Git-Mirrors/hardened_malloc
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267 Commits 4 Branches 774 Tags 2.6 MiB
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Commit Graph

147 Commits

Author SHA1 Message Date
Daniel Micay
f3623e1f2b finish migration away from config.h 2018-11-16 15:40:45 -05:00
Daniel Micay
06149aa156 enable readability-else-after-return tidy check 2018-11-16 15:12:10 -05:00
Daniel Micay
58c7079db9 eliminate unnecessary code duplication in calloc 2018-11-16 15:01:09 -05:00
Daniel Micay
a617f7604d switch malloc_enable to enforce_init 2018-11-12 05:37:20 -05:00
Daniel Micay
3a488c9a27 add initial slab allocation quarantine 2018-11-05 16:43:08 -05:00
Daniel Micay
fea335282a use slab_region_start for init checks 2018-11-05 03:56:55 -05:00
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
00915521a3 check canary before zeroing as an optimization 2018-10-28 21:07:35 -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
59def67979 add inlined check for -1 with pkey_set 2018-10-23 08:00:34 -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
f0a6f551eb tweak code style 2018-10-18 19:35:21 -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
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
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
fde9fc2ece protect region allocator state with random guards 2018-10-14 22:41:17 -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
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
9ea2fd6667 write_after_free_check only reads data 2018-10-14 18:30:20 -04:00
Daniel Micay
d35674c67e expected_size is not an output parameter 2018-10-14 18:28:01 -04:00
Daniel Micay
4fbfe4d3ec fix canary space reservation for pvalloc 2018-10-14 17:49:36 -04:00
Daniel Micay
f11c448a0d slightly reorganize slab metadata 2018-10-14 15:13:06 -04:00
Daniel Micay
3db3e167ed remove usage of ATOMIC_VAR_INIT 
This was never truly required in practice and has been officially
obsoleted in C17.
 2018-10-13 16:50:49 -04:00
Daniel Micay
65a7014b48 randomize free slabs reuse 2018-10-13 13:57:00 -04:00
Daniel Micay
83df37436d fix usage of pthread_atfork for glibc < 2.28 2018-10-12 16:03:15 -04:00
Daniel Micay
6669166fe9 move memory_unmap outside of lock scope 2018-10-12 15:06:51 -04:00
Daniel Micay
b2007ad3d9 implement randomization for the region quarantine 2018-10-12 15:03:59 -04:00
Daniel Micay
ac2b940f0f fix compatibility with older GCC versions 
Avoid relying on compiler extensions supporting more flexible usage of
constants closer to how it works in C++.
 2018-10-11 18:12:49 -04:00
Daniel Micay
ddcdd9423c make the memory mapping quarantine more efficient 2018-10-09 14:13:59 -04:00
Daniel Micay
5fa6e01929 clearer name for MREMAP_MAYMOVE threshold 2018-10-08 17:18:13 -04:00
Daniel Micay
1a10c17e8b add quarantine for large allocations 2018-10-08 16:14:07 -04:00
Daniel Micay
cc9699f1b4 use multi-word bitmap to support up to 256 slots 2018-10-07 18:50:06 -04:00
Daniel Micay
5e2f03296e remove old debugging code 2018-10-07 16:18:17 -04:00
Daniel Micay
348f9fa557 add configuration for frequency of guard slabs 2018-10-06 15:36:03 -04:00