CVE-2026-63824

A flaw was found in the Linux kernel's keyctlpkeyparamsget2 function within the KEYS subsystem. The vulnerability arises from an incorrect calculation of the internal output buffer's length, which can lead to a buffer overflow when a user-provided buffer is too small. This flaw could allow a loca...

CVE-2026-63824 KEYS: fix overflow in keyctl_pkey_params_get_2()

In the Linux kernel, the following vulnerability has been resolved: KEYS: fix overflow in keyctlpkeyparamsget2 The length for the internal output buffer is calculated incorrectly, which can result overflow when a too small buffer is provided. Fix the bug by allocating internal output with the siz...