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v6.14.10
linux/mm
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Kees Cook a89d47c63e mm: vmalloc: only zero-init on vrealloc shrink 
commit 70d1eb031a upstream.

The common case is to grow reallocations, and since init_on_alloc will
have already zeroed the whole allocation, we only need to zero when
shrinking the allocation.

Link: https://lkml.kernel.org/r/20250515214217.619685-2-kees@kernel.org
Fixes: a0309faf1c ("mm: vmalloc: support more granular vrealloc() sizing")
Signed-off-by: Kees Cook <kees@kernel.org>
Tested-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Cc: Danilo Krummrich <dakr@kernel.org>
Cc: Eduard Zingerman <eddyz87@gmail.com>
Cc: "Erhard F." <erhard_f@mailbox.org>
Cc: Shung-Hsi Yu <shung-hsi.yu@suse.com>
Cc: "Uladzislau Rezki (Sony)" <urezki@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-29 11:14:06 +02:00
..
damon
mm/damon: avoid applying DAMOS action to same entity multiple times
2025-04-20 10:23:08 +02:00
kasan
kasan: avoid sleepable page allocation from atomic context
2025-05-29 11:14:05 +02:00
kfence
kfence: skip __GFP_THISNODE allocations on NUMA systems
2025-02-01 03:53:26 -08:00
kmsan
dma: kmsan: export kmsan_handle_dma() for modules
2025-03-05 21:36:14 -08:00
backing-dev.c
writeback: support retrieving per group debug writeback stats of bdi
2024-05-05 17:53:51 -07:00
balloon_compaction.c
mm: remove MIGRATE_SYNC_NO_COPY mode
2024-07-03 19:30:00 -07:00
bootmem_info.c
bootmem: stop using page->index
2024-11-07 14:38:07 -08:00
cma_debug.c
…
cma_sysfs.c
mm/cma: add sysfs file 'release_pages_success'
2024-02-22 10:24:57 -08:00
cma.c
cma: enforce non-zero pageblock_order during cma_init_reserved_mem()
2024-11-14 22:49:19 -08:00
cma.h
mm: change type of cma_area_count to unsigned int
2025-01-13 22:40:35 -08:00
compaction.c
mm/compaction: fix bug in hugetlb handling pathway
2025-04-25 10:51:05 +02:00
debug_page_alloc.c
mm: page_alloc: consolidate free page accounting
2024-04-25 20:56:04 -07:00
debug_page_ref.c
…
debug_vm_pgtable.c
mm/debug_vm_pgtable: Use pxdp_get() for accessing page table entries
2024-09-17 01:07:01 -07:00
debug.c
mm/debug: introduce VM_WARN_ON_VMG() to dump VMA merge state
2025-01-25 20:22:23 -08:00
dmapool_test.c
mm/dmapool: add MODULE_DESCRIPTION()
2024-07-03 19:29:58 -07:00
dmapool.c
mm/mempool/dmapool: remove CONFIG_DEBUG_SLAB ifdefs
2023-12-05 11:17:58 +01:00
early_ioremap.c
mm/early_ioremap: add null pointer checks to prevent NULL-pointer dereference
2025-01-13 22:40:59 -08:00
execmem.c
alloc_tag: populate memory for module tags as needed
2024-11-07 14:25:16 -08:00
fadvise.c
fdget(), trivial conversions
2024-11-03 01:28:06 -05:00
fail_page_alloc.c
fault-inject: improve build for CONFIG_FAULT_INJECTION=n
2024-09-01 20:43:33 -07:00
failslab.c
fault-inject: improve build for CONFIG_FAULT_INJECTION=n
2024-09-01 20:43:33 -07:00
filemap.c
mm: fix filemap_get_folios_contig returning batches of identical folios
2025-04-25 10:51:06 +02:00
folio-compat.c
mm/writeback: add folio_mark_dirty_lock()
2024-11-05 11:14:32 +01:00
gup_test.c
Merge mm-hotfixes-stable into mm-stable to pick up depended-upon changes.
2023-06-23 16:58:19 -07:00
gup_test.h
…
gup.c
mm/gup: fix wrongly calculated returned value in fault_in_safe_writeable()
2025-04-25 10:51:06 +02:00
highmem.c
mm/highmem: make nr_free_highpages() return "unsigned long"
2024-07-03 19:30:06 -07:00
hmm.c
mm: provide mm_struct and address to huge_ptep_get()
2024-07-12 15:52:15 -07:00
huge_memory.c
mm/huge_memory: fix dereferencing invalid pmd migration entry
2025-05-18 08:26:01 +02:00
hugetlb_cgroup.c
mm/hugetlb-cgroup: convert hugetlb_cgroup_css_offline() to work on folios
2025-01-25 20:22:42 -08:00
hugetlb_vmemmap.c
treewide: const qualify ctl_tables where applicable
2025-01-28 13:48:37 +01:00
hugetlb_vmemmap.h
mm: hugetlb_vmemmap: fix reference to nonexistent file
2023-10-25 16:47:14 -07:00
hugetlb.c
mm/hugetlb: fix kernel NULL pointer dereference when replacing free hugetlb folios
2025-05-29 11:14:05 +02:00
hwpoison-inject.c
mm/hwpoison: add MODULE_DESCRIPTION()
2024-07-03 19:29:58 -07:00
init-mm.c
mm: convert mm_lock_seq to a proper seqcount
2025-01-13 22:40:50 -08:00
internal.h
mm: fix folio_pte_batch() on XEN PV
2025-05-18 08:26:01 +02:00
interval_tree.c
…
io-mapping.c
…
ioremap.c
mm: ioremap: remove unneeded ioremap_allowed and iounmap_allowed
2023-08-18 10:12:36 -07:00
Kconfig
mm: add build-time option for hotplug memory default online type
2025-01-25 20:22:21 -08:00
Kconfig.debug
slub: Introduce CONFIG_SLUB_RCU_DEBUG
2024-08-27 14:12:51 +02:00
khugepaged.c
Merge tag 'mm-stable-2025-01-26-14-59' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2025-01-26 18:36:23 -08:00
kmemleak.c
mm: kmemleak: fix upper boundary check for physical address objects
2025-02-01 03:53:25 -08:00
ksm.c
ksm: add ksm involvement information for each process
2025-01-25 20:22:40 -08:00
list_lru.c
mm/list_lru: fix false warning of negative counter
2024-12-30 17:59:10 -08:00
maccess.c
kasan: migrate copy_user_test to kunit
2024-11-11 00:26:44 -08:00
madvise.c
mm,madvise,hugetlb: check for 0-length range after end address adjustment
2025-02-17 22:40:01 -08:00
Makefile
mm: pgtable: reclaim empty PTE page in madvise(MADV_DONTNEED)
2025-01-13 22:40:48 -08:00
mapping_dirty_helpers.c
mm: fix clean_record_shared_mapping_range kernel-doc
2023-08-24 16:20:30 -07:00
memblock.c
memblock: Accept allocated memory before use in memblock_double_array()
2025-05-18 08:26:04 +02:00
memcontrol-v1.c
mm: remove the non-useful else after a break in a if statement
2025-01-13 22:40:40 -08:00
memcontrol-v1.h
mm: memcg: declare do_memsw_account inline
2024-12-05 19:54:46 -08:00
memcontrol.c
memcg: always call cond_resched() after fn()
2025-05-29 11:14:05 +02:00
memfd.c
mm/memfd: use strncpy_from_user() to read memfd name
2025-01-25 20:22:40 -08:00
memory_hotplug.c
mm/hwpoison: introduce folio_contain_hwpoisoned_page() helper
2025-04-20 10:23:09 +02:00
memory-failure.c
mm/hwpoison: do not send SIGBUS to processes with recovered clean pages
2025-04-20 10:23:09 +02:00
memory-tiers.c
memory tiers: use default_dram_perf_ref_source in log message
2024-09-26 14:01:44 -07:00
memory.c
mm: fix apply_to_existing_page_range()
2025-04-25 10:51:06 +02:00
mempolicy.c
mm/hugetlb: rename isolate_hugetlb() to folio_isolate_hugetlb()
2025-01-25 20:22:41 -08:00
mempool.c
mm: fix xyz_noprof functions calling profiled functions
2024-06-05 19:19:26 -07:00
memremap.c
mm: convert put_devmap_managed_page_refs() to put_devmap_managed_folio_refs()
2024-05-05 17:53:49 -07:00
memtest.c
memtest: use {READ,WRITE}_ONCE in memory scanning
2024-03-13 12:12:21 -07:00
migrate_device.c
mm/migrate_device: don't add folio to be freed to LRU in migrate_device_finalize()
2025-02-17 22:40:02 -08:00
migrate.c
mm/migrate: fix shmem xarray update during migration
2025-03-16 17:40:24 -07:00
mincore.c
mm: provide mm_struct and address to huge_ptep_get()
2024-07-12 15:52:15 -07:00
mlock.c
mm/mlock: set the correct prev on failure
2024-11-07 14:14:58 -08:00
mm_init.c
mm/memmap: prevent double scanning of memmap by kmemleak
2025-01-25 20:22:30 -08:00
mm_slot.h
…
mmap_lock.c
mm: mmap_lock: optimize mmap_lock tracepoints
2025-01-13 22:40:34 -08:00
mmap.c
mm: make mmap_region() internal
2025-01-25 20:22:38 -08:00
mmu_gather.c
mm: pgtable: move __tlb_remove_table_one() in x86 to generic file
2025-01-25 20:22:23 -08:00
mmu_notifier.c
mm: move internal core VMA manipulation functions to own file
2024-09-01 20:25:54 -07:00
mmzone.c
mm: improve code consistency with zonelist_* helper functions
2024-09-01 20:25:55 -07:00
mprotect.c
mm: add PTE_MARKER_GUARD PTE marker
2024-11-11 00:26:44 -08:00
mremap.c
mm/mremap: correctly handle partial mremap() of VMA starting at 0
2025-04-20 10:23:08 +02:00
mseal.c
mseal: remove can_do_mseal()
2025-01-13 22:40:51 -08:00
msync.c
…
nommu.c
Revert "fsnotify: generate pre-content permission event on page fault"
2025-03-13 16:30:55 +01:00
numa_emulation.c
mm/fake-numa: allow later numa node hotplug
2025-01-25 20:22:29 -08:00
numa_memblks.c
mm/fake-numa: allow later numa node hotplug
2025-01-25 20:22:29 -08:00
numa.c
mm/memblock: add memblock_alloc_or_panic interface
2025-01-25 20:22:38 -08:00
oom_kill.c
treewide: const qualify ctl_tables where applicable
2025-01-28 13:48:37 +01:00
page_alloc.c
mm/page_alloc.c: avoid infinite retries caused by cpuset race
2025-05-29 11:14:05 +02:00
page_counter.c
kernel/cgroup: Add "dmem" memory accounting cgroup
2025-01-06 17:24:38 +01:00
page_ext.c
mm: don't account memmap per-node
2024-08-15 22:16:14 -07:00
page_frag_cache.c
mm/page_alloc: export free_frozen_pages() instead of free_unref_page()
2025-01-13 22:40:31 -08:00
page_idle.c
mm/page_idle: constify 'struct bin_attribute'
2025-01-25 20:22:19 -08:00
page_io.c
mm, swap: clean up device availability check
2025-01-25 20:22:36 -08:00
page_isolation.c
mm/hugetlb: wait for hugetlb folios to be freed
2025-03-05 21:36:14 -08:00
page_owner.c
mm/page-owner: use gfp_nested_mask() instead of open coded masking
2024-05-19 14:40:44 -07:00
page_poison.c
mm/page_poison: replace kmap_atomic() with kmap_local_page()
2023-12-10 16:51:50 -08:00
page_reporting.c
mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER
2024-01-08 15:27:15 -08:00
page_reporting.h
…
page_table_check.c
mm/page_table_check: fix crash on ZONE_DEVICE
2024-06-15 10:43:04 -07:00
page_vma_mapped.c
mm: make page_mapped_in_vma() hugetlb walk aware
2025-04-20 10:23:08 +02:00
page-writeback.c
writeback: fix calculations in trace_balance_dirty_pages() for cgwb
2025-04-10 14:44:32 +02:00
pagewalk.c
mm: pagewalk: add the ability to install PTEs
2024-11-11 00:26:44 -08:00
percpu-internal.h
mm: remove CONFIG_MEMCG_KMEM
2024-07-10 12:14:54 -07:00
percpu-km.c
…
percpu-stats.c
…
percpu-vm.c
percpu: clean up all mappings when pcpu_map_pages() fails
2024-04-25 20:55:49 -07:00
percpu.c
mm/memblock: add memblock_alloc_or_panic interface
2025-01-25 20:22:38 -08:00
pgalloc-track.h
…
pgtable-generic.c
mm: add RCU annotation to pte_offset_map(_lock)
2024-12-18 19:04:43 -08:00
process_vm_access.c
mm: refactor mm_access() to not return NULL
2024-11-05 16:56:23 -08:00
pt_reclaim.c
mm: pgtable: reclaim empty PTE page in madvise(MADV_DONTNEED)
2025-01-13 22:40:48 -08:00
ptdump.c
mm: ptdump: add check_wx_pages debugfs attribute
2024-02-22 10:24:47 -08:00
readahead.c
Revert "fanotify: disable readahead if we have pre-content watches"
2025-03-13 16:31:12 +01:00
rmap.c
mm/rmap: reject hugetlb folios in folio_make_device_exclusive()
2025-04-20 10:23:08 +02:00
rodata_test.c
mm/rodata_test: verify test data is unchanged, rather than non-zero
2025-01-13 22:40:38 -08:00
secretmem.c
add a string-to-qstr constructor
2025-01-27 19:25:45 -05:00
shmem_quota.c
shmem_quota: build the object file conditionally to the config option
2024-09-01 20:25:45 -07:00
shmem.c
mm/hwpoison: introduce folio_contain_hwpoisoned_page() helper
2025-04-20 10:23:09 +02:00
show_mem.c
mm/show_mem: use str_yes_no() helper in show_free_areas()
2024-11-07 14:38:08 -08:00
shrinker_debug.c
saner replacement for debugfs_rename()
2025-01-15 13:14:37 +01:00
shrinker.c
mm: shrinker: avoid memleak in alloc_shrinker_info
2024-10-31 20:27:04 -07:00
shuffle.c
…
shuffle.h
mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER
2024-01-08 15:27:15 -08:00
slab_common.c
mm/slab/kvfree_rcu: Switch to WQ_MEM_RECLAIM wq
2025-03-04 08:51:53 +01:00
slab.h
mm/slab: fix kernel-doc func param names
2025-01-13 10:22:04 +01:00
slub.c
mm, slab: clean up slab->obj_exts always
2025-05-09 09:56:05 +02:00
sparse-vmemmap.c
mm/memmap: prevent double scanning of memmap by kmemleak
2025-01-25 20:22:30 -08:00
sparse.c
mm/memblock: add memblock_alloc_or_panic interface
2025-01-25 20:22:38 -08:00
swap_cgroup.c
mm: memcontrol: fix swap counter leak from offline cgroup
2025-03-16 17:40:24 -07:00
swap_slots.c
mm, swap_slots: remove slot cache for freeing path
2025-01-25 20:22:37 -08:00
swap_state.c
mm: remove unnecessary calls to lru_add_drain
2025-01-25 20:22:21 -08:00
swap.c
mm/filemap: add read support for RWF_DONTCACHE
2025-01-25 20:22:43 -08:00
swap.h
mm: fix swap_read_folio_zeromap() for large folios with partial zeromap
2024-09-17 01:07:01 -07:00
swapfile.c
mm, swap: avoid BUG_ON in relocate_cluster()
2025-03-05 21:36:15 -08:00
truncate.c
mm/truncate: don't skip dirty page in folio_unmap_invalidate()
2025-02-21 14:09:47 +01:00
usercopy.c
mm: Fix copy_from_user_nofault().
2023-04-12 17:36:23 -07:00
userfaultfd.c
mm: userfaultfd: correct dirty flags set for both present and swap pte
2025-05-22 14:31:55 +02:00
util.c
fsnotify: add pre-content hooks on mmap()
2025-03-12 17:57:32 +01:00
vma_internal.h
mm/vma: move brk() internals to mm/vma.c
2025-01-13 22:40:42 -08:00
vma.c
mm/vma: add give_up_on_oom option on modify/merge, use in uffd release
2025-04-25 10:51:20 +02:00
vma.h
mm/vma: add give_up_on_oom option on modify/merge, use in uffd release
2025-04-25 10:51:20 +02:00
vmalloc.c
mm: vmalloc: only zero-init on vrealloc shrink
2025-05-29 11:14:06 +02:00
vmpressure.c
eventfd: simplify eventfd_signal()
2023-11-28 14:08:38 +01:00
vmscan.c
mm/vmscan: don't try to reclaim hwpoison folio
2025-05-02 08:01:30 +02:00
vmstat.c
vmstat: disable vmstat_work on vmstat_cpu_down_prep()
2025-01-12 19:03:38 -08:00
workingset.c
mm/mglru: rework workingset protection
2025-01-25 20:22:39 -08:00
z3fold.c
mm/z3fold: add __percpu annotation to *unbuddied pointer in struct z3fold_pool
2024-09-01 20:25:56 -07:00
zbud.c
mm: zpool: return pool size in pages
2024-04-25 20:55:48 -07:00
zpdesc.h
mm/zsmalloc: introduce __zpdesc_clear/set_zsmalloc()
2025-01-25 20:22:35 -08:00
zpool.c
mm: zpool: return pool size in pages
2024-04-25 20:55:48 -07:00
zsmalloc.c
mm/zsmalloc: add __maybe_unused attribute for is_first_zpdesc()
2025-02-01 03:53:23 -08:00
zswap.c
mm: zswap: fix crypto_free_acomp() deadlock in zswap_cpu_comp_dead()
2025-04-10 14:44:47 +02:00