CVE-2022-2905

Description

An out-of-bounds memory read flaw was found in the Linux kernel's BPF subsystem in how a user calls the bpf_tail_call function with a key larger than the max_entries of the map. This flaw allows a local user to gain unauthorized access to data.

References

https://bugzilla.redhat.com/show_bug.cgi?id=2121800

https://lore.kernel.org/bpf/[email protected]ogearbox.net/

https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html

Details