Eric W. Biederman 9230738308 coredump: Don't perform any cleanups before dumping core ... Rename coredump_exit_mm to coredump_task_exit and call it from do_exit before PTRACE_EVENT_EXIT, and before any cleanup work for a task happens. This ensures that an accurate copy of the process can be captured in the coredump as no cleanup for the process happens before the coredump completes. This also ensures that PTRACE_EVENT_EXIT will not be visited by any thread until the coredump is complete. Add a new flag PF_POSTCOREDUMP so that tasks that have passed through coredump_task_exit can be recognized and ignored in zap_process. Now that all of the coredumping happens before exit_mm remove code to test for a coredump in progress from mm_release. Replace "may_ptrace_stop()" with a simple test of "current->ptrace". The other tests in may_ptrace_stop all concern avoiding stopping during a coredump. These tests are no longer necessary as it is now guaranteed that fatal_signal_pending will be set if the code enters ptrace_stop during a coredump. The code in ptrace_stop is guaranteed not to stop if fatal_signal_pending returns true. Until this change "ptrace_event(PTRACE_EVENT_EXIT)" could call ptrace_stop without fatal_signal_pending being true, as signals are dequeued in get_signal before calling do_exit. This is no longer an issue as "ptrace_event(PTRACE_EVENT_EXIT)" is no longer reached until after the coredump completes. Link: https://lkml.kernel.org/r/874kaax26c.fsf@disp2133 Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>		2021-10-06 11:28:39 -05:00
..
damon	mm/damon: add kunit tests	2021-09-08 11:50:25 -07:00
kasan	Merge branch 'akpm' (patches from Andrew)	2021-09-03 10:08:28 -07:00
kfence	Merge branch 'akpm' (patches from Andrew)	2021-09-08 12:55:35 -07:00
backing-dev.c	Merge branch 'akpm' (patches from Andrew)	2021-09-03 10:08:28 -07:00
balloon_compaction.c	mm: fix typos in comments	2021-05-07 00:26:35 -07:00
bootmem_info.c	mm/bootmem_info.c: mark __init on register_page_bootmem_info_section	2021-09-03 09:58:14 -07:00
cleancache.c
cma_debug.c	mm/cma: change cma mutex to irq safe spinlock	2021-05-05 11:27:21 -07:00
cma_sysfs.c	mm: cma: support sysfs	2021-05-05 11:27:24 -07:00
cma.c	mm: use proper type for cma_[alloc|release]	2021-05-05 11:27:24 -07:00
cma.h	mm: cma: support sysfs	2021-05-05 11:27:24 -07:00
compaction.c	Merge branch 'akpm' (patches from Andrew)	2021-09-08 12:55:35 -07:00
debug_page_ref.c
debug_vm_pgtable.c	mm/debug_vm_pgtable: fix corrupted page flag	2021-09-03 09:58:10 -07:00
debug.c	mm/debug: factor PagePoisoned out of __dump_page	2021-06-29 10:53:53 -07:00
dmapool.c	mm/dmapool: use DEVICE_ATTR_RO macro	2021-06-29 10:53:52 -07:00
early_ioremap.c	mm/early_ioremap.c: remove redundant early_ioremap_shutdown()	2021-09-08 11:50:24 -07:00
fadvise.c
failslab.c
filemap.c	Merge branch 'akpm' (patches from Andrew)	2021-09-03 10:08:28 -07:00
frontswap.c	mm/mempool: minor coding style tweaks	2021-05-05 11:27:27 -07:00
gup_test.c	selftests/vm: gup_test: test faulting in kernel, and verify pinnable pages	2021-05-05 11:27:26 -07:00
gup_test.h	selftests/vm: gup_test: fix test flag	2021-05-05 11:27:26 -07:00
gup.c	Revert "mm/gup: remove try_get_page(), call try_get_compound_head() directly"	2021-09-07 11:03:45 -07:00
highmem.c	mm: in_irq() cleanup	2021-09-08 11:50:24 -07:00
hmm.c	mm/hmm: bypass devmap pte when all pfn requested flags are fulfilled	2021-09-08 18:45:52 -07:00
huge_memory.c	mm,do_huge_pmd_numa_page: remove unnecessary TLB flushing code	2021-09-03 09:58:13 -07:00
hugetlb_cgroup.c	hugetlb: make free_huge_page irq safe	2021-05-05 11:27:22 -07:00
hugetlb_vmemmap.c	mm: hugetlb: introduce CONFIG_HUGETLB_PAGE_FREE_VMEMMAP_DEFAULT_ON	2021-06-30 20:47:26 -07:00
hugetlb_vmemmap.h	mm: hugetlb: introduce nr_free_vmemmap_pages in the struct hstate	2021-06-30 20:47:25 -07:00
hugetlb.c	mm/hugetlb: add support for mempolicy MPOL_PREFERRED_MANY	2021-09-03 09:58:17 -07:00
hwpoison-inject.c	mm: hwpoison: don't drop slab caches for offlining non-LRU page	2021-09-03 09:58:15 -07:00
init-mm.c	mm: add setup_initial_init_mm() helper	2021-07-08 11:48:21 -07:00
internal.h	mm/numa: automatically generate node migration order	2021-09-03 09:58:16 -07:00
interval_tree.c	mm/interval_tree: add comments to improve code readability	2021-04-30 11:20:38 -07:00
io-mapping.c	mm: add a io_mapping_map_user helper	2021-04-30 11:20:39 -07:00
ioremap.c	mm: move ioremap_page_range to vmalloc.c	2021-09-08 11:50:24 -07:00
Kconfig	mm/idle_page_tracking: make PG_idle reusable	2021-09-08 11:50:24 -07:00
Kconfig.debug	mm, page_poison: remove CONFIG_PAGE_POISONING_ZERO	2020-12-15 12:13:46 -08:00
khugepaged.c	huge tmpfs: SGP_NOALLOC to stop collapse_file() on race	2021-09-03 09:58:12 -07:00
kmemleak.c	mm/kmemleak: allow __GFP_NOLOCKDEP passed to kmemleak's gfp	2021-09-08 18:45:53 -07:00
ksm.c	mm: KSM: fix data type	2021-09-03 09:58:18 -07:00
list_lru.c	mm: vmscan: consolidate shrinker_maps handling code	2021-05-05 11:27:23 -07:00
maccess.c	ARM: 9115/1: mm/maccess: fix unaligned copy_{from,to}_kernel_nofault	2021-08-20 11:39:25 +01:00
madvise.c	Merge branch 'akpm' (patches from Andrew)	2021-09-03 10:08:28 -07:00
Makefile	mm: introduce Data Access MONitor (DAMON)	2021-09-08 11:50:24 -07:00
mapping_dirty_helpers.c	mm/mapping_dirty_helpers: remove double Note in kerneldoc	2021-07-01 11:06:02 -07:00
memblock.c	Merge branch 'akpm' (patches from Andrew)	2021-09-03 10:08:28 -07:00
memcontrol.c	Merge branch 'akpm' (patches from Andrew)	2021-09-03 10:08:28 -07:00
memfd.c	Reimplement RLIMIT_MEMLOCK on top of ucounts	2021-04-30 14:14:02 -05:00
memory_hotplug.c	Merge branch 'akpm' (patches from Andrew)	2021-09-08 12:55:35 -07:00
memory-failure.c	Merge branch 'akpm' (patches from Andrew)	2021-09-03 10:08:28 -07:00
memory.c	mm: fix the deadlock in finish_fault()	2021-07-23 17:43:28 -07:00
mempolicy.c	Merge branches 'akpm' and 'akpm-hotfixes' (patches from Andrew)	2021-09-08 18:52:05 -07:00
mempool.c	kasan: use separate (un)poison implementation for integrated init	2021-06-04 19:32:21 +01:00
memremap.c	mm/memory_hotplug: remove nid parameter from arch_remove_memory()	2021-09-08 11:50:23 -07:00
memtest.c
migrate.c	compat: remove some compat entry points	2021-09-08 15:32:35 -07:00
mincore.c	inode: make init and permission helpers idmapped mount aware	2021-01-24 14:27:16 +01:00
mlock.c	mm: introduce memfd_secret system call to create "secret" memory areas	2021-07-08 11:48:21 -07:00
mm_init.c	include/linux/page-flags-layout.h: cleanups	2021-04-30 11:20:42 -07:00
mmap_lock.c	mm: mmap_lock: fix disabling preemption directly	2021-07-23 17:43:28 -07:00
mmap.c	Merge tag 'denywrite-for-5.15' of git://github.com/davidhildenbrand/linux	2021-09-04 11:35:47 -07:00
mmu_gather.c	mm: eliminate "expecting prototype" kernel-doc warnings	2021-04-16 16:10:36 -07:00
mmu_notifier.c	mm/mmu_notifiers: ensure range_end() is paired with range_start()	2021-03-25 09:22:55 -07:00
mmzone.c	mm/lru: replace pgdat lru_lock with lruvec lock	2020-12-15 14:48:04 -08:00
mprotect.c	mm: device exclusive memory access	2021-07-01 11:06:03 -07:00
mremap.c	mm/mremap: fix memory account on do_munmap() failure	2021-09-03 09:58:14 -07:00
msync.c	mm/msync: exit early when the flags is an MS_ASYNC and start < vm_start	2021-04-30 11:20:37 -07:00
nommu.c	Merge tag 'denywrite-for-5.15' of git://github.com/davidhildenbrand/linux	2021-09-04 11:35:47 -07:00
oom_kill.c	coredump: Don't perform any cleanups before dumping core	2021-10-06 11:28:39 -05:00
page_alloc.c	mm/page_alloc.c: avoid accessing uninitialized pcp page migratetype	2021-09-08 18:45:53 -07:00
page_counter.c	mm: page_counter: mitigate consequences of a page_counter underflow	2021-04-30 11:20:38 -07:00
page_ext.c	mm/idle_page_tracking: make PG_idle reusable	2021-09-08 11:50:24 -07:00
page_idle.c	mm/idle_page_tracking: make PG_idle reusable	2021-09-08 11:50:24 -07:00
page_io.c	swap: fix swapfile read/write offset	2021-03-02 17:25:46 -07:00
page_isolation.c	Merge branch 'akpm' (patches from Andrew)	2021-09-08 12:55:35 -07:00
page_owner.c	mm: remove pfn_valid_within() and CONFIG_HOLES_IN_ZONE	2021-09-08 11:50:22 -07:00
page_poison.c	mm: page_poison: print page info when corruption is caught	2021-04-30 11:20:36 -07:00
page_reporting.c	mm/page_reporting: allow driver to specify reporting order	2021-06-29 10:53:47 -07:00
page_reporting.h	mm/page_reporting: export reporting order as module parameter	2021-06-29 10:53:47 -07:00
page_vma_mapped.c	mm: device exclusive memory access	2021-07-01 11:06:03 -07:00
page-writeback.c	Merge branch 'akpm' (patches from Andrew)	2021-09-03 10:08:28 -07:00
pagewalk.c	mm: pagewalk: fix walk for hugepage tables	2021-06-29 10:53:49 -07:00
percpu-internal.h	Merge branch 'for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu	2021-07-01 17:17:24 -07:00
percpu-km.c	percpu: flush tlb in pcpu_reclaim_populated()	2021-07-04 18:30:17 +00:00
percpu-stats.c	percpu: rework memcg accounting	2021-06-05 20:43:15 +00:00
percpu-vm.c	percpu: flush tlb in pcpu_reclaim_populated()	2021-07-04 18:30:17 +00:00
percpu.c	Merge branch 'akpm' (patches from Andrew)	2021-09-08 12:55:35 -07:00
pgalloc-track.h	mm: fix typos in comments	2021-05-07 00:26:35 -07:00
pgtable-generic.c	mm/thp: fix __split_huge_pmd_locked() on shmem migration entry	2021-06-16 09:24:42 -07:00
process_vm_access.c	mm/process_vm_access.c: remove duplicate include	2021-05-05 11:27:27 -07:00
ptdump.c	mm: ptdump: fix build failure	2021-04-16 16:10:37 -07:00
readahead.c	mm: Protect operations adding pages to page cache with invalidate_lock	2021-07-13 13:14:27 +02:00
rmap.c	Merge branch 'akpm' (patches from Andrew)	2021-09-08 12:55:35 -07:00
rodata_test.c
secretmem.c	mm/secretmem: use refcount_t instead of atomic_t	2021-09-08 11:50:24 -07:00
shmem.c	Merge branch 'akpm' (patches from Andrew)	2021-09-03 10:08:28 -07:00
shuffle.c	mm: eliminate "expecting prototype" kernel-doc warnings	2021-04-16 16:10:36 -07:00
shuffle.h	mm/shuffle: fix section mismatch warning	2021-05-22 15:09:07 -10:00
slab_common.c	mm: slub: move flush_cpu_slab() invocations __free_slab() invocations out of IRQ context	2021-09-04 01:12:23 +02:00
slab.c	mm: fix typos in comments	2021-05-07 00:26:35 -07:00
slab.h	mm/memcg: fix NULL pointer dereference in memcg_slab_free_hook()	2021-07-30 10:14:39 -07:00
slob.c	mm: Don't build mm_dump_obj() on CONFIG_PRINTK=n kernels	2021-03-08 14:18:46 -08:00
slub.c	mm, slub: convert kmem_cpu_slab protection to local_lock	2021-09-04 10:22:01 +02:00
sparse-vmemmap.c	mm: sparsemem: split the huge PMD mapping of vmemmap pages	2021-06-30 20:47:26 -07:00
sparse.c	mm: introduce memmap_alloc() to unify memory map allocation	2021-09-03 09:58:15 -07:00
swap_cgroup.c
swap_slots.c	mm: Replace deprecated CPU-hotplug functions.	2021-08-28 01:46:17 +02:00
swap_state.c	Revert "mm: swap: check if swap backing device is congested or not"	2021-08-20 11:31:42 -07:00
swap.c	mm: delete unused get_kernel_page()	2021-09-03 09:58:11 -07:00
swapfile.c	mm, memcg: inline swap-related functions to improve disabled memcg config	2021-09-03 09:58:12 -07:00
truncate.c	Merge branch 'akpm' (patches from Andrew)	2021-09-03 10:08:28 -07:00
usercopy.c
userfaultfd.c	userfaultfd: change mmap_changing to atomic	2021-09-03 09:58:16 -07:00
util.c	mm: don't allow oversized kvmalloc() calls	2021-09-02 09:47:01 -07:00
vmacache.c
vmalloc.c	Merge branch 'akpm' (patches from Andrew)	2021-09-08 12:55:35 -07:00
vmpressure.c	mm/vmpressure: replace vmpressure_to_css() with vmpressure_to_memcg()	2021-09-03 09:58:17 -07:00
vmscan.c	mm,vmscan: fix divide by zero in get_scan_count	2021-09-08 18:45:53 -07:00
vmstat.c	mm/vmstat: protect per cpu variables with preempt disable on RT	2021-09-08 15:32:34 -07:00
workingset.c	mm/workingset: correct kernel-doc notations	2021-09-08 11:50:28 -07:00
z3fold.c	mm/z3fold: add kerneldoc fields for z3fold_pool	2021-07-01 11:06:03 -07:00
zbud.c	mm/zbud: add kerneldoc fields for zbud_pool	2021-07-01 11:06:03 -07:00
zpool.c	mm: fix typos in comments	2021-05-07 00:26:35 -07:00
zsmalloc.c	mm/zsmalloc.c: improve readability for async_free_zspage()	2021-07-01 11:06:02 -07:00
zswap.c	mm/zswap.c: fix two bugs in zswap_writeback_entry()	2021-06-30 20:47:31 -07:00