github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-07 05:55:44 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph
e7cf28a1a4
linux/mm
History
Faiyaz Mohammed b007e43692 FROMGIT: mm: slub: fix the leak of alloc/free traces debugfs interface 
Fix the leak of alloc/free traces debugfs interface, reported by kmemleak
like below,

unreferenced object 0xffff00091ae1b540 (size 64):
  comm "lsbug", pid 1607, jiffies 4294958291 (age 1476.340s)
  hex dump (first 32 bytes):
    02 00 00 00 00 00 00 00 6b 6b 6b 6b 6b 6b 6b 6b  ........kkkkkkkk
    6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
  backtrace:
    [<ffff8000106b06b8>] slab_post_alloc_hook+0xa0/0x418
    [<ffff8000106b5c7c>] kmem_cache_alloc_trace+0x1e4/0x378
    [<ffff8000106b5e40>] slab_debugfs_start+0x30/0x50
    slab_debugfs_start at mm/slub.c:5831
    [<ffff8000107b3dbc>] seq_read_iter+0x214/0xd50
    [<ffff8000107b4b84>] seq_read+0x28c/0x418
    [<ffff8000109560b4>] full_proxy_read+0xdc/0x148
    [<ffff800010738f24>] vfs_read+0x104/0x340
    [<ffff800010739ee0>] ksys_read+0xf8/0x1e0
    [<ffff80001073a03c>] __arm64_sys_read+0x74/0xa8

Link: https://lkml.kernel.org/r/1624248060-30286-1-git-send-email-faiyazm@codeaurora.org
Fixes: 3589836402ca ("mm: slub: move sysfs slab alloc/free interfaces to debugfs")
Link: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/mm/slub.c?h=next-20210617&id=84a2bdb1b458fc968d6d9e07dab388dc679bd747
Signed-off-by: Faiyaz Mohammed <faiyazm@codeaurora.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
BUG: 176858818
(cherry picked from commit 29d055e7966b5beae75db7980df78f99344f74ae
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/mm/slub.c?h=next-20210624&id=29d055e7966b5beae75db7980df78f99344f74ae)

Change-Id: I26fd4285b3e8f2a48f7c1320adceb0208e0fbc45
Signed-off-by: Faiyaz Mohammed <faiyazm@codeaurora.org>
2021-06-28 16:17:37 +00:00
..
kasan BACKPORT: FROMGIT: kasan: disable freed user page poisoning with HW tags 2021-06-17 14:39:37 -07:00
kfence FROMGIT: kfence: unconditionally use unbound work queue 2021-06-03 20:52:39 +00:00
backing-dev.c
balloon_compaction.c
cleancache.c
cma_debug.c FROMLIST: mm: cma: introduce gfp flag in cma_alloc instead of no_warn 2021-01-25 12:21:02 -08:00
cma_sysfs.c ANDROID: make cma_sysfs experimental 2021-03-25 19:20:18 +00:00
cma.c FROMGIT: mm: cma: add the CMA instance name to cma trace events 2021-04-23 22:41:43 +00:00
cma.h ANDROID: GKI: add OEM data in cma struct 2021-06-04 11:15:16 -07:00
compaction.c FROMLIST: mm: compaction: fix wakeup logic of proactive compaction 2021-06-17 14:16:29 -07:00
debug_page_ref.c
debug_vm_pgtable.c mm/debug_vm_pgtable: fix alignment for pmd/pud_advanced_tests() 2021-06-10 13:39:26 +02:00
debug.c ANDROID: mm: introduce page_pinner 2021-04-30 09:13:34 -07:00
dmapool.c
early_ioremap.c
fadvise.c
failslab.c
filemap.c ANDROID: mm: Add hooks to filemap_fault for oem's optimization 2021-06-17 14:16:47 -07:00
frame_vector.c
frontswap.c
gup_benchmark.c
gup.c Merge 5.10.38 into android12-5.10 2021-05-20 15:35:25 +02:00
highmem.c
hmm.c
huge_memory.c Merge 5.10.27 into android12-5.10 2021-04-02 15:25:50 +02:00
hugetlb_cgroup.c hugetlb_cgroup: fix imbalanced css_get and css_put pair for shared mappings 2021-03-30 14:31:54 +02:00
hugetlb.c Merge 5.10.43 into android12-5.10 2021-06-12 14:48:14 +02:00
hwpoison-inject.c
init-mm.c FROMLIST: mm: protect mm_rb tree with a rwlock 2021-01-22 18:00:57 +00:00
internal.h FROMLIST: mm: provide speculative fault infrastructure 2021-01-22 18:01:16 +00:00
interval_tree.c
ioremap.c
Kconfig FROMLIST: mm: cma: support sysfs 2021-03-25 19:20:09 +00:00
Kconfig.debug ANDROID: mm: introduce page_pinner 2021-04-30 09:13:34 -07:00
khugepaged.c Merge 5.10.38 into android12-5.10 2021-05-20 15:35:25 +02:00
kmemleak.c UPSTREAM: kfence: make compatible with kmemleak 2021-04-29 08:13:57 +02:00
ksm.c Merge 5.10.38 into android12-5.10 2021-05-20 15:35:25 +02:00
list_lru.c mm: list_lru: set shrinker map bit when child nr_items is not zero 2020-12-06 10:19:07 -08:00
maccess.c
madvise.c This is the 5.10.24 stable release 2021-03-19 09:42:56 +01:00
Makefile ANDROID: mm: introduce page_pinner 2021-04-30 09:13:34 -07:00
mapping_dirty_helpers.c
memblock.c UPSTREAM: mm: memblock: add more debug logs 2021-05-21 09:08:08 +05:30
memcontrol.c mm: memcontrol: slab: fix obtain a reference to a freeing memcg 2021-05-14 09:50:45 +02:00
memfd.c
memory_hotplug.c ANDROID: mm/memory_hotplug: Relax remove_memory_subsection error checking 2021-06-08 18:54:33 +00:00
memory-failure.c mm/memory-failure: unnecessary amount of unmapping 2021-05-14 09:50:45 +02:00
memory.c BACKPORT: FROMGIT: userfaultfd/shmem: support minor fault registration for shmem 2021-06-04 19:12:49 +00:00
mempolicy.c FROMLIST: mm: replace migrate_[prep|finish] with lru_cache_[disable|enable] 2021-03-23 04:05:24 +00:00
mempool.c FROMGIT: kasan: use separate (un)poison implementation for integrated init 2021-06-17 14:39:37 -07:00
memremap.c mm: fix memory_failure() handling of dax-namespace metadata 2021-03-04 11:38:21 +01:00
memtest.c
migrate.c Merge 5.10.38 into android12-5.10 2021-05-20 15:35:25 +02:00
mincore.c
mlock.c ANDROID: mm: page_pinner: unattribute follow_page in munlock_vma_pages_range 2021-04-30 09:13:35 -07:00
mm_init.c
mmap.c ANDROID: Fix access invalid addr because it is not initialized 2021-05-26 18:00:01 +00:00
mmu_gather.c
mmu_notifier.c mm/mmu_notifiers: ensure range_end() is paired with range_start() 2021-03-30 14:32:06 +02:00
mmzone.c ANDROID: mm: export zone_watermark_ok 2021-02-25 19:36:38 +00:00
mprotect.c FROMGIT: mm: improve mprotect(R|W) efficiency on pages referenced once 2021-06-15 19:33:15 +00:00
mremap.c FROMLIST: mm: Extend MREMAP_DONTUNMAP to non-anonymous mappings 2021-03-25 22:44:44 +00:00
msync.c
nommu.c ANDROID: mm: allow vmas with vm_ops to be speculatively handled 2021-04-23 18:42:39 -07:00
oom_kill.c ANDROID: signal: Add vendor hook for memory reaping 2021-06-03 20:59:15 +00:00
OWNERS ANDROID: Add OWNERS files referring to the respective android-mainline OWNERS 2021-04-03 14:11:30 +00:00
page_alloc.c BACKPORT: FROMGIT: kasan: disable freed user page poisoning with HW tags 2021-06-17 14:39:37 -07:00
page_counter.c
page_ext.c ANDROID: mm: introduce page_pinner 2021-04-30 09:13:34 -07:00
page_idle.c
page_io.c UPSTREAM: mm/page_io: use pr_alert_ratelimited for swap read/write errors 2021-03-30 18:44:11 +00:00
page_isolation.c
page_owner.c ANDROID: mm: Make page_owner_enabled global 2021-04-01 00:09:00 +00:00
page_pinner.c ANDROID: fix permission error of page_pinner 2021-06-23 18:36:15 +00:00
page_poison.c FROMGIT: mm, page_poison: remove CONFIG_PAGE_POISONING_NO_SANITY 2021-03-24 15:09:17 -07:00
page_reporting.c
page_reporting.h
page_vma_mapped.c
page-writeback.c ANDROID: vendor_hooks: add hook to balance_dirty_pages() 2021-05-20 19:38:42 +00:00
pagewalk.c
percpu-internal.h percpu: make pcpu_nr_empty_pop_pages per chunk type 2021-04-14 08:42:03 +02:00
percpu-km.c
percpu-stats.c percpu: make pcpu_nr_empty_pop_pages per chunk type 2021-04-14 08:42:03 +02:00
percpu-vm.c
percpu.c Merge 5.10.30 into android12-5.10 2021-04-15 14:23:41 +02:00
pgalloc-track.h
pgtable-generic.c
process_vm_access.c mm/process_vm_access.c: include compat.h 2021-01-19 18:27:21 +01:00
ptdump.c This is the 5.10.32 stable release 2021-04-22 11:12:08 +02:00
readahead.c ANDROID: mm: Create vendor hooks to control ZONE_MOVABLE allocations 2020-12-01 18:07:54 +00:00
rmap.c FROMLIST: mm: introduce __page_add_new_anon_rmap() 2021-01-22 18:00:48 +00:00
rodata_test.c
shmem.c ANDROID: mm: allow fast reclaim of shmem pages 2021-06-09 15:33:55 -07:00
shuffle.c
shuffle.h
slab_common.c FROMGIT: mm: slub: move sysfs slab alloc/free interfaces to debugfs 2021-06-15 18:11:57 +00:00
slab.c Merge 5.10.37 into android12-5.10 2021-05-15 09:28:55 +02:00
slab.h FROMGIT: mm: slub: move sysfs slab alloc/free interfaces to debugfs 2021-06-15 18:11:57 +00:00
slob.c
slub.c FROMGIT: mm: slub: fix the leak of alloc/free traces debugfs interface 2021-06-28 16:17:37 +00:00
sparse-vmemmap.c
sparse.c mm/sparse: add the missing sparse_buffer_fini() in error branch 2021-05-14 09:50:45 +02:00
swap_cgroup.c
swap_slots.c
swap_state.c FROMLIST: mm: protect VMA modifications using VMA sequence count 2021-01-22 17:59:47 +00:00
swap.c ANDROID: mm: allow fast reclaim of shmem pages 2021-06-09 15:33:55 -07:00
swapfile.c This is the 5.10.21 stable release 2021-03-07 12:53:30 +01:00
truncate.c
usercopy.c
userfaultfd.c FROMGIT: userfaultfd/shmem: modify shmem_mfill_atomic_pte to use install_pte() 2021-06-04 19:13:10 +00:00
util.c
vmacache.c
vmalloc.c ANDROID: vendor_hooks: add hooks for slab memory leak debugging 2021-05-21 13:17:08 -07:00
vmpressure.c
vmscan.c ANDROID: vendor_hooks: Export direct reclaim trace points 2021-06-24 17:05:05 +00:00
vmstat.c ANDROID: mm: allow vmas with vm_ops to be speculatively handled 2021-04-23 18:42:39 -07:00
workingset.c
z3fold.c z3fold: prevent reclaim/free race for headless pages 2021-03-30 14:31:54 +02:00
zbud.c
zpool.c
zsmalloc.c This is the 5.10.21 stable release 2021-03-07 12:53:30 +01:00
zswap.c