Draft: Fix local privileges escalation in kernel/bpf/verifier.c
Bugzilla: https://bugzilla.redhat.com/2053108
CVE: CVE-2022-23222
A flaw was found in the Linux kernel's adjust_ptr_min_max_vals in the kernel/bpf/verifier.c function. In this flaw, a missing sanity check for *_OR_NULL pointer types that perform pointer arithmetic may cause a kernel information leak issue.
Adding the fix plus dependency commits.
Signed-off-by: Jiri Olsa jolsa@redhat.com