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CVE-2026-90217

bpf: Compare iterator types during state pruning

HIGH
7.8
CVSS Score
Published: September 17, 2026 at 04:07 PM UTC
Updated: October 21, 2026 at 01:20 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
90%
6.7dfab99df147b0d364f0c199f832ff2aedfb2265a
Vendor states this is fixed in 6424b9cde9edc7f2098115bbfd1ee3d84a958380 (fixed)
Vendor states this is fixed in 83608e303b95d07afba1c15da0b5d9e513c2f15a (fixed)
Vendor states this is fixed in 6.12.114 (unaffected)
Vendor states this is fixed in 6.18.57 (unaffected)
Vendor states this is fixed in 6.7 (unaffected)
Vendor states this is fixed in 7.2.6 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

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

CVSS

7.8HIGHLinux
Vector?

Quick Info

StatusRECEIVED

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