memory mapping · Maintained

Maintainers

• M Andrew Morton <akpm@linux-foundation.org>
• M Liam R. Howlett <liam@infradead.org>
• M Lorenzo Stoakes <ljs@kernel.org>
• R Vlastimil Babka <vbabka@kernel.org>
• R Jann Horn <jannh@google.com>
• R Pedro Falcato <pfalcato@suse.de>

Paths

• F include/trace/events/mmap.h
• F fs/proc/task_mmu.c
• F fs/proc/task_nommu.c
• F mm/interval_tree.c
• F mm/mincore.c
• F mm/mlock.c
• F mm/mmap.c
• F mm/mprotect.c
• F mm/mremap.c
• F mm/mseal.c
• F mm/msync.c
• F mm/nommu.c
• F mm/vma.c
• F mm/vma.h
• F mm/vma_exec.c
• F mm/vma_init.c
• F mm/vma_internal.h
• F tools/testing/selftests/mm/merge.c
• F tools/testing/vma/

Last 30 days

Most active threads (last 7 days)

• COOLING5d Linux 6.18.37
  2026-06-27 10:21 · 1 reply in 7d · Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Active reviewers (last 30 days)

• Lorenzo Stoakes <ljs@kernel.org>
  2 attestations (1 Reviewed-by, 1 Tested-by) · last on 2026-06-04
• Isaac J. Manjarres <hidden>
  1 attestation (1 Tested-by) · last on 2026-06-04
• Balbir Singh <hidden>
  1 attestation (1 Reviewed-by) · last on 2026-06-04
• David Hildenbrand (Arm) <david@kernel.org>
  1 attestation (1 Acked-by) · last on 2026-06-04
• Oscar Salvador (SUSE) <osalvador@kernel.org>
  1 attestation (1 Reviewed-by) · last on 2026-06-04

Recent patches

Most-recent 30 patches in this subsystem on stable (capped at 30), ordered by date desc.

• DORMANTno replies Re: Linux 6.18.37
  2026-06-27 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM2d IN LINUX-NEXT [PATCH] mm: do file ownership checks with the proper mount idmap
  2026-06-25 · Pedro Falcato <pfalcato@suse.de>
• COOLING13d Re: Linux 7.0.13
  2026-06-19 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 6.18.36
  2026-06-19 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COOLING6d IN LINUX-NEXT [PATCH] mm: fix CONFIG_STACK_GROWSUP typo in tools/testing/vma/include/dup.h
  2026-06-11 · Ethan Nelson-Moore <hidden>
• DORMANTno replies Re: Linux 6.12.93
  2026-06-09 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COLD28d REVIEWED: 1 (0M) [PATCH 6.12.y 1/3] mm: perform all memfd seal checks in a single place
  2026-06-04 · Sasha Levin <sashal@kernel.org>
• COLD27d IN MM: 37 (35M) [PATCH v3 1/2] fs/proc/task_mmu: do not warn on seeing non-migration pmd entry
  2026-06-04 · Dev Jain <dev.jain@arm.com>
• COLD31d [PATCH v2 1/2] fs/proc/task_mmu: do not warn on seeing non-migration pmd entry
  2026-05-30 · Dev Jain <dev.jain@arm.com>
• COLD23d IN MM [PATCH 3/6] fs/proc/task_mmu: fix hugetlb self-deadlock in pagemap_scan_pte_hole()
  2026-05-29 · "Kiryl Shutsemau (Meta)" <kas@kernel.org>
• COLD23d IN MM [PATCH 2/6] fs/proc/task_mmu: use huge_page_size() in pagemap_scan_hugetlb_entry()
  2026-05-29 · "Kiryl Shutsemau (Meta)" <kas@kernel.org>
• COLD23d IN MM [PATCH 1/6] fs/proc/task_mmu: fix make_uffd_wp_huge_pte() prot-update race
  2026-05-29 · "Kiryl Shutsemau (Meta)" <kas@kernel.org>
• COLD31d [PATCH] fs/proc/task_mmu: do not warn on seeing non-migration pmd entry
  2026-05-29 · Dev Jain <dev.jain@arm.com>
• COLD31d [PATCH v5 01/18] fs/proc/task_mmu: fix make_uffd_wp_huge_pte() prot-update race
  2026-05-26 · Kiryl Shutsemau <hidden>
• COLD46d Re: Linux 7.0.9
  2026-05-17 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COOLING7d REVIEWED: 19 (16M) [PATCH v4 8/9] mm: propagate VM_SOFTDIRTY on merge
  2026-05-15 · Ahmed Elaidy <hidden>
• COOLING7d [PATCH v4 7/9] tools/testing/vma: add VMA sticky userland tests
  2026-05-15 · Ahmed Elaidy <hidden>
• COOLING7d REVIEWED: 17 (16M) [PATCH v4 5/9] mm: introduce copy-on-fork VMAs and make VM_MAYBE_GUARD one
  2026-05-15 · Ahmed Elaidy <hidden>
• COOLING7d REVIEWED: 2 (1M) [PATCH v4 4/9] mm: implement sticky VMA flags
  2026-05-15 · Ahmed Elaidy <hidden>
• COOLING7d REVIEWED: 2 (1M) [PATCH v4 3/9] mm: update vma_modify_flags() to handle residual flags, document
  2026-05-15 · Ahmed Elaidy <hidden>
• COOLING7d REVIEWED: 19 (18M) [PATCH v4 1/9] mm: introduce VM_MAYBE_GUARD and make visible in /proc/$pid/smaps
  2026-05-15 · Ahmed Elaidy <hidden>
• DORMANTno replies Re: Linux 6.12.88
  2026-05-14 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies [PATCH 7.0.y] mm/vma: do not try to unmap a VMA if mmap_prepare() invoked from mmap()
  2026-05-14 · Lorenzo Stoakes <ljs@kernel.org>
• COLD43d REVIEWED: 1 (0M) [PATCH 6.12 014/206] mm: convert mm_lock_seq to a proper seqcount
  2026-05-12 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COLD49d FAILED: patch "[PATCH] mm/vma: do not try to unmap a VMA if mmap_prepare() invoked" failed to apply to 7.0-stable tree
  2026-05-12 · <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 7.0.4
  2026-05-07 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COLD57d Re: Linux 6.18.27
  2026-05-07 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 6.12.86
  2026-05-07 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COLD48d [PATCH 6.18.y v3] mm: fix VM_SOFTDIRTY propagation on VMA merge
  2026-05-04 · Ahmed Elaidy <hidden>
• DORMANTno replies REVIEWED: 25 (25M) FAILED: patch "[PATCH] mm/mseal: update VMA end correctly on merge" failed to apply to 7.0-stable tree
  2026-05-03 · <gregkh@linuxfoundation.org>

Needs attention (review trailers in, no pickup)

Patches with review trailers that haven't landed in mainline and haven't been Acked by a maintainer. Oldest first.

• STALE161d REVIEWED: 3 (0M) FAILED: patch "[PATCH] mm/vma: fix anon_vma UAF on mremap() faulted, unfaulted merge" failed to apply to 6.18-stable tree
  2026-01-20 · <gregkh@linuxfoundation.org> · 2 Reviewed-by, 1 Acked-by
• DORMANTno replies REVIEWED: 3 (0M) FAILED: patch "[PATCH] mm/vma: enforce VMA fork limit on unfaulted,faulted mremap" failed to apply to 6.18-stable tree
  2026-01-20 · <gregkh@linuxfoundation.org> · 2 Reviewed-by, 1 Acked-by
• STALE161d REVIEWED: 3 (0M) [PATCH 6.18.y] mm/vma: fix anon_vma UAF on mremap() faulted, unfaulted merge
  2026-01-22 · Lorenzo Stoakes <hidden> · 2 Reviewed-by, 1 Acked-by
• STALE161d REVIEWED: 3 (0M) [PATCH 6.18.y 1/2] mm/vma: fix anon_vma UAF on mremap() faulted, unfaulted merge
  2026-01-22 · Lorenzo Stoakes <hidden> · 2 Reviewed-by, 1 Acked-by
• DORMANTno replies REVIEWED: 3 (0M) [PATCH 6.18.y 2/2] mm/vma: enforce VMA fork limit on unfaulted,faulted mremap merge too
  2026-01-22 · Lorenzo Stoakes <hidden> · 2 Reviewed-by, 1 Acked-by
• STALE145d REVIEWED: 20 (20M) FAILED: patch "[PATCH] procfs: avoid fetching build ID while holding VMA lock" failed to apply to 6.12-stable tree
  2026-02-07 · <gregkh@linuxfoundation.org> · 2 Reviewed-by, 1 Tested-by
• DORMANTno replies REVIEWED: 20 (20M) [PATCH 6.12.y] procfs: avoid fetching build ID while holding VMA lock
  2026-02-07 · Sasha Levin <sashal@kernel.org> · 2 Reviewed-by, 1 Tested-by
• STALE124d REVIEWED: 24 (24M) [PATCH 6.18 707/752] procfs: fix possible double mmput() in do_procmap_query()
  2026-02-28 · Sasha Levin <sashal@kernel.org> · 1 Reviewed-by, 1 Tested-by
• DORMANTno replies REVIEWED: 24 (24M) FAILED: Patch "procfs: fix possible double mmput() in do_procmap_query()" failed to apply to 6.12-stable tree
  2026-03-01 · Sasha Levin <sashal@kernel.org> · 1 Reviewed-by, 1 Tested-by
• STALE92d REVIEWED: 5 (3M) [PATCH 6.18.y 1/2] mm: replace READ_ONCE() with standard page table accessors
  2026-04-01 · Sasha Levin <sashal@kernel.org> · 3 Reviewed-by, 1 Acked-by

Quiet for 30+ days

Patches with no review trailers and no replies. Either the author is heads-down elsewhere or these slipped through. Oldest first.

• DORMANTno replies Re: Linux 6.1.160
  2026-01-11 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies [PATCH 6.1] mm/mprotect: restore pmd stability check in change_pte_range()
  2026-01-14 · Fedor Pchelkin <hidden>
• STALE160d [PATCH 6.18 102/198] tools/testing/selftests: add forked (un)/faulted VMA merge tests
  2026-01-21 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 6.18.7
  2026-01-23 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE153d Re: Linux 6.18.8
  2026-01-30 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE146d Re: Linux 6.1.162
  2026-02-06 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE141d Re: Linux 6.12.70
  2026-02-11 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE141d Re: Linux 6.18.10
  2026-02-11 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 6.19.6
  2026-03-04 · Sasha Levin <sashal@kernel.org>
• DORMANTno replies Re: Linux 6.18.16
  2026-03-04 · Sasha Levin <sashal@kernel.org>