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Author SHA1 Message Date
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
Daniel Micay
d35674c67e expected_size is not an output parameter 2018-10-14 18:28:01 -04:00
Daniel Micay
8b033c5e44 make ALIGNMENT_CEILING into a function 2018-10-14 18:23:42 -04:00
Daniel Micay
118549451b add tidy target to the Makefile for clang-tidy 2018-10-14 18:05:08 -04:00
Daniel Micay
b66ca56ba1 initialize ptr to nullptr in handle_out_of_memory 
It will break out of the loop in the first iteration if there's no
handler or the handler throws an out-of-memory error.
 2018-10-14 18:00:55 -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
0a64c7d6a1 document the randomized array in the quarantine 2018-10-12 15:10:35 -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
e47c783524 add test for delete size mismatch 2018-10-11 01:45:47 -04:00
Daniel Micay
7606bf4c1f clean up includes in new.cc 2018-10-11 01:35:25 -04:00
Daniel Micay
54c78fe1c2 distinguish between mmap / mremap errors 2018-10-10 19:05:35 -04:00
Daniel Micay
2381d973b1 expand on metadata address space security 2018-10-10 18:55:31 -04:00
Daniel Micay
29fd86ab37 document sized deallocation validation 2018-10-10 18:49:17 -04:00
Daniel Micay
c74fe56091 minor include style fix 2018-10-10 18:19:56 -04:00
Daniel Micay
ddcdd9423c make the memory mapping quarantine more efficient 2018-10-09 14:13:59 -04:00
Daniel Micay
57d5ab769b add write-after-free tests with potential reuse 2018-10-08 17:41:06 -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
fa2796a941 Makefile: add missing dependencies 2018-10-07 11:31:07 -04:00
Daniel Micay
cf07ae6007 update configuration in README 2018-10-06 15:38:09 -04:00
Daniel Micay
348f9fa557 add configuration for frequency of guard slabs 2018-10-06 15:36:03 -04:00
Daniel Micay
4ee12e64e0 configuration for guard region sizes 2018-10-06 15:17:55 -04:00
Daniel Micay
d18b05eaf4 avoid redundant checks for large realloc 2018-10-06 13:31:16 -04:00
Daniel Micay
eb7ced7781 implement in-place growth of large allocations 2018-10-06 13:24:22 -04:00
Daniel Micay
3a936295f8 Makefile: split out shared compiler flags 2018-10-05 02:45:40 -04:00
Daniel Micay
4716ff5b92 explicitly export C++ allocator overrides 
This doesn't make any difference for GCC, but these aren't replaced
outside of the library with Clang without explicitly exporting them.
 2018-10-05 02:23:49 -04:00
Daniel Micay
e6e9ac1fc9 support replacing C++ new/delete implementation 
This adds support for sanity checks based on sized deallocation and will
reduce the overhead of calls through the C++ allocator.
 2018-10-05 02:11:29 -04:00
Daniel Micay
3dc49f8f73 slightly improve sized deallocation error messages 2018-10-05 01:06:12 -04:00
Daniel Micay
dcd969ae04 use a consistent style for fixed-size int types 
The stdint.h types don't cover 128-bit integers and the underscore makes
them ill suited to usage in function suffixes. Instead, use the common
naming style in the Linux kernel and elsewhere including the ChaCha8
implementation included here.
 2018-10-04 15:17:11 -04:00
Daniel Micay
92a33182fb port chacha.h to the code style used elsewhere 2018-10-04 04:13:28 -04:00
Daniel Micay
08a633b244 fix another typo in the README 2018-10-04 04:12:21 -04:00
Daniel Micay
ef32a4b7ea add -pipe to CFLAGS 2018-10-04 04:03:48 -04:00