Bugzilla – Bug 1198445
VUL-1: CVE-2021-39802: kernel-source: local privilege escalation in change_pte_range of mprotect.c
Last modified: 2022-04-13 10:58:35 UTC
In change_pte_range of mprotect.c , there is a possible way to make a shared
mmap writable due to a permissions bypass. This could lead to local escalation
of privilege with no additional execution privileges needed. User interaction is
not needed for exploitation.
Android-only issue, the patch introducing the vulnerability was never merged in Linus' tree due to security concerns .
Our product are not affected. Closing.