# CVE-2026-72241: leds: uleds: Fix potential buffer overread

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

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

leds: uleds: Fix potential buffer overread

The name string supplied by userspace is not guaranteed to be
null-terminated, so using strchr() on it might result in a buffer
overread. The same thing will happen when said string is used by
the LED class device.

Fix this by using strnchr() instead and explicitly check that
the name string is properly null-terminated.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Linux / Linux: ≥ e381322b0190c1253d347de3f28b5c37756fb651; < a84c59121dfdc7b324f72dc5012aa8fe5e7d2d7b (affected, git); ≥ e381322b0190c1253d347de3f28b5c37756fb651; < 5bb89e23729f3a59592d699a437bb001f24b8f67 (affected, git); ≥ e381322b0190c1253d347de3f28b5c37756fb651; < 5ad6f6c9209e5777b896def9876708853ae26d0d (affected, git); ≥ e381322b0190c1253d347de3f28b5c37756fb651; < 8bf529571cca60fb8af65d6d034bdbbc99a9127c (affected, git); ≥ e381322b0190c1253d347de3f28b5c37756fb651; < a91ac9fdac7385cbc98aeae55b4e5302125497a2 (affected, git); ≥ e381322b0190c1253d347de3f28b5c37756fb651; < 6dd51d84a9502553e58beade72823258871b8111 (affected, git); ≥ e381322b0190c1253d347de3f28b5c37756fb651; < 263ccdd627caeda6e980ed3c6e32bb4fd6b380b1 (affected, git); ≥ e381322b0190c1253d347de3f28b5c37756fb651; < c19fe864f667afc49d1391d764e20b66555bcf7a (affected, git). Source: CNA: Linux
- Linux / Linux: 4.10 (affected); ≥ 0; < 4.10 (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/a84c59121dfdc7b324f72dc5012aa8fe5e7d2d7b (CNA: Linux)

- https://git.kernel.org/stable/c/5bb89e23729f3a59592d699a437bb001f24b8f67 (CNA: Linux)

- https://git.kernel.org/stable/c/5ad6f6c9209e5777b896def9876708853ae26d0d (CNA: Linux)

- https://git.kernel.org/stable/c/8bf529571cca60fb8af65d6d034bdbbc99a9127c (CNA: Linux)

- https://git.kernel.org/stable/c/a91ac9fdac7385cbc98aeae55b4e5302125497a2 (CNA: Linux)

- https://git.kernel.org/stable/c/6dd51d84a9502553e58beade72823258871b8111 (CNA: Linux)

- https://git.kernel.org/stable/c/263ccdd627caeda6e980ed3c6e32bb4fd6b380b1 (CNA: Linux)

- https://git.kernel.org/stable/c/c19fe864f667afc49d1391d764e20b66555bcf7a (CNA: Linux)

- https://git.kernel.org/stable/c/263ccdd627caeda6e980ed3c6e32bb4fd6b380b1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/5ad6f6c9209e5777b896def9876708853ae26d0d (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/5bb89e23729f3a59592d699a437bb001f24b8f67 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/6dd51d84a9502553e58beade72823258871b8111 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/8bf529571cca60fb8af65d6d034bdbbc99a9127c (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/a84c59121dfdc7b324f72dc5012aa8fe5e7d2d7b (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/a91ac9fdac7385cbc98aeae55b4e5302125497a2 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/c19fe864f667afc49d1391d764e20b66555bcf7a (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

## Provenance

- CNA: Linux: https://www.cve.org/CVERecord?id=CVE-2026-72241; retrieved 2026-11-06; source updated 2026-11-06

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-72241; retrieved 2026-11-06; source updated 2026-11-06

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-72241; retrieved 2026-11-06; source updated Not reported

Revision: eb18cbba2315f755693214577ec3990f7600aeb8a5a9a6ec4191b8b9137d27ed

Canonical: https://y2.dev/cve/CVE-2026-72241

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