Chen Ridong 15e8156713 mm: shrinker: avoid memleak in alloc_shrinker_info ... A memleak was found as below: unreferenced object 0xffff8881010d2a80 (size 32): comm "mkdir", pid 1559, jiffies 4294932666 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 40 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 @............... backtrace (crc 2e7ef6fa): [<ffffffff81372754>] __kmalloc_node_noprof+0x394/0x470 [<ffffffff813024ab>] alloc_shrinker_info+0x7b/0x1a0 [<ffffffff813b526a>] mem_cgroup_css_online+0x11a/0x3b0 [<ffffffff81198dd9>] online_css+0x29/0xa0 [<ffffffff811a243d>] cgroup_apply_control_enable+0x20d/0x360 [<ffffffff811a5728>] cgroup_mkdir+0x168/0x5f0 [<ffffffff8148543e>] kernfs_iop_mkdir+0x5e/0x90 [<ffffffff813dbb24>] vfs_mkdir+0x144/0x220 [<ffffffff813e1c97>] do_mkdirat+0x87/0x130 [<ffffffff813e1de9>] __x64_sys_mkdir+0x49/0x70 [<ffffffff81f8c928>] do_syscall_64+0x68/0x140 [<ffffffff8200012f>] entry_SYSCALL_64_after_hwframe+0x76/0x7e alloc_shrinker_info(), when shrinker_unit_alloc() returns an errer, the info won't be freed. Just fix it. Link: https://lkml.kernel.org/r/20241025060942.1049263-1-chenridong@huaweicloud.com Fixes: 307bececcd ("mm: shrinker: add a secondary array for shrinker_info::{map, nr_deferred}") Signed-off-by: Chen Ridong <chenridong@huawei.com> Acked-by: Qi Zheng <zhengqi.arch@bytedance.com> Acked-by: Roman Gushchin <roman.gushchin@linux.dev> Acked-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Cc: Anshuman Khandual <anshuman.khandual@arm.com> Cc: Muchun Song <muchun.song@linux.dev> Cc: Wang Weiyang <wangweiyang2@huawei.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>		2024-10-31 20:27:04 -07:00
..
damon	mm/damon/tests/sysfs-kunit.h: fix memory leak in damon_sysfs_test_add_targets()	2024-10-17 00:28:08 -07:00
kasan	kasan: remove vmalloc_percpu test	2024-10-30 20:14:11 -07:00
kfence	mm: kfence: fix elapsed time for allocated/freed track	2024-09-26 14:01:44 -07:00
kmsan
backing-dev.c
balloon_compaction.c
bootmem_info.c
cma.c
cma.h
cma_debug.c
cma_sysfs.c
compaction.c
debug.c
debug_page_alloc.c
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
dmapool.c
dmapool_test.c
early_ioremap.c
execmem.c
fadvise.c
fail_page_alloc.c
failslab.c
filemap.c	mm/filemap: fix filemap_get_folios_contig THP panic	2024-09-26 14:01:43 -07:00
folio-compat.c	mm: remove putback_lru_page()	2024-09-09 16:38:59 -07:00
gup.c	mm/gup: stop leaking pinned pages in low memory conditions	2024-10-30 20:14:10 -07:00
gup_test.c
gup_test.h
highmem.c
hmm.c
huge_memory.c	mm: huge_memory: add vma_thp_disabled() and thp_disabled_by_hw()	2024-10-17 00:28:10 -07:00
hugetlb.c	mm/hugetlb: fix memfd_pin_folios resv_huge_pages leak	2024-09-26 14:01:43 -07:00
hugetlb_cgroup.c
hugetlb_vmemmap.c
hugetlb_vmemmap.h
hwpoison-inject.c
init-mm.c
internal.h	ALong with the usual shower of singleton patches, notable patch series in	2024-09-21 07:29:05 -07:00
interval_tree.c
io-mapping.c
ioremap.c
Kconfig	resource: remove dependency on SPARSEMEM from GET_FREE_REGION	2024-10-28 21:40:39 -07:00
Kconfig.debug
khugepaged.c	mm: khugepaged: fix the incorrect statistics when collapsing large file folios	2024-10-17 00:28:10 -07:00
kmemleak.c
ksm.c
list_lru.c
maccess.c
madvise.c	ALong with the usual shower of singleton patches, notable patch series in	2024-09-21 07:29:05 -07:00
Makefile
mapping_dirty_helpers.c
memblock.c	memblock: updates for 6.12-rc1	2024-09-25 11:35:19 -07:00
memcontrol-v1.c	struct fd layout change (and conversion to accessor helpers)	2024-09-23 09:35:36 -07:00
memcontrol-v1.h	memcg: cleanup with !CONFIG_MEMCG_V1	2024-09-17 01:07:00 -07:00
memcontrol.c	ALong with the usual shower of singleton patches, notable patch series in	2024-09-21 07:29:05 -07:00
memfd.c	mm/hugetlb: simplify refs in memfd_alloc_folio	2024-09-26 14:01:44 -07:00
memory-failure.c	mm: migrate: add isolate_folio_to_list()	2024-09-03 21:15:59 -07:00
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: avoid unconditional one-tick sleep when swapcache_prepare fails	2024-10-28 21:40:41 -07:00
memory_hotplug.c	ALong with the usual shower of singleton patches, notable patch series in	2024-09-21 07:29:05 -07:00
mempolicy.c
mempool.c
memremap.c
memtest.c
migrate.c	vmscan,migrate: fix page count imbalance on node stats when demoting pages	2024-10-31 20:27:04 -07:00
migrate_device.c	mm: remap unused subpages to shared zeropage when splitting isolated thp	2024-09-09 16:39:03 -07:00
mincore.c
mlock.c
mm_init.c
mm_slot.h
mmap.c	mm: split critical region in remap_file_pages() and invoke LSMs in between	2024-10-28 21:40:41 -07:00
mmap_lock.c
mmu_gather.c
mmu_notifier.c
mmzone.c
mprotect.c
mremap.c	mm/mremap: fix move_normal_pmd/retract_page_tables race	2024-10-17 00:28:07 -07:00
mseal.c	ALong with the usual shower of singleton patches, notable patch series in	2024-09-21 07:29:05 -07:00
msync.c
nommu.c
numa.c
numa_emulation.c
numa_memblks.c	mm: numa_clear_kernel_node_hotplug: Add NUMA_NO_NODE check for node id	2024-10-28 21:40:40 -07:00
oom_kill.c
page-writeback.c	ALong with the usual shower of singleton patches, notable patch series in	2024-09-21 07:29:05 -07:00
page_alloc.c	mm/page_alloc: let GFP_ATOMIC order-0 allocs access highatomic reserves	2024-10-28 21:40:39 -07:00
page_counter.c
page_ext.c
page_idle.c
page_io.c	mm: fix PSWPIN counter for large folios swap-in	2024-10-30 20:14:11 -07:00
page_isolation.c
page_owner.c
page_poison.c
page_reporting.c
page_reporting.h
page_table_check.c
page_vma_mapped.c
pagewalk.c	mm/pagewalk: fix usage of pmd_leaf()/pud_leaf() without present check	2024-10-28 21:40:38 -07:00
percpu-internal.h
percpu-km.c
percpu-stats.c
percpu-vm.c
percpu.c
pgalloc-track.h
pgtable-generic.c
process_vm_access.c
ptdump.c
readahead.c	struct fd layout change (and conversion to accessor helpers)	2024-09-23 09:35:36 -07:00
rmap.c	mm: introduce a pageflag for partially mapped folios	2024-09-09 16:39:04 -07:00
rodata_test.c
secretmem.c	secretmem: disable memfd_secret() if arch cannot set direct map	2024-10-09 12:47:19 -07:00
shmem.c	mm: shmem: fix data-race in shmem_getattr()	2024-10-28 21:40:39 -07:00
shmem_quota.c
show_mem.c	mm/show_mem.c: report alloc tags in human readable units	2024-09-17 01:07:00 -07:00
shrinker.c	mm: shrinker: avoid memleak in alloc_shrinker_info	2024-10-31 20:27:04 -07:00
shrinker_debug.c
shuffle.c
shuffle.h
slab.h	mm, slab: suppress warnings in test_leak_destroy kunit test	2024-10-02 16:28:46 +02:00
slab_common.c	mm, slab: suppress warnings in test_leak_destroy kunit test	2024-10-02 16:28:46 +02:00
slub.c	mm, slab: suppress warnings in test_leak_destroy kunit test	2024-10-02 16:28:46 +02:00
sparse-vmemmap.c	LoongArch: Set initial pte entry with PAGE_GLOBAL for kernel space	2024-10-21 22:11:19 +08:00
sparse.c
swap.c	mm: remove isolate_lru_page()	2024-09-09 16:38:59 -07:00
swap.h	mm: fix swap_read_folio_zeromap() for large folios with partial zeromap	2024-09-17 01:07:01 -07:00
swap_cgroup.c
swap_slots.c
swap_state.c	mm: add nr argument in mem_cgroup_swapin_uncharge_swap() helper to support large folios	2024-09-17 01:07:01 -07:00
swapfile.c	mm, swap: avoid over reclaim of full clusters	2024-10-30 20:14:11 -07:00
truncate.c
usercopy.c
userfaultfd.c	ALong with the usual shower of singleton patches, notable patch series in	2024-09-21 07:29:05 -07:00
util.c
vma.c	mm/vma: add expand-only VMA merge mode and optimise do_brk_flags()	2024-10-28 21:40:40 -07:00
vma.h	mm/vma: add expand-only VMA merge mode and optimise do_brk_flags()	2024-10-28 21:40:40 -07:00
vma_internal.h
vmalloc.c	ALong with the usual shower of singleton patches, notable patch series in	2024-09-21 07:29:05 -07:00
vmpressure.c
vmscan.c	mm/mglru: only clear kswapd_failures if reclaimable	2024-10-17 00:28:12 -07:00
vmstat.c	mm: split underused THPs	2024-09-09 16:39:04 -07:00
workingset.c
z3fold.c
zbud.c
zpool.c
zsmalloc.c	ALong with the usual shower of singleton patches, notable patch series in	2024-09-21 07:29:05 -07:00
zswap.c	mm: zswap: delete comments for "value" member of 'struct zswap_entry'.	2024-10-09 12:47:19 -07:00