Follow @Openwall on Twitter for new release announcements and other news
[<prev] [next>] [day] [month] [year] [list]
Date: Fri, 1 Feb 2019 23:20:26 +0100
From: Jann Horn <>
Subject: Linux kernel: BPF spectre v1 mitigation bypass (CVE-2019-7308, fixed
 in 4.19.19 and 4.20.6)

I discovered a bypass for the spectre v1 hardening in the eBPF engine
of the Linux kernel (which is exposed to unprivileged userspace since
kernel 4.4).

This is CVE-2019-7308. The issue has been fixed in 4.19.19 and 4.20.6
stable so far.

The main fix is
, but it depends both on its parent commits and one ancestor that
fixes a new issue introduced by it.

Full bug report is at

Powered by blists - more mailing lists

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.