MIRRORS/linux-yocto
1
0
Fork 0
mirror of git://git.yoctoproject.org/linux-yocto.git synced 2025-10-22 23:13:01 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity
8f65ac0b75
linux-yocto/mm
History
Isaac J. Manjarres 8f65ac0b75 mm/memfd: use strncpy_from_user() to read memfd name 
The existing logic uses strnlen_user() to calculate the length of the
memfd name from userspace and then copies the string into a buffer using
copy_from_user().  This is error-prone, as the string length could have
changed between the time when it was calculated and when the string was
copied.  The existing logic handles this by ensuring that the last byte in
the buffer is the terminating zero.

This handling is contrived and can better be handled by using
strncpy_from_user(), which gets the length of the string and copies it in
one shot.  Therefore, simplify the logic for copying the memfd name by
using strncpy_from_user().

No functional change.

Link: https://lkml.kernel.org/r/20250110165904.3437374-3-isaacmanjarres@google.com
Signed-off-by: Isaac J. Manjarres <isaacmanjarres@google.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: John Stultz <jstultz@google.com>
Cc: Kalesh Singh <kaleshsingh@google.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-01-25 20:22:40 -08:00
..
damon mm/damon/sysfs-schemes: add a file for setting damos_filter->allow 2025-01-25 20:22:32 -08:00
kasan mm:kasan: fix sparse warnings: Should it be static? 2025-01-13 22:40:42 -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/memblock: add memblock_alloc_or_panic interface 2025-01-25 20:22:38 -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/page_alloc: move set_page_refcounted() to callers of post_alloc_hook() 2025-01-13 22:40:31 -08:00
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
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 filemap: remove unused folio_add_wait_queue 2025-01-13 22:40:38 -08:00
folio-compat.c mm/writeback: add folio_mark_dirty_lock() 2024-11-05 11:14:32 +01:00
gup_test.c
gup_test.h
gup.c mm/hugetlb: support FOLL_FORCE|FOLL_WRITE 2025-01-13 22:40:51 -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.c: rename shadowed local 2025-01-25 20:22:18 -08:00
hugetlb_cgroup.c mm/hugetlb_cgroup: avoid useless return in void function 2025-01-13 22:40:34 -08:00
hugetlb_vmemmap.c mm/hugetlb_vmemmap: don't synchronize_rcu() without HVO 2024-09-01 20:25:45 -07:00
hugetlb_vmemmap.h
hugetlb.c mm/hugetlb: unify restore reserve accounting for new allocations 2025-01-25 20:22:31 -08:00
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 mseal: remove can_do_mseal() 2025-01-13 22:40:51 -08:00
interval_tree.c
io-mapping.c
ioremap.c
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 mm: khugepaged: recheck pmd state in retract_page_tables() 2025-01-13 22:40:46 -08:00
kmemleak.c mm/kmemleak: fix percpu memory leak detection failure 2025-01-12 19:03:34 -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: 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: pgtable: reclaim empty PTE page in madvise(MADV_DONTNEED) 2025-01-13 22:40:48 -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
memblock.c mm/memblock: add memblock_alloc_or_panic interface 2025-01-25 20:22:38 -08:00
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: fix soft lockup in the OOM process 2025-01-25 20:22:35 -08:00
memfd.c mm/memfd: use strncpy_from_user() to read memfd name 2025-01-25 20:22:40 -08:00
memory_hotplug.c mm: add build-time option for hotplug memory default online type 2025-01-25 20:22:21 -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: pgtable: introduce pagetable_dtor() 2025-01-25 20:22:22 -08:00
mempolicy.c mm: alloc_pages_bulk: rename API 2025-01-25 20:22:31 -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/migrate: remove slab checks in isolate_movable_page() 2025-01-13 22:40:58 -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 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: clear uffd-wp PTE/PMD state on mremap() 2025-01-12 19:03:37 -08:00
mseal.c mseal: remove can_do_mseal() 2025-01-13 22:40:51 -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/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 memcg: fix soft lockup in the OOM process 2025-01-25 20:22:35 -08:00
page_alloc.c mm: alloc_pages_bulk_noprof: drop page_list argument 2025-01-25 20:22:31 -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_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/page_isolation: don't pass gfp flags to start_isolate_page_range() 2025-01-13 22:40:44 -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
page_reporting.c
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 mm: fix div by zero in bdi_ratio_from_pages 2025-01-12 19:03:36 -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/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 readahead: properly shorten readahead when falling back to do_page_cache_ra() 2025-01-13 22:40:45 -08:00
rmap.c mm: mass constification of folio/page pointers 2024-11-07 14:38:07 -08:00
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 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: skip swapcache for swapin of synchronous swap device 2025-01-25 20:22:30 -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
shuffle.h
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 mm/migrate: remove slab checks in isolate_movable_page() 2025-01-13 22:40:58 -08:00
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/swap_cgroup: decouple swap cgroup recording and clearing 2025-01-25 20:22:19 -08:00
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/mglru: rework workingset protection 2025-01-25 20:22:39 -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_slots: remove slot cache for freeing path 2025-01-25 20:22:37 -08:00
truncate.c - The series "zram: optimal post-processing target selection" from 2024-11-23 09:58:07 -08:00
usercopy.c
userfaultfd.c mm: userfaultfd: recheck dst_pmd entry in move_pages_pte() 2025-01-13 22:40:46 -08:00
util.c mm: add comments to do_mmap(), mmap_region() and vm_mmap() 2025-01-13 22:40:59 -08:00
vma_internal.h mm/vma: move brk() internals to mm/vma.c 2025-01-13 22:40:42 -08:00
vma.c mm: make mmap_region() internal 2025-01-25 20:22:38 -08:00
vma.h mm: make mmap_region() internal 2025-01-25 20:22:38 -08:00
vmalloc.c mm: alloc_pages_bulk: rename API 2025-01-25 20:22:31 -08:00
vmpressure.c
vmscan.c mm/mglru: fix PTE-mapped large folios 2025-01-25 20:22:39 -08:00
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: introduce __zpdesc_clear/set_zsmalloc() 2025-01-25 20:22:35 -08:00
zswap.c mm/zswap: add LRU_STOP to comment about dropping the lru lock 2025-01-13 22:40:30 -08:00