6 Linux kernel developers take security very seriously. As such, we'd
7 like to know when a security bug is found so that it can be fixed and
8 disclosed as quickly as possible. Please report security bugs to the
9 Linux kernel security team.
14 The Linux kernel security team can be contacted by email at
15 <security@kernel.org>. This is a private list of security officers
16 who will help verify the bug report and develop and release a fix.
17 If you already have a fix, please include it with your report, as
18 that can speed up the process considerably. It is possible that the
19 security team will bring in extra help from area maintainers to
20 understand and fix the security vulnerability.
22 As it is with any bug, the more information provided the easier it
23 will be to diagnose and fix. Please review the procedure outlined in
24 admin-guide/reporting-bugs.rst if you are unclear about what
25 information is helpful. Any exploit code is very helpful and will not
26 be released without consent from the reporter unless it has already been
32 The goal of the Linux kernel security team is to work with the bug
33 submitter to understand and fix the bug. We prefer to publish the fix as
34 soon as possible, but try to avoid public discussion of the bug itself
35 and leave that to others.
37 Publishing the fix may be delayed when the bug or the fix is not yet
38 fully understood, the solution is not well-tested or for vendor
39 coordination. However, we expect these delays to be short, measurable in
40 days, not weeks or months. A release date is negotiated by the security
41 team working with the bug submitter as well as vendors. However, the
42 kernel security team holds the final say when setting a timeframe. The
43 timeframe varies from immediate (esp. if it's already publicly known bug)
44 to a few weeks. As a basic default policy, we expect report date to
45 release date to be on the order of 7 days.
50 Fixes for sensitive bugs, such as those that might lead to privilege
51 escalations, may need to be coordinated with the private
52 <linux-distros@vs.openwall.org> mailing list so that distribution vendors
53 are well prepared to issue a fixed kernel upon public disclosure of the
54 upstream fix. Distros will need some time to test the proposed patch and
55 will generally request at least a few days of embargo, and vendor update
56 publication prefers to happen Tuesday through Thursday. When appropriate,
57 the security team can assist with this coordination, or the reporter can
58 include linux-distros from the start. In this case, remember to prefix
59 the email Subject line with "[vs]" as described in the linux-distros wiki:
60 <http://oss-security.openwall.org/wiki/mailing-lists/distros#how-to-use-the-lists>
65 The security team does not normally assign CVEs, nor do we require them
66 for reports or fixes, as this can needlessly complicate the process and
67 may delay the bug handling. If a reporter wishes to have a CVE identifier
68 assigned ahead of public disclosure, they will need to contact the private
69 linux-distros list, described above. When such a CVE identifier is known
70 before a patch is provided, it is desirable to mention it in the commit
73 Non-disclosure agreements
74 -------------------------
76 The Linux kernel security team is not a formal body and therefore unable
77 to enter any non-disclosure agreements.