CVE-2021-25411

Improper address validation vulnerability in RKP api prior to SMR JUN-2021 Release 1 allows root privileged local attackers to write read-only kernel memory...

Grsecurity problem - modifying "read-only kernel"

Affected: Grsecurityand maybe other linux hardening patchs. Description: Grsecurity and maybe other linux hardening patchs integrates a variant of the patch published in phrack p58-0x07 article supposed to forbid writing to /dev/mem and /dev/kmem by disabling function dowritemem. This is done by...