124d958da1
document free slabs quarantine
2018-10-14 22:19:10 -04:00
3504465584
document progress on protected allocator state
2018-10-14 22:15:48 -04:00
da6fd5b5ef
move slab allocator state to a dedicated mapping
2018-10-14 22:06:38 -04:00
1190966846
rename region_info to region_metadata
2018-10-14 22:06:38 -04:00
a083ff79e1
move region allocator state to a dedicated mapping
2018-10-14 22:06:33 -04:00
d728afae8e
add configuration option for testing with UBSan
2018-10-14 18:58:54 -04:00
535466fdfd
avoid undefined shifts with multi-word bitmaps
2018-10-14 18:58:17 -04:00
7798b2693e
fix loop exit condition boundary for get_free_slot
2018-10-14 18:49:48 -04:00
3c0a448c3e
enable more tidy checks
2018-10-14 18:33:40 -04:00
9ea2fd6667
write_after_free_check only reads data
2018-10-14 18:30:20 -04:00
d35674c67e
expected_size is not an output parameter
2018-10-14 18:28:01 -04:00
8b033c5e44
make ALIGNMENT_CEILING into a function
2018-10-14 18:23:42 -04:00
118549451b
add tidy target to the Makefile for clang-tidy
2018-10-14 18:05:08 -04:00
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
4fbfe4d3ec
fix canary space reservation for pvalloc
2018-10-14 17:49:36 -04:00
f11c448a0d
slightly reorganize slab metadata
2018-10-14 15:13:06 -04:00
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
65a7014b48
randomize free slabs reuse
2018-10-13 13:57:00 -04:00
83df37436d
fix usage of pthread_atfork for glibc < 2.28
2018-10-12 16:03:15 -04:00
0a64c7d6a1
document the randomized array in the quarantine
2018-10-12 15:10:35 -04:00
6669166fe9
move memory_unmap outside of lock scope
2018-10-12 15:06:51 -04:00
b2007ad3d9
implement randomization for the region quarantine
2018-10-12 15:03:59 -04:00
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
e47c783524
add test for delete size mismatch
2018-10-11 01:45:47 -04:00
7606bf4c1f
clean up includes in new.cc
2018-10-11 01:35:25 -04:00
54c78fe1c2
distinguish between mmap / mremap errors
2018-10-10 19:05:35 -04:00
2381d973b1
expand on metadata address space security
2018-10-10 18:55:31 -04:00
29fd86ab37
document sized deallocation validation
2018-10-10 18:49:17 -04:00
c74fe56091
minor include style fix
2018-10-10 18:19:56 -04:00
ddcdd9423c
make the memory mapping quarantine more efficient
2018-10-09 14:13:59 -04:00
57d5ab769b
add write-after-free tests with potential reuse
2018-10-08 17:41:06 -04:00
5fa6e01929
clearer name for MREMAP_MAYMOVE threshold
2018-10-08 17:18:13 -04:00
1a10c17e8b
add quarantine for large allocations
2018-10-08 16:14:07 -04:00
cc9699f1b4
use multi-word bitmap to support up to 256 slots
2018-10-07 18:50:06 -04:00
5e2f03296e
remove old debugging code
2018-10-07 16:18:17 -04:00
fa2796a941
Makefile: add missing dependencies
2018-10-07 11:31:07 -04:00
cf07ae6007
update configuration in README
2018-10-06 15:38:09 -04:00
348f9fa557
add configuration for frequency of guard slabs
2018-10-06 15:36:03 -04:00
4ee12e64e0
configuration for guard region sizes
2018-10-06 15:17:55 -04:00
d18b05eaf4
avoid redundant checks for large realloc
2018-10-06 13:31:16 -04:00
eb7ced7781
implement in-place growth of large allocations
2018-10-06 13:24:22 -04:00
3a936295f8
Makefile: split out shared compiler flags
2018-10-05 02:45:40 -04:00
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
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
3dc49f8f73
slightly improve sized deallocation error messages
2018-10-05 01:06:12 -04:00
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
92a33182fb
port chacha.h to the code style used elsewhere
2018-10-04 04:13:28 -04:00
08a633b244
fix another typo in the README
2018-10-04 04:12:21 -04:00
ef32a4b7ea
add -pipe to CFLAGS
2018-10-04 04:03:48 -04:00
e99191d5d4
document tuning vm.max_map_count
2018-10-04 03:44:19 -04:00
