CVE-2022-50246 (GCVE-0-2022-50246)
Vulnerability from cvelistv5
Published
2025-09-15 14:02
Modified
2025-09-15 14:02
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
usb: typec: tcpci: fix of node refcount leak in tcpci_register_port()
I got the following report while doing device(mt6370-tcpc) load
test with CONFIG_OF_UNITTEST and CONFIG_OF_DYNAMIC enabled:
OF: ERROR: memory leak, expected refcount 1 instead of 2,
of_node_get()/of_node_put() unbalanced - destroy cset entry:
attach overlay node /i2c/pmic@34/tcpc/connector
The 'fwnode' set in tcpci_parse_config() which is called
in tcpci_register_port(), its node refcount is increased
in device_get_named_child_node(). It needs be put while
exiting, so call fwnode_handle_put() in the error path of
tcpci_register_port() and in tcpci_unregister_port() to
avoid leak.
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| ▼ | Linux | Linux |
Version: 5e85a04c8c0d271d7561a770b85741f186398868 Version: 5e85a04c8c0d271d7561a770b85741f186398868 Version: 5e85a04c8c0d271d7561a770b85741f186398868 Version: 5e85a04c8c0d271d7561a770b85741f186398868 Version: 5e85a04c8c0d271d7561a770b85741f186398868 Version: 5e85a04c8c0d271d7561a770b85741f186398868 |
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|
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{
"containers": {
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"programFiles": [
"drivers/usb/typec/tcpm/tcpci.c"
],
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"vendor": "Linux",
"versions": [
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},
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"version": "0",
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{
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"version": "5.4.229",
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{
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"version": "5.10.163",
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},
{
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"status": "unaffected",
"version": "5.15.86",
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},
{
"lessThanOrEqual": "6.0.*",
"status": "unaffected",
"version": "6.0.16",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.2",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.2",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
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"nodes": [
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"descriptions": [
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: tcpci: fix of node refcount leak in tcpci_register_port()\n\nI got the following report while doing device(mt6370-tcpc) load\ntest with CONFIG_OF_UNITTEST and CONFIG_OF_DYNAMIC enabled:\n\n OF: ERROR: memory leak, expected refcount 1 instead of 2,\n of_node_get()/of_node_put() unbalanced - destroy cset entry:\n attach overlay node /i2c/pmic@34/tcpc/connector\n\nThe \u0027fwnode\u0027 set in tcpci_parse_config() which is called\nin tcpci_register_port(), its node refcount is increased\nin device_get_named_child_node(). It needs be put while\nexiting, so call fwnode_handle_put() in the error path of\ntcpci_register_port() and in tcpci_unregister_port() to\navoid leak."
}
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"providerMetadata": {
"dateUpdated": "2025-09-15T14:02:04.841Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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{
"url": "https://git.kernel.org/stable/c/d3b6c28a71f111a6c67ddc3238aab95910fd86cf"
},
{
"url": "https://git.kernel.org/stable/c/ba75be6f0d9d028d20852564206565a4c03e3288"
},
{
"url": "https://git.kernel.org/stable/c/e75a324409715bd71348f79a49aa61b69dbeb676"
},
{
"url": "https://git.kernel.org/stable/c/5f125507d2270035dfcf83fbff6cff5a143e200c"
},
{
"url": "https://git.kernel.org/stable/c/0384e87e3fec735e47f1c133c796f32ef7a72a9b"
}
],
"title": "usb: typec: tcpci: fix of node refcount leak in tcpci_register_port()",
"x_generator": {
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}
},
"cveMetadata": {
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"cveId": "CVE-2022-50246",
"datePublished": "2025-09-15T14:02:04.841Z",
"dateReserved": "2025-09-15T13:58:00.972Z",
"dateUpdated": "2025-09-15T14:02:04.841Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
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}