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Author SHA1 Message Date
Daniel Micay
f949698c7a note that MPK-based hardening is off by default 2018-11-03 03:15:42 -04:00
Daniel Micay
f2a7ccde75 add basic overview of part of the approach to MTE 2018-11-03 03:09:03 -04:00
Daniel Micay
1da51ddde1 migrate bool configuration options out of config.h 2018-11-02 21:35:09 -04:00
Daniel Micay
4ac2688d76 add support for slab metadata count field 2018-11-01 04:49:27 -04:00
Daniel Micay
834ce67884 make canary generation consistent 2018-10-30 19:23:40 -04:00
Daniel Micay
c29a183687 reduce overhead of slot randomization 2018-10-30 18:58:04 -04:00
Daniel Micay
ceffb1a0ec simplify get_free_slot loops 2018-10-30 16:37:23 -04:00
Daniel Micay
a02f4ebb19 add missing deallocate_small thread_seal_metadata 2018-10-28 23:23:54 -04:00
Daniel Micay
5bee717134 use -march=native by default with a disable toggle 2018-10-28 22:49:15 -04:00
Daniel Micay
00915521a3 check canary before zeroing as an optimization 2018-10-28 21:07:35 -04:00
Daniel Micay
6f30211da8 some clarifications for the README 2018-10-28 20:28:10 -04:00
Daniel Micay
b99ab8a47a no need to artificially limit sealing to x86_64 2018-10-24 03:09:04 -04:00
Daniel Micay
e985afe0e1 document relatively high performance cost of MPK 2018-10-23 19:38:48 -04:00
Daniel Micay
4cd61e281d add workaround for bug in Linux MPK implementation 2018-10-23 19:08:33 -04:00
Daniel Micay
299bd6d414 add missing thread unseal / seal for atfork hooks 2018-10-23 16:28:54 -04:00
Daniel Micay
9d1567ce16 make safe_flag check compatible with POSIX sh 2018-10-23 15:55:45 -04:00
Daniel Micay
59def67979 add inlined check for -1 with pkey_set 2018-10-23 08:00:34 -04:00
Daniel Micay
05ac717cf2 work around -Wcast-align=strict error with old GCC 2018-10-23 07:23:07 -04:00
Daniel Micay
0b963078d5 guard metadata with Memory Protection Keys (MPK) 2018-10-23 01:11:31 -04:00
Daniel Micay
ac8c68de53 enable pointer cast warnings 2018-10-21 15:50:26 -04:00
Daniel Micay
9a43302868 add enforce_init call to other realloc code path 2018-10-20 02:27:06 -04:00
Daniel Micay
6a408ad017 add init calls to malloc_enable/malloc_disable 2018-10-19 21:46:36 -04:00
Daniel Micay
173ed53539 use consistent code style in chacha.c 2018-10-19 17:09:41 -04:00
Daniel Micay
1d2c10f5bb tweak canary awareness in offset test 2018-10-19 16:19:29 -04:00
Daniel Micay
64b655f062 set scope of planned metadata protection 2018-10-18 20:35:25 -04:00
Daniel Micay
e37b36c9dd update configuration documentation again 2018-10-18 20:18:55 -04:00
Daniel Micay
f0a6f551eb tweak code style 2018-10-18 19:35:21 -04:00
Daniel Micay
cf053e74d1 metadata region unification is completed 2018-10-18 16:10:49 -04:00
Daniel Micay
1e03b004f5 move slab_info to main metadata region 2018-10-18 16:01:04 -04:00
Daniel Micay
3f1962dd2b use min macro for realloc copy size 2018-10-18 15:25:14 -04:00
Daniel Micay
fe30f6c2ea delay allocating slab metadata from reservation 2018-10-18 15:20:42 -04:00
Daniel Micay
74139112d0 explain the purpose of CONFIG_CXX_ALLOCATOR 2018-10-18 14:57:33 -04:00
Daniel Micay
64e9f6797a use offsetof for allocator_state memory protection 2018-10-16 15:52:41 -04:00
Daniel Micay
67ada4d309 document padding for allocator state 2018-10-15 19:10:36 -04:00
Daniel Micay
da8e9aa1d8 document allocator state region 2018-10-15 15:44:31 -04:00
Daniel Micay
1c9e0d88a5 use the initial region table slots again 2018-10-15 15:18:45 -04:00
Daniel Micay
da0df69d22 move region hash tables into main state region 2018-10-15 15:07:59 -04:00
Daniel Micay
1e5dec97e0 move slab allocator state into main state region 2018-10-15 14:58:22 -04:00
Daniel Micay
e8eca2d430 explain the production-oriented design rationale 2018-10-15 04:07:20 -04:00
Daniel Micay
fde9fc2ece protect region allocator state with random guards 2018-10-14 22:41:17 -04:00
Daniel Micay
124d958da1 document free slabs quarantine 2018-10-14 22:19:10 -04:00
Daniel Micay
3504465584 document progress on protected allocator state 2018-10-14 22:15:48 -04:00
Daniel Micay
da6fd5b5ef move slab allocator state to a dedicated mapping 2018-10-14 22:06:38 -04:00
Daniel Micay
1190966846 rename region_info to region_metadata 2018-10-14 22:06:38 -04:00
Daniel Micay
a083ff79e1 move region allocator state to a dedicated mapping 2018-10-14 22:06:33 -04:00
Daniel Micay
d728afae8e add configuration option for testing with UBSan 2018-10-14 18:58:54 -04:00
Daniel Micay
535466fdfd avoid undefined shifts with multi-word bitmaps 2018-10-14 18:58:17 -04:00
Daniel Micay
7798b2693e fix loop exit condition boundary for get_free_slot 2018-10-14 18:49:48 -04:00
Daniel Micay
3c0a448c3e enable more tidy checks 2018-10-14 18:33:40 -04:00
Daniel Micay
9ea2fd6667 write_after_free_check only reads data 2018-10-14 18:30:20 -04:00