# CVE-2022-49817: net: mhi: Fix memory leak in mhi_net_dellink()

Status: published. Published: 2025-05-01. Updated: 2026-11-05.

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

net: mhi: Fix memory leak in mhi_net_dellink()

MHI driver registers network device without setting the
needs_free_netdev flag, and does NOT call free_netdev() when
unregisters network device, which causes a memory leak.

This patch calls free_netdev() to fix it since netdev_priv
is used after unregister.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Linux / Linux: ≥ 13adac032982c61bb590669e8e87e51558917ca1; < 88da008e5e2f9753726ea5a51ef2eb144e9de927 (affected, git); ≥ 13adac032982c61bb590669e8e87e51558917ca1; < 25a270343b0f16e1f6e65f541a15975a35e238ff (affected, git); ≥ 13adac032982c61bb590669e8e87e51558917ca1; < f7c125bd79f50ec6094761090be81d02726ec6f4 (affected, git). Source: CNA: Linux
- Linux / Linux: 5.14 (affected); ≥ 0; < 5.14 (unaffected, semver); ≥ 5.15.80; ≤ 5.15.* (unaffected, semver); ≥ 6.0.10; ≤ 6.0.* (unaffected, semver); ≥ 6.1; ≤ * (unaffected, original_commit_for_fix). Source: CNA: Linux

## Severity and prioritization

- CISA KEV: No listing in collected sources

- EPSS: 0.20% as of 2026-11-05; percentile 9.84%

- 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/88da008e5e2f9753726ea5a51ef2eb144e9de927 (CNA: Linux)

- https://git.kernel.org/stable/c/25a270343b0f16e1f6e65f541a15975a35e238ff (CNA: Linux)

- https://git.kernel.org/stable/c/f7c125bd79f50ec6094761090be81d02726ec6f4 (CNA: Linux)

## Provenance

- CNA: Linux: https://www.cve.org/CVERecord?id=CVE-2022-49817; retrieved 2026-11-05; source updated 2026-11-05

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2022-49817; retrieved 2026-11-05; source updated Not reported

Revision: 8c21559ad9ed6d108bf7ea19b315db977a38a5b28a3616bebf5f3eca10879de4

Canonical: https://y2.dev/cve/CVE-2022-49817

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