kernel_linux

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History

Peter Xu 12eb3c2c1a mm/swap: fix pte_same_as_swp() not removing uffd-wp bit when compare

commit 099dd6878b9b12d6bbfa6bf29ce0c8ddd38f6901 upstream.

I found it by pure code review, that pte_same_as_swp() of unuse_vma()
didn't take uffd-wp bit into account when comparing ptes.
pte_same_as_swp() returning false negative could cause failure to
swapoff swap ptes that was wr-protected by userfaultfd.

Link: https://lkml.kernel.org/r/20210603180546.9083-1-peterx@redhat.com
Fixes: f45ec5ff16a7 ("userfaultfd: wp: support swap and page migration")
Signed-off-by: Peter Xu <peterx@redhat.com>
Acked-by: Hugh Dickins <hughd@google.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: <stable@vger.kernel.org>	[5.7+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2021-06-23 14:42:53 +02:00

acpi

ACPI: scan: Use unique number for instance_no

2021-03-30 14:32:06 +02:00

asm-generic

vmlinux.lds.h: Avoid orphan section with !SMP

2021-06-16 12:01:45 +02:00

clocksource

…

crypto

crypto: poly1305 - fix poly1305_core_setkey() declaration

2021-05-14 09:50:13 +02:00