Medium 5.5Published Jun 24, 2026

CVE-2026-53099bpf: Switch CONFIG_CFI_CLANG to CONFIG_CFI

Updated under an hour ago (Oct 28, 2026, 4:40 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: bpf: Switch CONFIG_CFI_CLANG to CONFIG_CFI This was renamed in commit 23ef9d439769 ("kcfi: Rename CONFIG_CFI_CLANG to CONFIG_CFI") as it is now a compiler-agnostic option. Using the wrong name results in the code getting compiled out. Meaning the CFI failures for btf_dtor_kfunc_t would still trigger.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: Jun 24, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 99fde4d0626176d03cea35c64a063df73816e64d before f74fce43dbc059e059b5346a670f697c0e97b1d0; 99fde4d0626176d03cea35c64a063df73816e64d builds before 9b0cf064ea0a6bac5e1a5fb43b004fd52fbe2b3b	CNA record
linux linux_kernel linux:linux_kernel	from 7.0 before 7.0.10	NVD

References

References

https://git.kernel.org/stable/c/f74fce43dbc059e059b5346a670f697c0e97b1d0	patch
https://git.kernel.org/stable/c/9b0cf064ea0a6bac5e1a5fb43b004fd52fbe2b3b	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.