Exploit for Missing Release of Memory after Effective Lifetime in Linux Linux_Kernel

Proof-of-concept exploit for CVE-2026-53365. CVSS 7.8.

Published 16 Oct 2026Updated 16 Oct 202637 sources
CVSS 7.8 PoC CANDIDATE

What happened

Reference-count underflow in Linux kernel io_uring zerocopy send path over AF_VSOCK.

Affected versions

Unknown product: See original advisory Fixed: See vendor advisory.

Why it matters

This source correlation may provide earlier visibility while structured CVE metadata is still being updated.

Detection & mitigation

  • Review the original advisory and validate affected versions.
  • Apply vendor-provided updates or mitigations when available.

Public PoC references