CVE-2026-72236

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux212188a596d17d519842ef2173150315735b54e1 < 27206bb57c47bdbe33bccc78fa7f7e2a719a06b9affected
LinuxLinux212188a596d17d519842ef2173150315735b54e1 < a21f3615c88421df81060b6ff89220fd34094c4daffected
LinuxLinux212188a596d17d519842ef2173150315735b54e1 < fa1ebae4206e6afc8caa642e9eb1bbe39a9a724faffected
LinuxLinux212188a596d17d519842ef2173150315735b54e1 < f79dff8c721bbb1f3fc312ea55e0551c2cc28801affected
LinuxLinux212188a596d17d519842ef2173150315735b54e1 < 49145bce539117db4b6e9e83c0e5ef528e361050affected
LinuxLinux3.4affected
LinuxLinux0 < 3.4unaffected
LinuxLinux6.6.145 <= 6.6.*unaffected
LinuxLinux6.12.97 <= 6.12.*unaffected
LinuxLinux6.18.40 <= 6.18.*unaffected
LinuxLinux7.1.5 <= 7.1.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References