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CVE-2026-43092

· Published 06/05/2026 10:16 · Modified 06/05/2026 13:08

Labels: CVE-2026-43092 2026-05-06416baaa9-dc9f-4396-8d5f-8c081fb06d67CVE-2026-43092

Essential information

Published
06/05/2026 10:16
Modified
06/05/2026 13:08
Author
Creator
CISA KEV
No
CWE

Description

In the Linux kernel, the following vulnerability has been resolved: xsk: validate MTU against usable frame size on bind AF_XDP bind currently accepts zero-copy pool configurations without verifying that the device MTU fits into the usable frame space provided by the UMEM chunk. This becomes a problem since we started to respect tailroom which is subtracted from chunk_size (among with headroom). 2k chunk size might not provide enough space for standard 1500 MTU, so let us catch such settings at bind time. Furthermore, validate whether underlying HW will be able to satisfy configured MTU wrt XSK's frame size multiplied by supported Rx buffer chain length (that is exposed via net_device::xdp_zc_max_segs).

NVD status

Status
Awaiting Analysis — CVE has been recently published to the CVE List and has been received by the NVD.
Source
416baaa9-dc9f-4396-8d5f-8c081fb06d67
NVD
View on NVD

Affected products (CPE)

ProductCPE
linux / linux kernel cpe:2.3:a:linux:linux_kernel:*:*:*:*:*:*:*:*

References