CVE-2026-64301: regulator: scmi: fix of_node refcount leak in scmi_regulator_probe()
Vulnerability summary
CVE-2026-64301 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5.1% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 25 · Related 25Timeline
- 25-07-2026PublishedVulnerability first disclosed.
- 17-08-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: regulator: scmi: fix of_node refcount leak in scmi_regulator_probe() scmi_regulator_probe() calls of_find_node_by_name() which takes a reference on the returned device node. On the error path where process_scmi_regulator_of_node() fails, the function returns without calling of_node_put() on the child node, leaking the reference. Add of_node_put(np) on the error path to properly release the reference.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.16%
Chance of exploitation in the next 30 days
Percentile
5%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.16% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu157 products
- linuxAll versions (No fix recorded) | < 5.15.0-198.208 | < 6.8.0-147.147 | < 7.0.0-31.31
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.15.0-1117.124 | < 6.8.0-1067.70 | < 7.0.0-1012.12
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian2 products
- linux< 6.1.180-1 | < 6.12.96-1 | < 7.1.4-1
- linux-6.12< 6.12.100-1~deb12u1
Linux2 products
- linux≥ 0fbeae70ee7ce98e18a47337cd1f205dd88589e9, < 1e446e8f8c763be3de7d0362e024cdf46194ffef | ≥ 0fbeae70ee7ce98e18a47337cd1f205dd88589e9, < 637c11e3d8d43a7ee654591cda8d17c55a9234fa | ≥ 0fbeae70ee7ce98e18a47337cd1f205dd88589e9, < e2baf8ea13fb4b10bec2c4751aea05c00dabcd0f | ≥ 0fbeae70ee7ce98e18a47337cd1f205dd88589e9, < 3e1441a4d06d35a314961e40057bd1f0106bbc14 | ≥ 0fbeae70ee7ce98e18a47337cd1f205dd88589e9, < 22cb337370e6539b0418832c6040e9b00c1b74ca | ≥ 0fbeae70ee7ce98e18a47337cd1f205dd88589e9, < a935b64548fcfe1d5b4dbdd31dddfb0d7019367f | ≥ 0fbeae70ee7ce98e18a47337cd1f205dd88589e9, < fa11039d6cdff84584a3ef8cc1f5e1b56e045da2 | 5.11
- linux_kernel≥ 5.11, < 5.15.212 | ≥ 5.16, < 6.1.178 | ≥ 6.2, < 6.6.145 | ≥ 6.7, < 6.12.96 | ≥ 6.13, < 6.18.39 | ≥ 6.19, < 7.1.4
3 vendors · 161 products
