# CVE-2026-72274: fbdev: hecubafb: fix potential memory leak in hecubafb_probe()

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

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

fbdev: hecubafb: fix potential memory leak in hecubafb_probe()

The memory allocated for pagerefs in fb_deferred_io_init() is not freed
on the error path. Fix it by calling fb_deferred_io_cleanup().

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Linux / Linux: ≥ 186b89659c4c67cccead52961eab0ca3b23951dc; < 3eb2bc1009c2476426ffbaf642d7ac82f4685b4d (affected, git); ≥ 56c134f7f1b58be08bdb0ca8372474a4a5165f31; < 7de72f7534d961b117e0b051fa8798975036f5f3 (affected, git); ≥ 56c134f7f1b58be08bdb0ca8372474a4a5165f31; < 2952767e399e2796d45644ea50f442988d2bb02d (affected, git); ≥ 56c134f7f1b58be08bdb0ca8372474a4a5165f31; < 612ea3a8e525580aa82f26ab873e285f5caf9d99 (affected, git); ≥ 56c134f7f1b58be08bdb0ca8372474a4a5165f31; < d684ce2db92b1093bcca2b42e5160a5fe23eb496 (affected, git); ≥ 56c134f7f1b58be08bdb0ca8372474a4a5165f31; < 9a94b85531852eb86283eca36ab041782c6b3518 (affected, git); ≥ 56c134f7f1b58be08bdb0ca8372474a4a5165f31; < cbef2a305a8a72969b86f96b7c07b86edde61aff (affected, git); ≥ 5.15.149; < 5.15.212 (affected, semver). Source: CNA: Linux
- Linux / Linux: 5.19 (affected); ≥ 0; < 5.19 (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: 0.21% as of 2026-11-06; percentile 11.90%

- 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/3eb2bc1009c2476426ffbaf642d7ac82f4685b4d (CNA: Linux)

- https://git.kernel.org/stable/c/7de72f7534d961b117e0b051fa8798975036f5f3 (CNA: Linux)

- https://git.kernel.org/stable/c/2952767e399e2796d45644ea50f442988d2bb02d (CNA: Linux)

- https://git.kernel.org/stable/c/612ea3a8e525580aa82f26ab873e285f5caf9d99 (CNA: Linux)

- https://git.kernel.org/stable/c/d684ce2db92b1093bcca2b42e5160a5fe23eb496 (CNA: Linux)

- https://git.kernel.org/stable/c/9a94b85531852eb86283eca36ab041782c6b3518 (CNA: Linux)

- https://git.kernel.org/stable/c/cbef2a305a8a72969b86f96b7c07b86edde61aff (CNA: Linux)

- https://git.kernel.org/stable/c/2952767e399e2796d45644ea50f442988d2bb02d (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/3eb2bc1009c2476426ffbaf642d7ac82f4685b4d (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/612ea3a8e525580aa82f26ab873e285f5caf9d99 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/7de72f7534d961b117e0b051fa8798975036f5f3 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/9a94b85531852eb86283eca36ab041782c6b3518 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/cbef2a305a8a72969b86f96b7c07b86edde61aff (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/d684ce2db92b1093bcca2b42e5160a5fe23eb496 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

## Provenance

- CNA: Linux: https://www.cve.org/CVERecord?id=CVE-2026-72274; retrieved 2026-11-06; source updated 2026-11-06

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-72274; retrieved 2026-11-06; source updated 2026-11-06

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-72274; retrieved 2026-11-06; source updated Not reported

Revision: 785450d3cb5531a75a260ef11f78db726997f340733807b79b22adbcb2ab6236

Canonical: https://y2.dev/cve/CVE-2026-72274

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

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