13 (excluding) |
| cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:7.1:rc6:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:7.1:rc7:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page