The patch titled
Subject: mm-page_table_check-fix-accessing-unmapped-ptep-fix
has been added to the -mm mm-hotfixes-unstable branch. Its filename is
mm-page_table_check-fix-accessing-unmapped-ptep-fix.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-page_table_check-fix-accessing-unmapped-ptep-fix.patch
This patch will later appear in the mm-hotfixes-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: mm-page_table_check-fix-accessing-unmapped-ptep-fix
Date: Thu May 26 11:12:12 AM PDT 2022
account for ptep alteration, per Matthew
Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Cc: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Cc: Pasha Tatashin <pasha.tatashin@xxxxxxxxxx>
Cc: Qi Zheng <zhengqi.arch@xxxxxxxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page_table_check.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/page_table_check.c~mm-page_table_check-fix-accessing-unmapped-ptep-fix
+++ a/mm/page_table_check.c
@@ -256,6 +256,6 @@ void __page_table_check_pte_clear_range(
addr += PAGE_SIZE;
ptep++;
}
- pte_unmap(ptep);
+ pte_unmap(ptep - PTRS_PER_PTE);
}
}
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
kexec_file-drop-weak-attribute-from-arch_kexec_apply_relocations-fix.patch
mm-page_table_check-fix-accessing-unmapped-ptep-fix.patch
mm-page_alloc-remotely-drain-per-cpu-lists-checkpatch-fixes.patch
mm-shmemc-suppress-shift-warning.patch
linux-next-rejects.patch
linux-next-git-rejects.patch
mm-oom_killc-fix-vm_oom_kill_table-ifdeffery.patch
