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kernel_samsung_a53x/mm
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Daniel Micay e3839126e6 support randomizing the lower bits of brk 
This adds support for arch_randomize_brk implementations not performing
page alignment in order to randomize the lower bits of the brk heap.

This idea is taken from PaX but the approach is different. This reuses
the existing code and avoids forcing early creation of the heap mapping,
avoiding mapping it if it's not used which is the case with many modern
allocators based solely on mmap.

The malloc implementation can be relied upon to align this as needed to
the requirements it has, so using 16 byte alignment here is unnecessary.

Signed-off-by: Daniel Micay <danielmicay@gmail.com>
Signed-off-by: anupritaisno1 <www.anuprita804@gmail.com>
2024-11-30 02:16:40 +01:00
..
damon Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
kasan Revert "kasan: print the original fault addr when access invalid shadow" 2024-11-18 11:06:01 +01:00
kfence Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sec_mm Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
backing-dev.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
balloon_compaction.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cleancache.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cma.c mm/cma: use nth_page() in place of direct struct page manipulation 2024-11-18 11:43:25 +01:00
cma.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cma_debug.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cma_sysfs.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
compaction.c mm: Disable proactive compaction by default 2024-11-19 17:53:38 +01:00
debug.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
debug_page_ref.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
debug_vm_pgtable.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dmapool.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
early_ioremap.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
fadvise.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
failslab.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
filemap.c mm/lru: revise the comments of lru_lock 2024-11-19 17:58:24 +01:00
frame_vector.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
frontswap.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
gup.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
gup_benchmark.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
highmem.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
hmm.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
hpa.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
huge_memory.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
hugetlb.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
hugetlb_cgroup.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
hwpoison-inject.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
init-mm.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
internal.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
interval_tree.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
io_record.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ioremap.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
Kconfig zsmalloc: backport from 5994eabf3bbb 2024-11-19 17:44:14 +01:00
Kconfig.debug Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
khugepaged.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
kmemleak.c mm: kmemleak: Don't die when memory allocation fails 2024-11-19 17:44:35 +01:00
ksm.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
kzerod.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
list_lru.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
maccess.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
madvise.c Revert "fs: add file and path permissions helpers" 2024-11-19 13:30:21 +01:00
Makefile Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mapping_dirty_helpers.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
memblock.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
memcontrol.c memcg_write_event_control(): fix a user-triggerable oops 2024-11-23 23:20:43 +01:00
memfd.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
memory-failure.c mm/memory-failure: fix an incorrect use of tail pages 2024-11-19 09:22:41 +01:00
memory.c mm: avoid leaving partial pfn mappings around in error case 2024-11-23 23:22:05 +01:00
memory_hotplug.c mm/memory_hotplug: use pfn math in place of direct struct page manipulation 2024-11-18 11:43:25 +01:00
mempolicy.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mempool.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
memremap.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
memtest.c memtest: use {READ,WRITE}_ONCE in memory scanning 2024-11-19 09:22:36 +01:00
migrate.c mm/migrate: set swap entry values of THP tail pages properly. 2024-11-19 09:22:41 +01:00
mincore.c Revert "fs: add file and path permissions helpers" 2024-11-19 13:30:21 +01:00
mlock.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mm_init.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mmap.c support randomizing the lower bits of brk 2024-11-30 02:16:40 +01:00
mmu_gather.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mmu_notifier.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mmzone.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mprotect.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mremap.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
msync.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nommu.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
oom_kill.c mm: oom_kill: Reduce some verbose logging 2024-11-19 17:44:31 +01:00
page-writeback.c Revert "kernel: sysctl: add init protection to common mm-related nodes" 2024-11-19 18:13:49 +01:00
page_alloc.c mm: Disable watermark boosting by default 2024-11-19 17:59:15 +01:00
page_counter.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
page_ext.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
page_idle.c mm: page_idle_get_page() does not need lru_lock 2024-11-19 17:58:44 +01:00
page_io.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
page_isolation.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
page_owner.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
page_pinner.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
page_poison.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
page_reporting.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
page_reporting.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
page_vma_mapped.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
pagewalk.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
percpu-internal.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
percpu-km.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
percpu-stats.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
percpu-vm.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
percpu.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
pgalloc-track.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
pgtable-generic.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
process_vm_access.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ptdump.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
readahead.c vfs: fix readahead(2) on block devices 2024-11-18 11:42:46 +01:00
rmap.c mm/rmap: stop store reordering issue on page->mapping 2024-11-19 17:59:04 +01:00
rodata_test.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
shmem.c mm: shmem: fix data-race in shmem_getattr() 2024-11-23 23:22:06 +01:00
shuffle.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
shuffle.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
slab.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
slab.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
slab_common.c add __ro_after_init to slab_nomerge and slab_state 2024-11-30 02:16:00 +01:00
slob.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
slub.c slub: Optimized SLUB Memory Allocator 2024-11-19 17:44:40 +01:00
sparse-vmemmap.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sparse.c mm/sparsemem: fix race in accessing memory_section->usage 2024-11-18 12:13:06 +01:00
swap.c mm/lru: move lock into lru_note_cost 2024-11-19 17:58:50 +01:00
swap_cgroup.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
swap_slots.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
swap_state.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
swapfile.c Revert "mm/swapfile: skip HugeTLB pages for unuse_vma" 2024-11-24 00:22:53 +01:00
truncate.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
usercopy.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
userfaultfd.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
util.c mm: randomize lower bits of brk 2024-11-30 02:16:33 +01:00
vmacache.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vmalloc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vmpressure.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vmscan.c mm/vmscan: remove unnecessary lruvec adding 2024-11-19 17:58:57 +01:00
vmstat.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
workingset.c mm/lru: move lock into lru_note_cost 2024-11-19 17:58:50 +01:00
z3fold.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
zbud.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
zpool.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
zsmalloc.c zsmalloc: backport from 5994eabf3bbb 2024-11-19 17:44:14 +01:00
zswap.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00