Not yet scoredPublished Aug 15, 2026

CVE-2026-72236s390/perf_cpum_cf: Add missing array_index_nospec() to __hw_perf_event_init()

Updated under an hour ago (Oct 27, 2026, 7:20 PM 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: s390/perf_cpum_cf: Add missing array_index_nospec() to __hw_perf_event_init() ev variable is userspace controlled via event->attr.config and used as an array index after bounds checking, but without speculation barriers. Add the missing array_index_nospec() call to prevent speculative execution.

CVSS: Not yet scored
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: Received
Record last updated: Aug 23, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	212188a596d17d519842ef2173150315735b54e1 builds before 4c249b214c686f9a1c4cf4f32893b59b189e897a; 212188a596d17d519842ef2173150315735b54e1 builds before 27206bb57c47bdbe33bccc78fa7f7e2a719a06b9; from 212188a596d17d519842ef2173150315735b54e1 before a21f3615c88421df81060b6ff89220fd34094c4d; from 212188a596d17d519842ef2173150315735b54e1 before fa1ebae4206e6afc8caa642e9eb1bbe39a9a724f; from 212188a596d17d519842ef2173150315735b54e1 before f79dff8c721bbb1f3fc312ea55e0551c2cc28801; 212188a596d17d519842ef2173150315735b54e1 builds before 49145bce539117db4b6e9e83c0e5ef528e361050	CNA record

References

References

https://git.kernel.org/stable/c/4c249b214c686f9a1c4cf4f32893b59b189e897a
https://git.kernel.org/stable/c/27206bb57c47bdbe33bccc78fa7f7e2a719a06b9
https://git.kernel.org/stable/c/a21f3615c88421df81060b6ff89220fd34094c4d
https://git.kernel.org/stable/c/fa1ebae4206e6afc8caa642e9eb1bbe39a9a724f
https://git.kernel.org/stable/c/f79dff8c721bbb1f3fc312ea55e0551c2cc28801
https://git.kernel.org/stable/c/49145bce539117db4b6e9e83c0e5ef528e361050

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.