ptp: ocp: fix resource freeing order
In the Linux kernel, the following vulnerability has been resolved: ptp: ocp: fix resource freeing order Commit a60fc3294a37 ("ptp: rework ptp_clock_unregister() to disable events") added a call to ptp_disable_all_events() which changes the configuration of pins if they support EXTTS events. In ptp_ocp_detach() pins resources are freed before ptp_clock_unregister() and it leads to use-after-free during driver removal. Fix it by changing the order of free/unregister calls. To avoid irq handler running on the other core while ptp device unregistering, call synchronize_irq() after HW is configured to stop producing irqs and no irqs are in-flight.
CVE-2026-53222
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-53222
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "a60fc3294a377204664b5484e4a487fa124155da",
"lessThan": "daacc9d1430b63f6bee6e5646def5d6414d35c4e",
"versionType": "git"
},
{
"status": "affected",
"version": "a60fc3294a377204664b5484e4a487fa124155da",
"lessThan": "aa03698bb28d3be5ee180adb185395054b342b04",
"versionType": "git"
},
{
"status": "affected",
"version": "a60fc3294a377204664b5484e4a487fa124155da",
"lessThan": "627366c51145a07f675b1800fb5ea2ec960bd900",
"versionType": "git"
}
],
"programFiles": [
"drivers/ptp/ptp_ocp.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.18"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.18",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.18.57",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.0.13",
"versionType": "semver",
"lessThanOrEqual": "7.0.*"
},
{
"status": "unaffected",
"version": "7.1",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/ptp/ptp_ocp.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-53222
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #28612 · Revision 1
- Added to Heist Feed
- Publisher date