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Based on kernel version 4.16.1. Page generated on 2018-04-09 11:52 EST.

1	.. _securitybugs:
2	
3	Security bugs
4	=============
5	
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.
10	
11	Contact
12	-------
13	
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.
21	
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
27	made public.
28	
29	Disclosure
30	----------
31	
32	The goal of the Linux kernel security team is to work with the
33	bug submitter to bug resolution as well as disclosure.  We prefer
34	to fully disclose the bug as soon as possible.  It is reasonable to
35	delay disclosure when the bug or the fix is not yet fully understood,
36	the solution is not well-tested or for vendor coordination.  However, we
37	expect these delays to be short, measurable in days, not weeks or months.
38	A disclosure date is negotiated by the security team working with the
39	bug submitter as well as vendors.  However, the kernel security team
40	holds the final say when setting a disclosure date.  The timeframe for
41	disclosure is from immediate (esp. if it's already publicly known)
42	to a few weeks.  As a basic default policy, we expect report date to
43	disclosure date to be on the order of 7 days.
44	
45	Coordination
46	------------
47	
48	Fixes for sensitive bugs, such as those that might lead to privilege
49	escalations, may need to be coordinated with the private
50	<linux-distros@vs.openwall.org> mailing list so that distribution vendors
51	are well prepared to issue a fixed kernel upon public disclosure of the
52	upstream fix. Distros will need some time to test the proposed patch and
53	will generally request at least a few days of embargo, and vendor update
54	publication prefers to happen Tuesday through Thursday. When appropriate,
55	the security team can assist with this coordination, or the reporter can
56	include linux-distros from the start. In this case, remember to prefix
57	the email Subject line with "[vs]" as described in the linux-distros wiki:
58	<http://oss-security.openwall.org/wiki/mailing-lists/distros#how-to-use-the-lists>
59	
60	CVE assignment
61	--------------
62	
63	The security team does not normally assign CVEs, nor do we require them
64	for reports or fixes, as this can needlessly complicate the process and
65	may delay the bug handling. If a reporter wishes to have a CVE identifier
66	assigned ahead of public disclosure, they will need to contact the private
67	linux-distros list, described above. When such a CVE identifier is known
68	before a patch is provided, it is desirable to mention it in the commit
69	message, though.
70	
71	Non-disclosure agreements
72	-------------------------
73	
74	The Linux kernel security team is not a formal body and therefore unable
75	to enter any non-disclosure agreements.
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