CVE-2026-72236
Unknown
Description
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.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedAug 15, 2026
First seenAug 15, 2026
How to fix
Update
- Linux Linux4c249b214c686f9a1c4cf4f32893b59b189e897a, 27206bb57c47bdbe33bccc78fa7f7e2a719a06b9, a21f3615c88421df81060b6ff89220fd34094c4d, fa1ebae4206e6afc8caa642e9eb1bbe39a9a724f, f79dff8c721bbb1f3fc312ea55e0551c2cc28801, 49145bce539117db4b6e9e83c0e5ef528e361050 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 212188a596d17d519842ef2173150315735b54e1 ≤ v < 4c249b214c686f9a1c4cf4f32893b59b189e897a, 212188a596d17d519842ef2173150315735b54e1 ≤ v < 27206bb57c47bdbe33bccc78fa7f7e2a719a06b9, 212188a596d17d519842ef2173150315735b54e1 ≤ v < a21f3615c88421df81060b6ff89220fd34094c4d, 212188a596d17d519842ef2173150315735b54e1 ≤ v < fa1ebae4206e6afc8caa642e9eb1bbe39a9a724f, 212188a596d17d519842ef2173150315735b54e1 ≤ v < f79dff8c721bbb1f3fc312ea55e0551c2cc28801, 212188a596d17d519842ef2173150315735b54e1 ≤ v < 49145bce539117db4b6e9e83c0e5ef528e361050, 3.4 | 4c249b214c686f9a1c4cf4f32893b59b189e897a, 27206bb57c47bdbe33bccc78fa7f7e2a719a06b9, a21f3615c88421df81060b6ff89220fd34094c4d, fa1ebae4206e6afc8caa642e9eb1bbe39a9a724f, f79dff8c721bbb1f3fc312ea55e0551c2cc28801, 49145bce539117db4b6e9e83c0e5ef528e361050 |
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