hardened_malloc

Commit Graph

Author	SHA1	Message	Date
Dmitry Muhomor	72dc236d5f	mte: add untag_pointer() variant for const pointers	2023-10-30 14:20:53 -04:00
Dmitry Muhomor	01a199e19e	mte: move is_memtag_enabled to read-only allocator data	2023-10-30 14:20:53 -04:00
Dmitry Muhomor	e3686ae457	add support for Arm MTE memory tagging - tag slab allocations with [1..14] tags - tag freed slab allocations with the "15" tag value to detect accesses to freed slab memory - when generating tag value for a slab slot, always exclude most recent tag value for that slot (to make use-after-free detection more reliable) and most recent tag values of its immediate neighbors (to detect linear overflows and underflows)	2023-10-30 14:20:53 -04:00

Author

SHA1

Message

Date

Dmitry Muhomor

72dc236d5f

mte: add untag_pointer() variant for const pointers

2023-10-30 14:20:53 -04:00

Dmitry Muhomor

01a199e19e

mte: move is_memtag_enabled to read-only allocator data

2023-10-30 14:20:53 -04:00

Dmitry Muhomor

e3686ae457

add support for Arm MTE memory tagging

- tag slab allocations with [1..14] tags
- tag freed slab allocations with the "15" tag value to detect accesses to freed slab memory
- when generating tag value for a slab slot, always exclude most recent tag value for that slot
(to make use-after-free detection more reliable) and most recent tag values of its immediate
neighbors (to detect linear overflows and underflows)

2023-10-30 14:20:53 -04:00

3 Commits (72dc236d5f9834f7129674ea0541f0e98c6b7748)