** Description changed: tr3e wang discovered that an OOB write existed in the eBPF subsystem in the Linux kernel on BPF_RINGBUF. Mitigation commit: https://git.launchpad.net/~ubuntu- kernel/ubuntu/+source/linux/+git/impish/commit/?id=53fb7741ff9d546174dbb585957b4f8b6afbdb83 Mitigation: Disable unprivileged ebpf with: - $ sudo sysctl kernel.unprivileged_bpf_disabled=1 + $ sudo sysctl kernel.unprivileged_bpf_disabled=1 + + Unprivileged ebpf is disabled by default in Ubuntu 21.10 and newer. See + https://www.kernel.org/doc/html/latest/admin- + guide/sysctl/kernel.html#unprivileged-bpf-disabled for details on the + configuration setting.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1956585 Title: OOB write on BPF_RINGBUF To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1956585/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
