Messages in this thread | | | Date | Thu, 26 Sep 2019 11:35:41 -0700 | From | Kees Cook <> | Subject | [GIT PULL] usercopy fix for v5.4-rc1 |
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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
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