# CVE-2022-49835: ALSA: hda: fix potential memleak in 'add_widget_node'

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

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

ALSA: hda: fix potential memleak in 'add_widget_node'

As 'kobject_add' may allocated memory for 'kobject->name' when return error.
And in this function, if call 'kobject_add' failed didn't free kobject.
So call 'kobject_put' to recycling resources.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Linux / Linux: ≥ 3256be6537751f65c76b3ecfbb4e667f87525a2f; < b688a3ec235222d9a84e43a48a6f31acb95baf2d (affected, git); ≥ 3256be6537751f65c76b3ecfbb4e667f87525a2f; < bb0ac8d5e541224f599bc8e8f31a313faa4bf7b7 (affected, git); ≥ 3256be6537751f65c76b3ecfbb4e667f87525a2f; < 90b7d055e2b5f39429f9a9e3815b48a48530ef28 (affected, git); ≥ 3256be6537751f65c76b3ecfbb4e667f87525a2f; < 02dea987ec1cac712c78e75d224ceb9bb73519ed (affected, git); ≥ 3256be6537751f65c76b3ecfbb4e667f87525a2f; < 3a79f9568de08657fcdbc41d6fc4c0ca145a7a2b (affected, git); ≥ 3256be6537751f65c76b3ecfbb4e667f87525a2f; < 7140d7aaf93da6a665b454f91bb4dc6b1de218bd (affected, git); ≥ 3256be6537751f65c76b3ecfbb4e667f87525a2f; < 455d99bd6baf19688048b6d42d9fa74eae27f93b (affected, git); ≥ 3256be6537751f65c76b3ecfbb4e667f87525a2f; < 9a5523f72bd2b0d66eef3d58810c6eb7b5ffc143 (affected, git). Source: CNA: Linux
- Linux / Linux: 4.1 (affected); ≥ 0; < 4.1 (unaffected, semver); ≥ 4.9.334; ≤ 4.9.* (unaffected, semver); ≥ 4.14.300; ≤ 4.14.* (unaffected, semver); ≥ 4.19.267; ≤ 4.19.* (unaffected, semver); ≥ 5.4.225; ≤ 5.4.* (unaffected, semver); ≥ 5.10.155; ≤ 5.10.* (unaffected, semver); ≥ 5.15.79; ≤ 5.15.* (unaffected, semver); ≥ 6.0.9; ≤ 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 10.28%

- 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/b688a3ec235222d9a84e43a48a6f31acb95baf2d (CNA: Linux)

- https://git.kernel.org/stable/c/bb0ac8d5e541224f599bc8e8f31a313faa4bf7b7 (CNA: Linux)

- https://git.kernel.org/stable/c/90b7d055e2b5f39429f9a9e3815b48a48530ef28 (CNA: Linux)

- https://git.kernel.org/stable/c/02dea987ec1cac712c78e75d224ceb9bb73519ed (CNA: Linux)

- https://git.kernel.org/stable/c/3a79f9568de08657fcdbc41d6fc4c0ca145a7a2b (CNA: Linux)

- https://git.kernel.org/stable/c/7140d7aaf93da6a665b454f91bb4dc6b1de218bd (CNA: Linux)

- https://git.kernel.org/stable/c/455d99bd6baf19688048b6d42d9fa74eae27f93b (CNA: Linux)

- https://git.kernel.org/stable/c/9a5523f72bd2b0d66eef3d58810c6eb7b5ffc143 (CNA: Linux)

## Provenance

- CNA: Linux: https://www.cve.org/CVERecord?id=CVE-2022-49835; retrieved 2026-11-05; source updated 2026-11-05

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2022-49835; retrieved 2026-11-05; source updated Not reported

Revision: a30695629206d3866ebbc03bfd7a238b4a5b721446f76a8bfb8baf094132082f

Canonical: https://y2.dev/cve/CVE-2022-49835

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