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NVD / CVE Program· CNA Linux

CVE-2026-93145: clk: qcom: gdsc: tear down per-domain genpds in gdsc_unregister()

Noroxi assessment

Priority: Monitor (action score 0/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.21% (FIRST EPSS).
  • Fixed version: Linux Linux 0f4733f5fc6b6b62750619f30c18730922a1dbdb, 40bd77fa2857ccfa77b885b77d44cea406f24a4c, 418d2f0a32b2a9ceb656a88aa9139408a9b7b517; azl3 kernel 6.6.152.1-1 on Azure Linux 3.0 6.6.157.1-1.

Low priority for now. Upgrade to Linux Linux 0f4733f5fc6b6b62750619f30c18730922a1dbdb, 40bd77fa2857ccfa77b885b77d44cea406f24a4c, 418d2f0a32b2a9ceb656a88aa9139408a9b7b517; azl3 kernel 6.6.152.1-1 on Azure Linux 3.0 6.6.157.1-1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: clk: qcom: gdsc: tear down per-domain genpds in gdsc_unregister() gdsc_unregister() removes the OF provider entry and tears down the parent/subdomain wiring, but never calls pm_genpd_remove() on the individual generic_pm_domain structures registered by gdsc_init(): void gdsc_unregister(struct gdsc_desc *desc) { struct device *dev = desc->dev; size_t num = desc->num; gdsc_pm_subdomain_remove(desc, num); of_genpd_del_provider(dev->of_node); } That leaves dangling entries on the global gpd_list. After a provider unbind/rebind cycle (deferred-probe replay during early boot, real module unload of a clk driver that owns GDSCs, or an OF-overlay tear- down) the next gdsc_init() will end up trying to re-register a name that is still in the list and pm_genpd_init() returns -EEXIST. While we are here, flip the order so the consumer-facing OF provider entry is the first thing removed -- otherwise a fresh of_genpd_get_from_provider() call racing with the teardown could attach to a domain that is mid-removal. Iterate the scs[] array and pm_genpd_remove() each registered domain after the subdomain links are torn down. The regulators stay devm- managed (devm_regulator_get_optional() in gdsc_register()), so the release happens automatically when the underlying device is unbound; just the genpd accounting needs to be undone explicitly.

—No exploit Fix available
Published
Sep 17, 2026
Updated
Oct 19, 2026
EPSS
0.2% · 12th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

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Noroxi analysis

What does it mean in your environment?

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 4.4affected
    • 45dd0e55317ccb27fe8eae639275c2b3a2fb52e5 and later · before 418d2f0a32b2a9ceb656a88aa9139408a9b7b517affected · git
    • 45dd0e55317ccb27fe8eae639275c2b3a2fb52e5 and later · before 6333cbf7e86df9797b342ce64ae7d32ba46d8d10affected · git
    • 45dd0e55317ccb27fe8eae639275c2b3a2fb52e5 and later · before cfe16d993c578f6b17e0171a8dfd68f6fdfcfb24affected · git
    • 45dd0e55317ccb27fe8eae639275c2b3a2fb52e5 and later · before 0f4733f5fc6b6b62750619f30c18730922a1dbdbaffected · git
    • 45dd0e55317ccb27fe8eae639275c2b3a2fb52e5 and later · before 6b9228a43963bcd4db92deb467375345132c29b3affected · git
    • 45dd0e55317ccb27fe8eae639275c2b3a2fb52e5 and later · before f60f495858379dc70e87c6898d761a9db98739ffaffected · git
    • 45dd0e55317ccb27fe8eae639275c2b3a2fb52e5 and later · before 40bd77fa2857ccfa77b885b77d44cea406f24a4caffected · git
    • 45dd0e55317ccb27fe8eae639275c2b3a2fb52e5 and later · before 86b23609d5e17a770d03037e53c6a443e742a6e6affected · git
    • before 4.4not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.190-16.1.190-1
Debian:12linux-6.12before 6.12.111-1~deb12u16.12.111-1~deb12u1
Debian:13linuxbefore 6.12.111-16.12.111-1
Debian:14linuxbefore 7.2.6-17.2.6-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-93143Sep 17, 2026 · staging: media: ipu7: fix pm_runtime refcount leak in ipu7_resume()
    0Monitor
  • ← EarlierCVE-2026-93144Sep 17, 2026 · bpf: Reject writes through untrusted BTF pointers
    31Monitor
  • Later →CVE-2026-93146Sep 17, 2026 · time/namespace: Validate nanosecond field in proc_timens_set_offset()
    0Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux0f4733f5fc6b6b62750619f30c18730922a1dbdbVendor (CNA)
Linux Linux40bd77fa2857ccfa77b885b77d44cea406f24a4cVendor (CNA)
Linux Linux418d2f0a32b2a9ceb656a88aa9139408a9b7b517Vendor (CNA)
Linux Linux6333cbf7e86df9797b342ce64ae7d32ba46d8d10Vendor (CNA)
Linux Linux6b9228a43963bcd4db92deb467375345132c29b3Vendor (CNA)
Linux Linux86b23609d5e17a770d03037e53c6a443e742a6e6Vendor (CNA)
Linux Linuxcfe16d993c578f6b17e0171a8dfd68f6fdfcfb24Vendor (CNA)
Linux Linuxf60f495858379dc70e87c6898d761a9db98739ffVendor (CNA)
azl3 kernel 6.6.150.1-1 on Azure Linux 3.0—Microsoft (MSRC)
azl3 kernel 6.6.152.1-1 on Azure Linux 3.06.6.157.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.1.190-1 · Debian:12Package registry (OSV)
debian:linux6.12.111-1 · Debian:13Package registry (OSV)
debian:linux-6.126.12.111-1~deb12u1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

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References

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

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