CVE-2022-50887 (GCVE-0-2022-50887)
Vulnerability from cvelistv5 – Published: 2025-12-30 12:37 – Updated: 2025-12-30 12:37
VLAI?
Title
regulator: core: fix unbalanced of node refcount in regulator_dev_lookup()
Summary
In the Linux kernel, the following vulnerability has been resolved:
regulator: core: fix unbalanced of node refcount in regulator_dev_lookup()
I got the the following report:
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@62/regulators/exten
In of_get_regulator(), the node is returned from of_parse_phandle()
with refcount incremented, after using it, of_node_put() need be called.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux |
Affected:
69511a452e6dc6b74fe4f3671a51b1b44b9c57e3 , < 0e88505ac0a6ae97746bcdbd4b042ee9f20455ae
(git)
Affected: 69511a452e6dc6b74fe4f3671a51b1b44b9c57e3 , < 4dfcf5087db9a34a300d6b99009232d4537c3e6a (git) Affected: 69511a452e6dc6b74fe4f3671a51b1b44b9c57e3 , < 3ac888db0f67813d91373a9a61c840f815cd4ec9 (git) Affected: 69511a452e6dc6b74fe4f3671a51b1b44b9c57e3 , < d39937f8de641c44a337cec4a2e5d3e8add20a7d (git) Affected: 69511a452e6dc6b74fe4f3671a51b1b44b9c57e3 , < f48c474efe05cf9ce5e535b5e0ddd710e963936c (git) Affected: 69511a452e6dc6b74fe4f3671a51b1b44b9c57e3 , < cda1895f3b7f324ece1614308a815a3994983b97 (git) Affected: 69511a452e6dc6b74fe4f3671a51b1b44b9c57e3 , < 2b93c58adddd98812ad928bbc2063038f3df1ffd (git) Affected: 69511a452e6dc6b74fe4f3671a51b1b44b9c57e3 , < 2f98469c3141f8e42ba11075a273fb795bbad57f (git) Affected: 69511a452e6dc6b74fe4f3671a51b1b44b9c57e3 , < f2b41b748c19962b82709d9f23c6b2b0ce9d2f91 (git) |
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{
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"versions": [
{
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"version": "3.3"
},
{
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"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.9.*",
"status": "unaffected",
"version": "4.9.337",
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},
{
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"version": "4.14.303",
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},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.270",
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},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.229",
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{
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"version": "6.0.16",
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},
{
"lessThanOrEqual": "6.1.*",
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"version": "6.1.2",
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},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.2",
"versionType": "original_commit_for_fix"
}
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}
],
"cpeApplicability": [
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],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nregulator: core: fix unbalanced of node refcount in regulator_dev_lookup()\n\nI got the the following report:\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@62/regulators/exten\n\nIn of_get_regulator(), the node is returned from of_parse_phandle()\nwith refcount incremented, after using it, of_node_put() need be called."
}
],
"providerMetadata": {
"dateUpdated": "2025-12-30T12:37:05.505Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
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"references": [
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"url": "https://git.kernel.org/stable/c/0e88505ac0a6ae97746bcdbd4b042ee9f20455ae"
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"url": "https://git.kernel.org/stable/c/4dfcf5087db9a34a300d6b99009232d4537c3e6a"
},
{
"url": "https://git.kernel.org/stable/c/3ac888db0f67813d91373a9a61c840f815cd4ec9"
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{
"url": "https://git.kernel.org/stable/c/d39937f8de641c44a337cec4a2e5d3e8add20a7d"
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{
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{
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{
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},
{
"url": "https://git.kernel.org/stable/c/f2b41b748c19962b82709d9f23c6b2b0ce9d2f91"
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],
"title": "regulator: core: fix unbalanced of node refcount in regulator_dev_lookup()",
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"cveId": "CVE-2022-50887",
"datePublished": "2025-12-30T12:37:05.505Z",
"dateReserved": "2025-12-30T12:35:41.595Z",
"dateUpdated": "2025-12-30T12:37:05.505Z",
"state": "PUBLISHED"
},
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"vulnerability-lookup:meta": {
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}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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