EUVD-2026-24592

In order to apply a particular protection key to an address range, the kernel must update the corresponding page table entries. The subroutine which handled this failed to take into account the presence of 1GB largepage mappings created using the shmcreatelargepage3 interface. In particular, it...

CVE-2026-6386

CVE-2026-6386: FreeBSD kernels with amd64 shmlargepage handling miss in pmap_pkru_update_range() fail to account for 1GB largepage mappings. An unprivileged user could cause the kernel to treat userspace memory as a page-table page, enabling overwrite of memory otherwise inaccessible. Impact desc...

CVE-2026-6386 Missing large page handling in pmap_pkru_update_range()

In order to apply a particular protection key to an address range, the kernel must update the corresponding page table entries. The subroutine which handled this failed to take into account the presence of 1GB largepage mappings created using the shmcreatelargepage3 interface. In particular, it...

PT-2026-34242

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the kernel's handling of protection keys for address ranges. The subroutine responsible for updating page table entries fails to account for 1GB largepage mappings creat...

FreeBSD Security Advisory - FreeBSD-SA-26:11.amd64

FreeBSD Security Advisory - In order to apply a particular protection key to an address range, the kernel must update the corresponding page table entries. The subroutine which handled this failed to take into account the presence of 1GB largepage mappings created using the shmcreatelargepage3...