{"id":"CVE-2017-15126","aliases":["DEBIAN-CVE-2017-15126","EUVD-2017-6587","GHSA-v4mc-2f9f-5jw2","RHSA-2018:0676","RHSA-2018:1062","UBUNTU-CVE-2017-15126"],"status":"published","title":"A use-after-free flaw was found in fs/userfaultfd.c in the Linux kernel before 4.13.6. The issue...","description":"A use-after-free flaw was found in fs/userfaultfd.c in the Linux kernel before 4.13.6. The issue is related to the handling of fork failure when dealing with event messages. Failure to fork correctly can lead to a situation where a fork event will be removed from an already freed list of events with 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Failure to fork correctly can lead to a situation where a fork event will be removed from an already freed list of events with userfaultfd_ctx_put().","status":"published","published":"2018-01-14T06:29:00.217Z","modified":"2026-09-01T20:02:41.411993652Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:28.801885Z"},{"id":"RHSA-2018:0676","title":"Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update","status":"published","published":"2024-09-13T16:50:22Z","modified":"2026-06-29T10:19:37Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:04.822845Z"},{"id":"RHSA-2018:1062","title":"Red Hat Security Advisory: kernel security, bug fix, and enhancement update","status":"published","published":"2024-09-16T00:32:11Z","modified":"2026-06-29T10:19:39Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:04.822845Z"},{"id":"UBUNTU-CVE-2017-15126","description":"A use-after-free flaw was found in fs/userfaultfd.c in the Linux kernel before 4.13.6. The issue is related to the handling of fork failure when dealing with event messages. Failure to fork correctly can lead to a situation where a fork event will be removed from an already freed list of events with userfaultfd_ctx_put().","status":"published","published":"2018-01-14T06:29:00Z","modified":"2025-09-08T16:44:27Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"},{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:14.563448Z"}]}}