CVE-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 STACK_ITER slots.

CVSS 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 6% of CVEs (scores of 2026-10-25)

Published

2026-09-17

Modified

2026-10-21

Record from

the NVD, synced 2026-10-22

References

• https://git.kernel.org/stable/c/6424b9cde9edc7f2098115bbfd1ee3d84a958380
• https://git.kernel.org/stable/c/83608e303b95d07afba1c15da0b5d9e513c2f15a
• https://git.kernel.org/stable/c/86bbaf9e6e4fa6c0dfb352e9e11fae328069233a
• https://git.kernel.org/stable/c/e4ab436d5ba61e4910fd49d24bb64ddb34d493d6

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