FreeBSD source tree https://cgit-dev.freebsd.org/src/atom?h=releng%2F11.0 2016-07-18T16:34:11Z 2016-07-18T16:34:11Z Dmitry Chagin dchagin@FreeBSD.org 2016-07-18T16:34:11Z urn:sha1:ffa95dadf4849b70712c6765a500de1a36505542 Implement Linux personality() system call mainly due to READ_IMPLIES_EXEC flag. In Linux if this flag is set, PROT_READ implies PROT_EXEC for mmap(). Linux/i386 set this flag automatically if the binary requires executable stack. READ_IMPLIES_EXEC flag will be used in the next Linux mmap() commit. Approved by: re (gjb) 2016-05-21T08:01:14Z Dmitry Chagin dchagin@FreeBSD.org 2016-05-21T08:01:14Z urn:sha1:8cc96fb43a5fe09d52e584cc3dc1e5e27306c4c2 does not defined due to it's nature. MFC after: 1 week 2016-03-20T13:21:20Z Dmitry Chagin dchagin@FreeBSD.org 2016-03-20T13:21:20Z urn:sha1:99546279d612cfaf4ae5501f41785d37fda3b425 PR: 181012 Submitted by: John Wehle MFC after: 1 week 2016-01-14T10:13:58Z Gleb Smirnoff glebius@FreeBSD.org 2016-01-14T10:13:58Z urn:sha1:037f750877f04f57a316f597f2e0176fa1e19aab The set_robust_list system call request the kernel to record the head of the list of robust futexes owned by the calling thread. The head argument is the list head to record. The get_robust_list system call should return the head of the robust list of the thread whose thread id is specified in pid argument. The list head should be stored in the location pointed to by head argument. In contrast, our implemenattion of get_robust_list system call copies the known portion of memory pointed by recorded in set_robust_list system call pointer to the head of the robust list to the location pointed by head argument. So, it is possible for a local attacker to read portions of kernel memory, which may result in a privilege escalation. Submitted by: mjg Security: SA-16:03.linux 2015-10-22T21:28:20Z John Baldwin jhb@FreeBSD.org 2015-10-22T21:28:20Z urn:sha1:2f99bcce1ebf7f5723f98529176226dd9118e2a5 linux_syscallnames[] from linux_* to linux32_* to avoid conflicts with linux64.ko. While here, add support for linux64 binaries to systrace. - Update NOPROTO entries in amd64/linux/syscalls.master to match the main table to fix systrace build. - Add a special case for union l_semun arguments to the systrace generation. - The systrace_linux32 module now only builds the systrace_linux32.ko. module on amd64. - Add a new systrace_linux module that builds on both i386 and amd64. For i386 it builds the existing systrace_linux.ko. For amd64 it builds a systrace_linux.ko for 64-bit binaries. Reviewed by: markj Differential Revision: https://reviews.freebsd.org/D3954 2015-05-24T18:08:01Z Dmitry Chagin dchagin@FreeBSD.org 2015-05-24T18:08:01Z urn:sha1:9802eb9ebc04783e12038072f76156152851341e 2015-05-24T18:04:04Z Dmitry Chagin dchagin@FreeBSD.org 2015-05-24T18:04:04Z urn:sha1:e1ff74c0f7284439021e9776877b9350bd71c370 2015-05-24T18:00:14Z Dmitry Chagin dchagin@FreeBSD.org 2015-05-24T18:00:14Z urn:sha1:6e4c8004dc3f4da2000a225b46d69a39679395ff 2015-05-24T17:57:07Z Dmitry Chagin dchagin@FreeBSD.org 2015-05-24T17:57:07Z urn:sha1:19d8b461f4ae608e702f120b53396d63011af704 The patch developed by Jilles Tjoelker and Andrew Wilcox and adopted for lemul branch by me. 2015-05-24T17:38:02Z Dmitry Chagin dchagin@FreeBSD.org 2015-05-24T17:38:02Z urn:sha1:fcdffc03f80577070fad20ff11fa3c9c5c09328e Reported by: trinity