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linux-next/mm
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Leo Stone d3ac65d274 mm: huge_memory: handle strsep not finding delimiter 
split_huge_pages_write() does not handle the case where strsep finds no
delimiter in the given string and sets the input buffer to NULL, which
allows this reproducer to trigger a protection fault.

Link: https://lkml.kernel.org/r/20241216042752.257090-2-leocstone@gmail.com
Signed-off-by: Leo Stone <leocstone@gmail.com>
Reported-by: syzbot+8a3da2f1bbf59227c289@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=8a3da2f1bbf59227c289
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-12-18 19:04:47 -08:00
..
damon
- The series "zram: optimal post-processing target selection" from
2024-11-23 09:58:07 -08:00
kasan
24 hotfixes. 17 are cc:stable. 15 are MM and 9 are non-MM.
2024-12-08 11:26:13 -08:00
kfence
mm/kfence: add a new kunit test test_use_after_free_read_nofault()
2024-11-14 22:49:19 -08:00
kmsan
mm, kasan, kmsan: instrument copy_from/to_kernel_nofault
2024-11-06 20:11:14 -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/cma: add sysfs file 'release_pages_success'
2024-02-22 10:24:57 -08:00
compaction.c
mm:page_alloc: fix the NULL ac->nodemask in __alloc_pages_slowpath()
2024-09-03 21:15:47 -07:00
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: open-code page_folio() in dump_page()
2024-12-05 19:54:45 -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.c: improve the execution efficiency of early_ioremap_setup()
2023-06-09 16:25:56 -07:00
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/filemap: don't call folio_test_locked() without a reference in next_uptodate_folio()
2024-12-05 19:54:47 -08:00
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
mm/gup_test: start/stop/read functionality for PIN LONGTERM test
2022-11-08 17:37:15 -08:00
gup.c
mm/gup: handle NULL pages in unpin_user_pages()
2024-12-05 19:54:42 -08:00
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: handle strsep not finding delimiter
2024-12-18 19:04:47 -08:00
hugetlb_cgroup.c
mm: memcg: don't call propagate_protected_usage() needlessly
2024-09-01 20:25:50 -07:00
hugetlb_vmemmap.c
mm/hugetlb_vmemmap: don't synchronize_rcu() without HVO
2024-09-01 20:25:45 -07:00
hugetlb_vmemmap.h
mm: hugetlb_vmemmap: fix reference to nonexistent file
2023-10-25 16:47:14 -07:00
hugetlb.c
mm: use aligned address in copy_user_gigantic_page()
2024-12-18 19:04:42 -08:00
hwpoison-inject.c
mm/hwpoison: add MODULE_DESCRIPTION()
2024-07-03 19:29:58 -07:00
init-mm.c
mm: Deprecate pasid field
2023-12-12 10:11:32 +01:00
internal.h
mm: use clear_user_(high)page() for arch with special user folio handling
2024-12-18 19:04:43 -08:00
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
arm64 updates for 6.13:
2024-11-18 18:10:37 -08:00
Kconfig.debug
slub: Introduce CONFIG_SLUB_RCU_DEBUG
2024-08-27 14:12:51 +02:00
khugepaged.c
mm: khugepaged: collapse_pte_mapped_thp() use pte_offset_map_rw_nolock()
2024-11-05 16:56:27 -08:00
kmemleak.c
kmemleak: iommu/iova: fix transient kmemleak false positive
2024-11-11 17:22:26 -08:00
ksm.c
- The series "zram: optimal post-processing target selection" from
2024-11-23 09:58:07 -08:00
list_lru.c
mm/list_lru: simplify the list_lru walk callback function
2024-11-11 17:22:26 -08:00
maccess.c
kasan: migrate copy_user_test to kunit
2024-11-11 00:26:44 -08:00
madvise.c
mm: madvise: implement lightweight guard page mechanism
2024-11-11 00:26:45 -08:00
Makefile
mm: move the page fragment allocator from page_alloc into its own file
2024-11-11 10:56:26 -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: allow zero threshold in validate_numa_converage()
2024-12-01 21:08:56 +02:00
memcontrol-v1.c
- The series "zram: optimal post-processing target selection" from
2024-11-23 09:58:07 -08:00
memcontrol-v1.h
mm: memcg: declare do_memsw_account inline
2024-12-05 19:54:46 -08:00
memcontrol.c
memcg/hugetlb: add hugeTLB counters to memcg
2024-11-14 22:49:19 -08:00
memfd.c
mm/hugetlb: simplify refs in memfd_alloc_folio
2024-09-26 14:01:44 -07:00
memory_hotplug.c
kaslr: rename physmem_end and PHYSMEM_END to direct_map_physmem_end
2024-11-06 20:11:11 -08:00
memory-failure.c
mm/memory-failure: replace sprintf() with sysfs_emit()
2024-11-11 00:26:46 -08:00
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: use clear_user_(high)page() for arch with special user folio handling
2024-12-18 19:04:43 -08:00
mempolicy.c
mm/mempolicy: fix migrate_to_node() assuming there is at least one VMA in a MM
2024-12-05 19:54:43 -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: remap unused subpages to shared zeropage when splitting isolated thp
2024-09-09 16:39:03 -07:00
migrate.c
mm/codetag: swap tags when migrate pages
2024-12-05 19:54:46 -08:00
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
memblock: updates for 6.13-rc1
2024-11-27 11:13:25 -08:00
mm_slot.h
…
mmap_lock.c
mm: mmap_lock: check trace_mmap_lock_$type_enabled() instead of regcount
2024-11-11 17:22:28 -08:00
mmap.c
mm: respect mmap hint address when aligning for THP
2024-12-05 19:54:46 -08:00
mmu_gather.c
mm/mmu_gather: improve cond_resched() handling with large folios and expensive page freeing
2024-02-22 15:27:17 -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
- The series "zram: optimal post-processing target selection" from
2024-11-23 09:58:07 -08:00
mseal.c
mm: madvise: implement lightweight guard page mechanism
2024-11-11 00:26:45 -08:00
msync.c
…
nommu.c
nommu: pass NULL argument to vma_iter_prealloc()
2024-11-11 17:20:23 -08:00
numa_emulation.c
mm: introduce numa_emulation
2024-09-03 21:15:31 -07:00
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
numa.c
mm: make range-to-target_node lookup facility a part of numa_memblks
2024-09-03 21:15:32 -07:00
oom_kill.c
mm: move mm flags to mm_types.h
2024-11-05 16:56:26 -08:00
page_alloc.c
mm/page_alloc: don't call pfn_to_page() on possibly non-existent PFN in split_large_buddy()
2024-12-18 19:04:45 -08:00
page_counter.c
mm, memcg: cg2 memory{.swap,}.peak write handlers
2024-09-01 20:25:53 -07:00
page_ext.c
mm: don't account memmap per-node
2024-08-15 22:16:14 -07:00
page_frag_cache.c
mm: page_frag: use __alloc_pages() to replace alloc_pages_node()
2024-11-11 10:56:27 -08:00
page_idle.c
mm: page_idle: convert page idle to use a folio
2023-01-18 17:12:52 -08:00
page_io.c
mm: add per-order mTHP swpin counters
2024-11-11 00:26:43 -08:00
page_isolation.c
mm: remove migration for HugePage in isolate_single_pageblock()
2024-09-03 21:15:40 -07:00
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: mass constification of folio/page pointers
2024-11-07 14:38:07 -08:00
page-writeback.c
fuse update for 6.13
2024-11-26 12:41:27 -08:00
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: use page->private instead of page->index in percpu
2024-11-07 14:38:07 -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
ptdump.c
mm: ptdump: add check_wx_pages debugfs attribute
2024-02-22 10:24:47 -08:00
readahead.c
Revert "readahead: properly shorten readahead when falling back to do_page_cache_ra()"
2024-12-05 19:54:44 -08:00
rmap.c
mm: mass constification of folio/page pointers
2024-11-07 14:38:07 -08:00
rodata_test.c
…
secretmem.c
secretmem: disable memfd_secret() if arch cannot set direct map
2024-10-09 12:47:19 -07:00
shmem_quota.c
shmem_quota: build the object file conditionally to the config option
2024-09-01 20:25:45 -07:00
shmem.c
mm: shmem: fix ShmemHugePages at swapout
2024-12-18 19:04:42 -08:00
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
mm: shrinker: use min() to improve shrinker_debugfs_scan_write()
2024-09-03 21:15:40 -07:00
shrinker.c
mm: shrinker: avoid memleak in alloc_shrinker_info
2024-10-31 20:27:04 -07:00
shuffle.c
mm/shuffle: convert module_param_call to module_param_cb
2022-10-03 14:03:07 -07:00
shuffle.h
mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER
2024-01-08 15:27:15 -08:00
slab_common.c
slab updates for 6.13
2024-11-25 16:51:24 -08:00
slab.h
mm/slub: Avoid list corruption when removing a slab from the full list
2024-11-16 21:19:39 +01:00
slub.c
memcg: slub: fix SUnreclaim for post charged objects
2024-12-10 09:25:39 +01:00
sparse-vmemmap.c
mm: define general function pXd_init()
2024-11-11 17:22:27 -08:00
sparse.c
bootmem: stop using page->index
2024-11-07 14:38:07 -08:00
swap_cgroup.c
mm: attempt to batch free swap entries for zap_pte_range()
2024-09-03 21:15:33 -07:00
swap_slots.c
mm: swap: update get_swap_pages() to take folio order
2024-04-25 20:56:37 -07:00
swap_state.c
mm: swap: use str_true_false() helper function
2024-11-06 20:11:14 -08:00
swap.c
- The series "zram: optimal post-processing target selection" from
2024-11-23 09:58:07 -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: fix allocation and scanning race with swapoff
2024-11-14 15:25:07 -08:00
truncate.c
- The series "zram: optimal post-processing target selection" from
2024-11-23 09:58:07 -08:00
usercopy.c
mm: Fix copy_from_user_nofault().
2023-04-12 17:36:23 -07:00
userfaultfd.c
mm: remove unused hugepage for vma_alloc_folio()
2024-11-06 20:11:12 -08:00
util.c
- The series "resource: A couple of cleanups" from Andy Shevchenko
2024-11-25 16:09:48 -08:00
vma_internal.h
mm: isolate mmap internal logic to mm/vma.c
2024-11-06 20:11:19 -08:00
vma.c
mm: correctly reference merged VMA
2024-12-18 19:04:42 -08:00
vma.h
mm: isolate mmap internal logic to mm/vma.c
2024-11-06 20:11:19 -08:00
vmalloc.c
vmalloc: fix accounting with i915
2024-12-18 19:04:45 -08:00
vmpressure.c
eventfd: simplify eventfd_signal()
2023-11-28 14:08:38 +01:00
vmscan.c
mm/vmscan: wake up flushers conditionally to avoid cgroup OOM
2024-11-07 14:38:07 -08:00
vmstat.c
memcg/hugetlb: add hugeTLB counters to memcg
2024-11-14 22:49:19 -08:00
workingset.c
mm/list_lru: simplify the list_lru walk callback function
2024-11-11 17:22:26 -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
zpool.c
mm: zpool: return pool size in pages
2024-04-25 20:55:48 -07:00
zsmalloc.c
mm/zsmalloc: use memcpy_from/to_page whereever possible
2024-11-07 14:38:07 -08:00
zswap.c
mm/list_lru: simplify the list_lru walk callback function
2024-11-11 17:22:26 -08:00