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(parent: 0aef499) | patch
mm/usercopy: Detect large folio overruns
authorMatthew Wilcox (Oracle) <willy@infradead.org>
Mon, 10 Jan 2022 23:15:29 +0000 (23:15 +0000)
committerKees Cook <keescook@chromium.org>
Wed, 13 Apr 2022 19:15:51 +0000 (12:15 -0700)
commitab502103ae3ce4c0fc393e598455efede3e523c9
tree76cc3109c004c93473f70759b100ac083ff03649tree | snapshot
parent0aef499f3172a60222ae7460d61b364c134d6e1acommit | diff
mm/usercopy: Detect large folio overruns

Move the compound page overrun detection out of
CONFIG_HARDENED_USERCOPY_PAGESPAN and convert it to use folios so it's
enabled for more people.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Kees Cook <keescook@chromium.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20220110231530.665970-4-willy@infradead.org
mm/usercopy.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git