From: Kees Cook <keescook@chromium.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org, Kees Cook <keescook@chromium.org>,
Matthew Wilcox <willy@infradead.org>,
Randy Dunlap <rdunlap@infradead.org>
Subject: [GIT PULL] usercopy fix for v5.4-rc1
Date: Thu, 26 Sep 2019 11:35:41 -0700 [thread overview]
Message-ID: <201909261131.65DA27B@keescook> (raw)
Hi Linus,
Please pull this usercopy fix for v5.4-rc1. Randy found a corner case
(HIGHMEM, DEBUG_VIRTUAL, >512MB RAM) with hardened usercopy that went
unnoticed since v4.8. This adds HIGHMEM awareness to hardened usercopy,
and has been living in -next for a bit more than a week now.
Thanks!
-Kees
The following changes since commit 4d856f72c10ecb060868ed10ff1b1453943fc6c8:
Linux 5.3 (2019-09-15 14:19:32 -0700)
are available in the Git repository at:
https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git tags/usercopy-v5.4-rc1
for you to fetch changes up to 314eed30ede02fa925990f535652254b5bad6b65:
usercopy: Avoid HIGHMEM pfn warning (2019-09-17 15:20:17 -0700)
----------------------------------------------------------------
Fix hardened usercopy under CONFIG_DEBUG_VIRTUAL
----------------------------------------------------------------
Kees Cook (1):
usercopy: Avoid HIGHMEM pfn warning
mm/usercopy.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
--
Kees Cook
next reply other threads:[~2019-09-26 18:35 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-26 18:35 Kees Cook [this message]
2019-09-26 20:10 ` [GIT PULL] usercopy fix for v5.4-rc1 pr-tracker-bot
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