Commit Graph

675 Commits

Author SHA1 Message Date
Daniel Micay b84af9b499 add wrapper for madvise 2021-03-22 12:24:26 -04:00
Daniel Micay 73b78a8adb document madvise for malloc_trim of quarantines 2021-03-22 11:17:00 -04:00
Daniel Micay e77ffa76d9 add initial malloc_trim slab quarantine purging
This currently only purges the quarantines for extended size classes.
2021-03-22 11:16:57 -04:00
Daniel Micay 86b0b3e452 fix !CONFIG_EXTENDED_SIZE_CLASSES configuration 2021-03-21 18:09:02 -04:00
Daniel Micay 7b03b5c629 update README for region quarantine change 2021-03-18 07:35:38 -04:00
Daniel Micay db21ecd529 use longer default region quarantine random array 2021-03-18 06:27:46 -04:00
Daniel Micay ee55acf116 update libdivide to 4.0.0 2021-03-09 02:38:16 -05:00
Daniel Micay a3b4c163eb drop unused header 2021-03-05 00:35:10 -05:00
Daniel Micay 325b82f1bd update to Android qpr2 branch as minimum 2021-03-01 16:52:30 -05:00
Daniel Micay ddd14bc421 avoid type comparison warning on some platforms 2021-02-16 17:18:35 -05:00
Daniel Micay 29b09648d6 avoid undefined clz and shift in edge cases
This is triggered when get_large_size_class is called with a size in the
range [1,4]. This can occur with aligned_alloc(8192, size). In practice,
it doesn't appear to cause any harm, but we shouldn't have any undefined
behavior for well-defined usage of the API. It also occurs if the caller
passes a pointer outside the slab region to free_sized but the expected
size is in the range [1,4]. That usage of free_sized is already going to
be considered undefined, but we should avoid undefined behavior in the
caller from triggering more undefined behavior when it's avoidable.
2021-02-16 08:31:17 -05:00
Thibaut Sautereau 1984cb3b3d malloc_object_size: avoid fault for invalid region
It's the region pointer that can be NULL here, and p was checked at the
beginning of the function.
2021-02-10 17:43:36 -05:00
Thibaut Sautereau 76860c72e1 malloc_usable_size: clean abort on invalid region
It's the region pointer that can be NULL here, and p was checked at the
beginning of the function. Also fix the test accordingly.
2021-02-10 17:41:17 -05:00
Daniel Micay 5c8b686370 update copyright notice 2021-01-06 20:38:55 -05:00
Daniel Micay 5275563252 fix C++ sized deallocation check false positive
This is a compatibility issue triggered when both slab canaries and the
C++ allocator overloads providing sized deallocation checks are enabled.

The boundary where slab allocations are turned into large allocations
due to not having room for the canary in the largest slab allocation
size class triggers a false positive in the sized deallocation check.
2021-01-06 00:18:59 -05:00
Daniel Micay e9d9f70ad4 update supported Android 11 branch 2020-12-07 18:14:25 -05:00
Daniel Micay 10c5d61187 work around glibc bug in mallinfo test 2020-11-10 14:14:08 -05:00
Daniel Micay b90f650153 fix sized deallocation check with large sizes
The CONFIG_CXX_ALLOCATOR feature enables sanity checks for sized
deallocation and this wasn't updated to handle the introduction of
performing size class rounding for large sizes.
2020-11-10 13:53:32 -05:00
Daniel Micay 8d0314295e support Android's logging system for fatal_error 2020-10-19 07:51:00 -04:00
Daniel Micay b072022022 perform init sanity checks before MPK unsealing 2020-10-06 17:34:35 -04:00
Daniel Micay 2bb1c39d31 add MPK support for stats retrieval functions 2020-10-06 17:32:25 -04:00
Daniel Micay 0bf18b7c26 optimize malloc_usable_size enforce_init 2020-10-03 15:10:49 -04:00
Daniel Micay 178d4f320f harden checks for uninitialized usage 2020-10-02 15:06:29 -04:00
Daniel Micay b9ebf47c7c explicitly use python3 to run tests 2020-09-19 09:40:56 -04:00
Daniel Micay 8906c0941a improve mallinfo test 2020-09-18 11:38:06 -04:00
Daniel Micay 59e174eee0 update stats documentation 2020-09-17 17:44:01 -04:00
Daniel Micay 483b1d7b8b empty malloc_info output when stats are disabled 2020-09-17 17:42:18 -04:00
Daniel Micay 96eca21ac5 remove thread_local macro workaround glibc < 2.28 2020-09-17 17:38:40 -04:00
Daniel Micay 022b64791e whitespace fixes 2020-09-17 17:23:13 -04:00
Daniel Micay b4bbd09f07 change label for quarantined large allocations 2020-09-17 16:56:01 -04:00
Daniel Micay a88305c01b support disabling region quarantine 2020-09-17 16:53:34 -04:00
Daniel Micay 85c5c3736c add stats tracking to special large realloc paths 2020-09-17 16:29:13 -04:00
Daniel Micay 96a9bcf3a1 move deprecated glibc extensions to the bottom 2020-09-17 16:20:05 -04:00
Daniel Micay 41fb89517a simplify malloc_info code 2020-09-17 16:10:02 -04:00
Daniel Micay 50e0f1334c add is_init check to malloc_info 2020-09-17 16:07:10 -04:00
Daniel Micay 9fb2791af2 add is_init check to h_mallinfo_arena_info 2020-09-17 16:00:03 -04:00
anupritaisno1 8974af86d1 hardened malloc: iterate -> malloc_iterate
Signed-off-by: anupritaisno1 <www.anuprita804@gmail.com>
2020-09-15 00:37:23 -04:00
anupritaisno1 d203d6c445 Android.bp: export hardened malloc headers
Signed-off-by: anupritaisno1 <www.anuprita804@gmail.com>
2020-09-14 07:21:57 -04:00
Daniel Micay 9f5e1f6eb9 master is only going to support Android 11 2020-09-14 05:57:39 -04:00
Daniel Micay 1cba254452 move external API to include directory 2020-09-14 05:52:53 -04:00
anupritaisno1 730f148647 Android.bp: make hardened malloc ramdisk available
Signed-off-by: anupritaisno1 <www.anuprita804@gmail.com>
2020-09-13 05:14:25 -04:00
Daniel Micay dd7291ebfe better wording for page size mismatch error 2020-08-05 18:10:53 -04:00
Daniel Micay bcb93cab63 avoid an ifdef 2020-08-04 17:22:03 -04:00
rwarr627 f214bd541a added check for if small allocations are free 2020-06-17 23:29:30 -04:00
rwarr627 7804e263e9 added tests for if malloc_object_size small allocations are free 2020-06-17 23:29:30 -04:00
Daniel Micay de3fb50dcc tests: make no-optimize attribute Clang compatible 2020-06-17 20:08:46 -04:00
Daniel Micay b404d6da6e fix out-of-memory check in offset test 2020-06-17 16:27:59 -04:00
Daniel Micay c9c7dca498 use size_t in offset test to fix warning 2020-06-17 16:26:08 -04:00
Daniel Micay dcc80a01db android10-qpr3-release 2020-06-16 11:10:13 -04:00
Daniel Micay 722974f4e9 remove trailing whitespace 2020-06-13 09:59:50 -04:00