CVE-2026-89443

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Validate level in perf mask ioctls isstifgetperflevelmask and isstifgetbasefreqmask use the user-provided level as an index into perflevels via readpplevelinfo and readbflevelinfo, but neither helper validates...

EUVD-2026-76349

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Validate level in perf mask ioctls isstifgetperflevelmask and isstifgetbasefreqmask use the user-provided level as an index into perflevels via readpplevelinfo and readbflevelinfo, but neither helper validates...

CVE-2026-89443

This vulnerability affects the Linux kernel 's platform/x86 ISST (Intel Speed Select Technology) driver. The functions isst_if_get_perf_level_mask() and isst_if_get_base_freq_mask() use a user-provided level value as an index into the perf_levels[] array via _read_pp_level_info() and _read_bf_lev...

PT-2026-90159

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Validate level in perf mask ioctls isst if get perf level mask and isst if get base freq mask use the user-provided level as an index into perf levels via read pp level info and read bf level info, but neither...