WSL2-Linux-Kernel/mm
Matthew Wilcox (Oracle) 69a37a8ba1 mm/huge_memory: Fix xarray node memory leak
If xas_split_alloc() fails to allocate the necessary nodes to complete the
xarray entry split, it sets the xa_state to -ENOMEM, which xas_nomem()
then interprets as "Please allocate more memory", not as "Please free
any unnecessary memory" (which was the intended outcome).  It's confusing
to use xas_nomem() to free memory in this context, so call xas_destroy()
instead.

Reported-by: syzbot+9e27a75a8c24f3fe75c1@syzkaller.appspotmail.com
Fixes: 6b24ca4a1a ("mm: Use multi-index entries in the page cache")
Cc: stable@vger.kernel.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2022-06-09 16:24:25 -04:00
..
damon mm: damon: use HPAGE_PMD_SIZE 2022-05-19 14:08:55 -07:00
kasan mm: kasan: fix input of vmalloc_to_page() 2022-05-27 09:33:46 -07:00
kfence Yang Shi has improved the behaviour of khugepaged collapsing of readonly 2022-05-26 12:32:41 -07:00
Kconfig mm: Kconfig: reorganize misplaced mm options 2022-05-27 09:33:47 -07:00
Kconfig.debug Two followon fixes for the post-5.19 series "Use pageblock_order for cma 2022-05-27 11:40:49 -07:00
Makefile mm: hugetlb_vmemmap: cleanup CONFIG_HUGETLB_PAGE_FREE_VMEMMAP* 2022-04-28 23:16:15 -07:00
backing-dev.c blk-cgroup: remove unneeded includes from <linux/blk-cgroup.h> 2022-05-02 14:06:20 -06:00
balloon_compaction.c
bootmem_info.c
cma.c Revert "mm/cma.c: remove redundant cma_mutex lock" 2022-05-13 15:11:26 -07:00
cma.h
cma_debug.c
cma_sysfs.c
compaction.c mm, compaction: fast_find_migrateblock() should return pfn in the target zone 2022-05-13 16:48:57 -07:00
debug.c
debug_page_ref.c
debug_vm_pgtable.c mm/debug_vm_pgtable: add tests for __HAVE_ARCH_PTE_SWP_EXCLUSIVE 2022-05-09 18:20:45 -07:00
dmapool.c
early_ioremap.c
fadvise.c riscv: compat: syscall: Add compat_sys_call_table implementation 2022-04-26 13:36:25 -07:00
failslab.c mm: fix missing handler for __GFP_NOWARN 2022-05-19 14:08:55 -07:00
filemap.c filemap: Cache the value of vm_flags 2022-06-09 16:24:25 -04:00
folio-compat.c fs: Remove aop flags parameter from grab_cache_page_write_begin() 2022-05-08 14:28:19 -04:00
frontswap.c
gup.c Yang Shi has improved the behaviour of khugepaged collapsing of readonly 2022-05-26 12:32:41 -07:00
gup_test.c
gup_test.h
highmem.c highmem: fix checks in __kmap_local_sched_{in,out} 2022-04-08 14:20:36 -10:00
hmm.c mm: teach core mm about pte markers 2022-05-13 07:20:09 -07:00
huge_memory.c mm/huge_memory: Fix xarray node memory leak 2022-06-09 16:24:25 -04:00
hugetlb.c delayacct: track delays from write-protect copy 2022-06-01 15:55:25 -07:00
hugetlb_cgroup.c
hugetlb_vmemmap.c mm: hugetlb_vmemmap: fix CONFIG_HUGETLB_PAGE_FREE_VMEMMAP_DEFAULT_ON 2022-06-01 15:57:16 -07:00
hugetlb_vmemmap.h mm: hugetlb_vmemmap: cleanup CONFIG_HUGETLB_PAGE_FREE_VMEMMAP* 2022-04-28 23:16:15 -07:00
hwpoison-inject.c mm/hwpoison: disable hwpoison filter during removing 2022-05-13 07:20:19 -07:00
init-mm.c
internal.h mm: split free page with properly free memory accounting and without race 2022-05-27 09:33:43 -07:00
interval_tree.c
io-mapping.c
ioremap.c
khugepaged.c mm: khugepaged: introduce khugepaged_enter_vma() helper 2022-05-19 14:08:50 -07:00
kmemleak.c mm: kmemleak: take a full lowmem check in kmemleak_*_phys() 2022-04-15 14:49:56 -07:00
ksm.c ksm: fix typo in comment 2022-05-25 10:47:48 -07:00
list_lru.c mm/list_lru.c: revert "mm/list_lru: optimize memcg_reparent_list_lru_node()" 2022-04-08 14:20:36 -10:00
maccess.c
madvise.c mm: filter out swapin error entry in shmem mapping 2022-05-27 09:33:46 -07:00
mapping_dirty_helpers.c
memblock.c
memcontrol.c zswap: memcg accounting 2022-05-19 14:08:53 -07:00
memfd.c
memory-failure.c Yang Shi has improved the behaviour of khugepaged collapsing of readonly 2022-05-26 12:32:41 -07:00
memory.c delayacct: track delays from write-protect copy 2022-06-01 15:55:25 -07:00
memory_hotplug.c mm: hugetlb_vmemmap: add hugetlb_optimize_vmemmap sysctl 2022-05-13 16:48:56 -07:00
mempolicy.c mm/mempolicy: fix uninit-value in mpol_rebind_policy() 2022-05-19 14:08:54 -07:00
mempool.c
memremap.c mm/memremap: fix missing call to untrack_pfn() in pagemap_range() 2022-06-01 15:57:16 -07:00
memtest.c
migrate.c Yang Shi has improved the behaviour of khugepaged collapsing of readonly 2022-05-26 12:32:41 -07:00
migrate_device.c mm: remember exclusively mapped anonymous pages with PG_anon_exclusive 2022-05-09 18:20:44 -07:00
mincore.c mm: teach core mm about pte markers 2022-05-13 07:20:09 -07:00
mlock.c mm/munlock: protect the per-CPU pagevec by a local_lock_t 2022-04-01 11:46:09 -07:00
mm_init.c
mmap.c powerpc updates for 5.19 2022-05-28 11:27:17 -07:00
mmap_lock.c
mmu_gather.c mm/mmu_gather: limit free batch count and add schedule point in tlb_batch_pages_flush 2022-04-28 23:16:12 -07:00
mmu_notifier.c mm/mmu_notifier.c: fix race in mmu_interval_notifier_remove() 2022-04-21 20:01:10 -07:00
mmzone.c
mprotect.c mm/hugetlb: handle UFFDIO_WRITEPROTECT 2022-05-13 07:20:11 -07:00
mremap.c Yang Shi has improved the behaviour of khugepaged collapsing of readonly 2022-05-26 12:32:41 -07:00
msync.c
nommu.c no-MMU: expose vmalloc_huge() for alloc_large_system_hash() 2022-04-25 10:11:49 -07:00
oom_kill.c mm/oom_kill.c: fix vm_oom_kill_table[] ifdeffery 2022-06-01 15:57:16 -07:00
page-writeback.c sysctl changes for v5.19-rc1 2022-05-26 16:57:20 -07:00
page_alloc.c Two followon fixes for the post-5.19 series "Use pageblock_order for cma 2022-05-27 11:40:49 -07:00
page_counter.c
page_ext.c mm: use for_each_online_node and node_online instead of open coding 2022-04-29 14:36:58 -07:00
page_idle.c mm: don't be stuck to rmap lock on reclaim path 2022-05-19 14:08:54 -07:00
page_io.c Yang Shi has improved the behaviour of khugepaged collapsing of readonly 2022-05-26 12:32:41 -07:00
page_isolation.c mm: page_isolation: use compound_nr() correctly in isolate_single_pageblock() 2022-06-01 15:57:16 -07:00
page_owner.c Yang Shi has improved the behaviour of khugepaged collapsing of readonly 2022-05-26 12:32:41 -07:00
page_poison.c
page_reporting.c
page_reporting.h
page_table_check.c Six hotfixes. One from Miaohe Lin is considered a minor thing so it isn't 2022-05-27 11:29:35 -07:00
page_vma_mapped.c mm: pvmw: add support for walking devmap pages 2022-04-28 23:16:10 -07:00
pagewalk.c
percpu-internal.h percpu: improve percpu_alloc_percpu event trace 2022-05-13 07:20:18 -07:00
percpu-km.c
percpu-stats.c
percpu-vm.c
percpu.c percpu: improve percpu_alloc_percpu event trace 2022-05-13 07:20:18 -07:00
pgalloc-track.h
pgtable-generic.c mm: avoid unnecessary flush on change_huge_pmd() 2022-05-13 07:20:05 -07:00
process_vm_access.c
ptdump.c
readahead.c filemap: Don't release a locked folio 2022-06-09 16:24:25 -04:00
rmap.c mm: don't be stuck to rmap lock on reclaim path 2022-05-19 14:08:54 -07:00
rodata_test.c
secretmem.c secretmem: Convert to free_folio 2022-05-09 23:12:53 -04:00
shmem.c Two followon fixes for the post-5.19 series "Use pageblock_order for cma 2022-05-27 11:40:49 -07:00
shuffle.c
shuffle.h
slab.c Yang Shi has improved the behaviour of khugepaged collapsing of readonly 2022-05-26 12:32:41 -07:00
slab.h slab changes for 5.19 2022-05-25 10:24:04 -07:00
slab_common.c Yang Shi has improved the behaviour of khugepaged collapsing of readonly 2022-05-26 12:32:41 -07:00
slob.c mm: make minimum slab alignment a runtime property 2022-05-13 07:20:07 -07:00
slub.c slab changes for 5.19 2022-05-25 10:24:04 -07:00
sparse-vmemmap.c mm/sparse-vmemmap: improve memory savings for compound devmaps 2022-04-28 23:16:16 -07:00
sparse.c mm/memory-failure.c: move clear_hwpoisoned_pages 2022-05-13 07:20:19 -07:00
swap.c mm/swap: fix the comment of get_kernel_pages 2022-05-19 14:08:52 -07:00
swap.h swap: convert add_to_swap() to take a folio 2022-05-13 07:20:15 -07:00
swap_cgroup.c
swap_slots.c mm/swap: remove buggy cache->nr check in refill_swap_slots_cache 2022-05-19 14:08:51 -07:00
swap_state.c mm: filter out swapin error entry in shmem mapping 2022-05-27 09:33:46 -07:00
swapfile.c Two followon fixes for the post-5.19 series "Use pageblock_order for cma 2022-05-27 11:40:49 -07:00
truncate.c
usercopy.c mm: usercopy: move the virt_addr_valid() below the is_vmalloc_addr() 2022-05-16 16:02:21 -07:00
userfaultfd.c mm/uffd: enable write protection for shmem & hugetlbfs 2022-05-13 07:20:11 -07:00
util.c powerpc updates for 5.19 2022-05-28 11:27:17 -07:00
vmacache.c
vmalloc.c mm/vmalloc: use raw_cpu_ptr() for vmap_block_queue access 2022-05-13 07:20:18 -07:00
vmpressure.c
vmscan.c Yang Shi has improved the behaviour of khugepaged collapsing of readonly 2022-05-26 12:32:41 -07:00
vmstat.c Bitmap patches for 5.19-rc1 2022-06-04 14:04:27 -07:00
workingset.c memcg: sync flush only if periodic flush is delayed 2022-04-21 20:01:09 -07:00
z3fold.c mm/z3fold: fix z3fold_page_migrate races with z3fold_map 2022-05-27 09:33:44 -07:00
zbud.c
zpool.c
zsmalloc.c zsmalloc: fix races between asynchronous zspage free and page migration 2022-05-13 15:11:26 -07:00
zswap.c zswap: memcg accounting 2022-05-19 14:08:53 -07:00