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Review reviewHigh

CVE-2026-53094

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix stale offload->prog pointer after constant blinding When a dev-bound-only BPF program (BPF_F_XDP_DEV_BOUND_ONLY) undergoes JIT compilation with constant blinding enabled (bpf_jit_harden >= 2), bpf_jit_blind_constants() clones the program. The original prog is then freed in bpf_jit_prog_release_other(), which updates aux->prog to point to the surviving clone, but fails to update offload->prog. This leaves offload->prog pointing to the freed original program. When the network namespace is subsequently destroyed, clea...

CVSS
7.8
EPSS
0.13%
2.90% percentile
CISA KEV
Not listed
Published
2026.06.25
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.13%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix stale offload->prog pointer after constant blinding When a dev-bound-only BPF program (BPF_F_XDP_DEV_BOUND_ONLY) undergoes JIT compilation with constant blinding enabled (bpf_jit_harden >= 2), bpf_jit_blind_constants() clones the program. The original prog is then freed in bpf_jit_prog_release_other(), which updates aux->prog to point to the surviving clone, but fails to update offload->prog. This leaves offload->prog pointing to the freed original program. When the network namespace is subsequently destroyed, clea...

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 2b3486bc2d237ec345b3942b7be5deabf8c8fed1 < a713b72ff88cdab4d5d692908ab1259ada511f4d, >= 2b3486bc2d237ec345b3942b7be5deabf8c8fed1 < 25484c39d1ec82a0368798d956da3de5039b3fe8, >= 2b3486bc2d237ec345b3942b7be5deabf8c8fed1 < 059525cf18e69a9313baf947d8898c6ee7ca6b65, >= 2b3486bc2d237ec345b3942b7be5deabf8c8fed1 < c79f8503d83d4665be461fb9e45e215d0380c67b, >= 2b3486bc2d237ec345b3942b7be5deabf8c8fed1 < a1aa9ef47c299c5bbc30594d3c2f0589edf908e6, >= 6.3, >= 6.3 < 6.6.141, >= 6.7 < 6.12.91, >= 6.13 < 6.18.33, >= 6.19 < 7.0.10
Fixed versions
6.6.141, 6.12.91, 6.18.33, 7.0.10

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Not available
CVE-2026-53094 — Linux Linux, linux kernel | SECUFOCUS NOW