Commit Graph

342 Commits (02bfcc3b75ef17a2dbae08ca582988aa7d19eb9b)

Author SHA1 Message Date
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
Daniel Micay e99191d5d4 document tuning vm.max_map_count 2018-10-04 03:44:19 -04:00
Daniel Micay d12cf324dd add documentation on testing 2018-10-04 03:27:30 -04:00
Daniel Micay 2a31c7291b add basic documentation on configuration 2018-10-04 03:15:55 -04:00
Daniel Micay 642eed81c0 allow using larger guards on large allocations 2018-10-04 02:58:24 -04:00
Daniel Micay 9b7691a2a7 take canaries into account for the offset test 2018-10-04 02:52:20 -04:00
Daniel Micay 71d52d981e fix output of size class offset test 2018-10-04 02:41:01 -04:00