{"id":"CVE-2015-4170","details":"Race condition in the ldsem_cmpxchg function in drivers/tty/tty_ldsem.c in the Linux kernel before 3.13-rc4-next-20131218 allows local users to cause a denial of service (ldsem_down_read and ldsem_down_write deadlock) by establishing a new tty thread during shutdown of a previous tty thread.","modified":"2026-01-27T04:15:02.909626Z","published":"2016-05-02T10:59:12Z","withdrawn":"2026-01-27T04:15:02.909626Z","references":[{"type":"ADVISORY","url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cf872776fc84128bb779ce2b83a37c884c3203ae"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2016:1395"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1218879"},{"type":"FIX","url":"https://github.com/torvalds/linux/commit/cf872776fc84128bb779ce2b83a37c884c3203ae"},{"type":"FIX","url":"https://www.kernel.org/pub/linux/kernel/next/patch-v3.13-rc4-next-20131218.xz"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2015/05/26/1"},{"type":"WEB","url":"http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html"},{"type":"WEB","url":"http://www.securityfocus.com/bid/74820"}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}