The patch titled Subject: mm/sparse: more checks on mem_section number has been added to the -mm tree. Its filename is mm-sparse-more-check-on-mem_section-number.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Gavin Shan <shangw@xxxxxxxxxxxxxxxxxx> Subject: mm/sparse: more checks on mem_section number __section_nr() was implemented to retrieve the corresponding memory section number according to its descriptor. It's possible that the specified memory section descriptor doesn't exist in the global array. So add more checking on that and report an error for a wrong case. Signed-off-by: Gavin Shan <shangw@xxxxxxxxxxxxxxxxxx> Acked-by: David Rientjes <rientjes@xxxxxxxxxx> Cc: Michal Hocko <mhocko@xxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/sparse.c | 2 ++ 1 file changed, 2 insertions(+) diff -puN mm/sparse.c~mm-sparse-more-check-on-mem_section-number mm/sparse.c --- a/mm/sparse.c~mm-sparse-more-check-on-mem_section-number +++ a/mm/sparse.c @@ -130,6 +130,8 @@ int __section_nr(struct mem_section* ms) break; } + VM_BUG_ON(root_nr == NR_SECTION_ROOTS); + return (root_nr * SECTIONS_PER_ROOT) + (ms - root); } _ Subject: Subject: mm/sparse: more checks on mem_section number Patches currently in -mm which might be from shangw@xxxxxxxxxxxxxxxxxx are linux-next.patch mm-slab-remove-duplicate-check.patch mm-buddy-cleanup-on-should_fail_alloc_page.patch mm-compaction-cleanup-on-compaction_deferred.patch memcg-add-mem_cgroup_from_css-helper.patch memcg-add-mem_cgroup_from_css-helper-fix.patch memcg-add-mem_cgroup_from_css-helper-fix-2.patch mm-sparse-optimize-sparse_index_alloc.patch mm-sparse-more-check-on-mem_section-number.patch mm-sparse-remove-index_init_lock.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html