144ac5abaSVegard Nossum.. _securitybugs: 244ac5abaSVegard Nossum 344ac5abaSVegard NossumSecurity bugs 444ac5abaSVegard Nossum============= 544ac5abaSVegard Nossum 644ac5abaSVegard NossumLinux kernel developers take security very seriously. As such, we'd 744ac5abaSVegard Nossumlike to know when a security bug is found so that it can be fixed and 844ac5abaSVegard Nossumdisclosed as quickly as possible. Please report security bugs to the 944ac5abaSVegard NossumLinux kernel security team. 1044ac5abaSVegard Nossum 1144ac5abaSVegard NossumContact 1244ac5abaSVegard Nossum------- 1344ac5abaSVegard Nossum 1444ac5abaSVegard NossumThe Linux kernel security team can be contacted by email at 1544ac5abaSVegard Nossum<security@kernel.org>. This is a private list of security officers 1644ac5abaSVegard Nossumwho will help verify the bug report and develop and release a fix. 1744ac5abaSVegard NossumIf you already have a fix, please include it with your report, as 1844ac5abaSVegard Nossumthat can speed up the process considerably. It is possible that the 1944ac5abaSVegard Nossumsecurity team will bring in extra help from area maintainers to 2044ac5abaSVegard Nossumunderstand and fix the security vulnerability. 2144ac5abaSVegard Nossum 2244ac5abaSVegard NossumAs it is with any bug, the more information provided the easier it 2344ac5abaSVegard Nossumwill be to diagnose and fix. Please review the procedure outlined in 2444ac5abaSVegard Nossum'Documentation/admin-guide/reporting-issues.rst' if you are unclear about what 2544ac5abaSVegard Nossuminformation is helpful. Any exploit code is very helpful and will not 2644ac5abaSVegard Nossumbe released without consent from the reporter unless it has already been 2744ac5abaSVegard Nossummade public. 2844ac5abaSVegard Nossum 2944ac5abaSVegard NossumPlease send plain text emails without attachments where possible. 3044ac5abaSVegard NossumIt is much harder to have a context-quoted discussion about a complex 3144ac5abaSVegard Nossumissue if all the details are hidden away in attachments. Think of it like a 3244ac5abaSVegard Nossum:doc:`regular patch submission <../process/submitting-patches>` 3344ac5abaSVegard Nossum(even if you don't have a patch yet): describe the problem and impact, list 3444ac5abaSVegard Nossumreproduction steps, and follow it with a proposed fix, all in plain text. 3544ac5abaSVegard Nossum 3644ac5abaSVegard NossumDisclosure and embargoed information 3744ac5abaSVegard Nossum------------------------------------ 3844ac5abaSVegard Nossum 3944ac5abaSVegard NossumThe security list is not a disclosure channel. For that, see Coordination 4044ac5abaSVegard Nossumbelow. 4144ac5abaSVegard Nossum 4244ac5abaSVegard NossumOnce a robust fix has been developed, the release process starts. Fixes 4344ac5abaSVegard Nossumfor publicly known bugs are released immediately. 4444ac5abaSVegard Nossum 4544ac5abaSVegard NossumAlthough our preference is to release fixes for publicly undisclosed bugs 4644ac5abaSVegard Nossumas soon as they become available, this may be postponed at the request of 4744ac5abaSVegard Nossumthe reporter or an affected party for up to 7 calendar days from the start 4844ac5abaSVegard Nossumof the release process, with an exceptional extension to 14 calendar days 4944ac5abaSVegard Nossumif it is agreed that the criticality of the bug requires more time. The 5044ac5abaSVegard Nossumonly valid reason for deferring the publication of a fix is to accommodate 5144ac5abaSVegard Nossumthe logistics of QA and large scale rollouts which require release 5244ac5abaSVegard Nossumcoordination. 5344ac5abaSVegard Nossum 5444ac5abaSVegard NossumWhile embargoed information may be shared with trusted individuals in 5544ac5abaSVegard Nossumorder to develop a fix, such information will not be published alongside 5644ac5abaSVegard Nossumthe fix or on any other disclosure channel without the permission of the 5744ac5abaSVegard Nossumreporter. This includes but is not limited to the original bug report 5844ac5abaSVegard Nossumand followup discussions (if any), exploits, CVE information or the 5944ac5abaSVegard Nossumidentity of the reporter. 6044ac5abaSVegard Nossum 6144ac5abaSVegard NossumIn other words our only interest is in getting bugs fixed. All other 6244ac5abaSVegard Nossuminformation submitted to the security list and any followup discussions 6344ac5abaSVegard Nossumof the report are treated confidentially even after the embargo has been 6444ac5abaSVegard Nossumlifted, in perpetuity. 6544ac5abaSVegard Nossum 664fee0915SGreg Kroah-HartmanCoordination with other groups 674fee0915SGreg Kroah-Hartman------------------------------ 6844ac5abaSVegard Nossum 694fee0915SGreg Kroah-HartmanThe kernel security team strongly recommends that reporters of potential 704fee0915SGreg Kroah-Hartmansecurity issues NEVER contact the "linux-distros" mailing list until 714fee0915SGreg Kroah-HartmanAFTER discussing it with the kernel security team. Do not Cc: both 724fee0915SGreg Kroah-Hartmanlists at once. You may contact the linux-distros mailing list after a 734fee0915SGreg Kroah-Hartmanfix has been agreed on and you fully understand the requirements that 744fee0915SGreg Kroah-Hartmandoing so will impose on you and the kernel community. 754fee0915SGreg Kroah-Hartman 764fee0915SGreg Kroah-HartmanThe different lists have different goals and the linux-distros rules do 774fee0915SGreg Kroah-Hartmannot contribute to actually fixing any potential security problems. 7844ac5abaSVegard Nossum 7944ac5abaSVegard NossumCVE assignment 8044ac5abaSVegard Nossum-------------- 8144ac5abaSVegard Nossum 82*3c1897aeSGreg Kroah-HartmanThe security team does not assign CVEs, nor do we require them for 83*3c1897aeSGreg Kroah-Hartmanreports or fixes, as this can needlessly complicate the process and may 84*3c1897aeSGreg Kroah-Hartmandelay the bug handling. If a reporter wishes to have a CVE identifier 85*3c1897aeSGreg Kroah-Hartmanassigned, they should find one by themselves, for example by contacting 86*3c1897aeSGreg Kroah-HartmanMITRE directly. However under no circumstances will a patch inclusion 87*3c1897aeSGreg Kroah-Hartmanbe delayed to wait for a CVE identifier to arrive. 8844ac5abaSVegard Nossum 8944ac5abaSVegard NossumNon-disclosure agreements 9044ac5abaSVegard Nossum------------------------- 9144ac5abaSVegard Nossum 9244ac5abaSVegard NossumThe Linux kernel security team is not a formal body and therefore unable 9344ac5abaSVegard Nossumto enter any non-disclosure agreements. 94