# CVE-2026-72182: power: supply: charger-manager: fix refcount leak in is_full_charged()

Status: published. Published: 2026-08-15. Updated: 2026-11-06.

In the Linux kernel, the following vulnerability has been resolved:

power: supply: charger-manager: fix refcount leak in is_full_charged()

In is_full_charged(), power_supply_get_by_name() is called to
obtain a reference to the fuel_gauge power supply. If the
voltage check (uV >= desc->fullbatt_uV) succeeds, the function
returns true directly without releasing the reference, leaking
the refcount.

Fix this by setting a flag and jumping to the out label where
power_supply_put() properly drops the reference.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Linux / Linux: ≥ e132fc6bb89bd307cfcdb8ba24afcd1985261485; < afe3202c30bdff0635818ab525fe2694309d2692 (affected, git); ≥ e132fc6bb89bd307cfcdb8ba24afcd1985261485; < 93b99b63ad5657225faf702670ddfeddf1f0ae29 (affected, git); ≥ e132fc6bb89bd307cfcdb8ba24afcd1985261485; < 6f75912cc6ff4c05ff13af351c4eea49b6b3c078 (affected, git); ≥ e132fc6bb89bd307cfcdb8ba24afcd1985261485; < e44ad91e9f75f3e3ccbdb85ffe699471f9675e5b (affected, git); ≥ e132fc6bb89bd307cfcdb8ba24afcd1985261485; < 3999f47e4bbf864e3c7fbfd813fb2f651e6b5714 (affected, git); ≥ e132fc6bb89bd307cfcdb8ba24afcd1985261485; < 193e6471e985c2f25d09b3fe96ec52f4eab89bd4 (affected, git); ≥ e132fc6bb89bd307cfcdb8ba24afcd1985261485; < e8631b883338ea4c3b5d8ddfbe16407af9f0b4b9 (affected, git); ≥ e132fc6bb89bd307cfcdb8ba24afcd1985261485; < 4373cfa38ead58f980362c841b0d0bdf8c4d956c (affected, git). Source: CNA: Linux
- Linux / Linux: 5.10 (affected); ≥ 0; < 5.10 (unaffected, semver); ≥ 5.10.261; ≤ 5.10.* (unaffected, semver); ≥ 5.15.212; ≤ 5.15.* (unaffected, semver); ≥ 6.1.178; ≤ 6.1.* (unaffected, semver); ≥ 6.6.145; ≤ 6.6.* (unaffected, semver); ≥ 6.12.97; ≤ 6.12.* (unaffected, semver); ≥ 6.18.40; ≤ 6.18.* (unaffected, semver); ≥ 7.1.5; ≤ 7.1.* (unaffected, semver); ≥ 7.2; ≤ * (unaffected, original_commit_for_fix). Source: CNA: Linux

## Severity and prioritization

- CISA KEV: No listing in collected sources

- EPSS: 0.22% as of 2026-11-06; percentile 12.55%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: Not reported

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://git.kernel.org/stable/c/afe3202c30bdff0635818ab525fe2694309d2692 (CNA: Linux)

- https://git.kernel.org/stable/c/93b99b63ad5657225faf702670ddfeddf1f0ae29 (CNA: Linux)

- https://git.kernel.org/stable/c/6f75912cc6ff4c05ff13af351c4eea49b6b3c078 (CNA: Linux)

- https://git.kernel.org/stable/c/e44ad91e9f75f3e3ccbdb85ffe699471f9675e5b (CNA: Linux)

- https://git.kernel.org/stable/c/3999f47e4bbf864e3c7fbfd813fb2f651e6b5714 (CNA: Linux)

- https://git.kernel.org/stable/c/193e6471e985c2f25d09b3fe96ec52f4eab89bd4 (CNA: Linux)

- https://git.kernel.org/stable/c/e8631b883338ea4c3b5d8ddfbe16407af9f0b4b9 (CNA: Linux)

- https://git.kernel.org/stable/c/4373cfa38ead58f980362c841b0d0bdf8c4d956c (CNA: Linux)

- https://git.kernel.org/stable/c/193e6471e985c2f25d09b3fe96ec52f4eab89bd4 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/3999f47e4bbf864e3c7fbfd813fb2f651e6b5714 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/4373cfa38ead58f980362c841b0d0bdf8c4d956c (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/6f75912cc6ff4c05ff13af351c4eea49b6b3c078 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/93b99b63ad5657225faf702670ddfeddf1f0ae29 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/afe3202c30bdff0635818ab525fe2694309d2692 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/e44ad91e9f75f3e3ccbdb85ffe699471f9675e5b (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/e8631b883338ea4c3b5d8ddfbe16407af9f0b4b9 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

## Provenance

- CNA: Linux: https://www.cve.org/CVERecord?id=CVE-2026-72182; retrieved 2026-11-06; source updated 2026-11-06

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-72182; retrieved 2026-11-06; source updated 2026-11-06

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-72182; retrieved 2026-11-06; source updated Not reported

Revision: ab289233d739fc05f42c3e7bc1d13d531a93e138e8388b4460db8c29f309580e

Canonical: https://y2.dev/cve/CVE-2026-72182

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