What is CVE-2026-43128?

CVE-2026-43128 is a high-severity vulnerability in Linux, classified under Double Free. CVSS score: 7.8/10. Published 2026-05-06.

How severe is CVE-2026-43128?

High severity. CVSS v3 base score is 7.8 out of 10.

Double Free in Linux

CVE-2026-43128

In the Linux kernel, the following vulnerability has been resolved: RDMA/umem: Fix double dma_buf_unpin in failure path In ib_umem_dmabuf_get_pinned_with_dma_device(), the call to ib_umem_dmabuf_map_pages() can fail. If this occurs, the…

Vulnerability class: Double Free

EPSS: 0.000 (2.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Linux — versions 1e4df4a21c5ac722df1099eee30cad9246c889b5, 5.16, 0
Linux Linux_kernel — versions 7.0

Weakness classification (CWE)

CWE-415 — Double Free

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)

Frequently asked questions

What is CVE-2026-43128?: CVE-2026-43128 is a high-severity vulnerability in Linux, classified under Double Free. CVSS score: 7.8/10. Published 2026-05-06.
How severe is CVE-2026-43128?: High severity. CVSS v3 base score is 7.8 out of 10.