In the Linux kernel, the following vulnerability has been resolved: bpf: Compare iterator types during state pruning An iterator stack slot can be MEM_RCU or PTR_UNTRUSTED.

Code

The project this record applies to. Exploit listings stay in References.

• Repository · git.kernel.org
• Repository · git.kernel.org
• Repository · git.kernel.org

Timeline

Detection, updates, and resolution for this record.

1. Sep 17, 2026 · NIST NVD

   Detected

   In the Linux kernel, the following vulnerability has been resolved: bpf: Compare iterator types during state pruning An iterator stack slot can be MEM_RCU or PTR_UNTRUSTED. These states must not be equal, or the verifier can prune an unsafe path. Compare the pointer type for STACK_ITER slots.

2. Oct 15, 2026 · NIST NVD

   Updated

   In the Linux kernel, the following vulnerability has been resolved: bpf: Compare iterator types during state pruning An iterator stack slot can be MEM_RCU or PTR_UNTRUSTED. These states must not be equal, or the verifier can prune an unsafe path. Compare the pointer type for STACK_ITER slots.

Sources

• CVE.orgVulnerability recordCVE-2026-90217

  Official CVE identifier

  cve.org
• FIRST EPSSExploitation probabilityCVE-2026-90217

  30-day exploitation probability 0.2%

  first.org
• NIST NVDVulnerability recordCVE-2026-90217

  In the Linux kernel, the following vulnerability has been resolved: bpf: Compare iterator types during state pruning An iterator stack slot can be MEM_RCU or PTR_UNTRUSTED. These states must not be equal, or the verifier can prune an unsafe path. Compare the pointer type for S

  nvd.nist.gov

References

• Reference · git.kernel.org
• Reference · git.kernel.org
• Reference · git.kernel.org