Blame SOURCES/CVE-2023-1476.patch
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From 42a30a3ccd07e1f9853ee0cc03c314fdf3550fc1 Mon Sep 17 00:00:00 2001
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From: Joe Lawrence <joe.lawrence@redhat.com>
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Date: Fri, 17 Mar 2023 18:07:47 -0400
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Subject: [KPATCH CVE-2022-1476] kpatch fixes for CVE-2022-1476
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Kernels:
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4.18.0-425.3.1.el8
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4.18.0-425.10.1.el8_7
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4.18.0-425.13.1.el8_7
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Kpatch-MR: https://gitlab.com/redhat/prdsc/rhel/src/kpatch/rhel-8/-/merge_requests/93
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Approved-by: Yannick Cote (@ycote1)
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Changes since last build:
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arches: x86_64 ppc64le
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---------------------------
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Modifications:
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- Kpatch only
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The 8.7 kpatch fix for CVE-2022-41222 was incomplete. Adjust the PMD
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page table case as well.
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Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com>
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---
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mm/mremap.c | 6 ++----
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1 file changed, 2 insertions(+), 4 deletions(-)
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diff --git a/mm/mremap.c b/mm/mremap.c
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index d837de27011b..08d35ee99afc 100644
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--- a/mm/mremap.c
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+++ b/mm/mremap.c
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@@ -307,12 +307,10 @@ unsigned long move_page_tables(struct vm_area_struct *vma,
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*/
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bool moved;
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- if (need_rmap_locks)
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- take_rmap_locks(vma);
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+ take_rmap_locks(vma);
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moved = move_normal_pmd(vma, old_addr, new_addr,
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old_end, old_pmd, new_pmd);
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- if (need_rmap_locks)
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- drop_rmap_locks(vma);
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+ drop_rmap_locks(vma);
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if (moved)
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continue;
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#endif
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--
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2.39.2
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