Messages in this thread | | | Date | Wed, 3 Jun 2020 23:34:52 +0200 | From | Borislav Petkov <> | Subject | [GIT PULL] core/core updates for v5.8 |
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Hi Linus,
please pull the set disabling automatic READ_IMPLIES_EXEC on x86-64 and arm64.
Thx.
--- The following changes since commit ae83d0b416db002fe95601e7f97f64b59514d936:
Linux 5.7-rc2 (2020-04-19 14:35:30 -0700)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git tags/core_core_updates_for_5.8
for you to fetch changes up to 6e0d6ac5f3d9d90271899f6d340872360fe1caee:
arm64/elf: Disable automatic READ_IMPLIES_EXEC for 64-bit address spaces (2020-04-20 19:44:27 +0200)
---------------------------------------------------------------- Split the old READ_IMPLIES_EXEC workaround from executable PT_GNU_STACK now that toolchains long support PT_GNU_STACK marking and there's no need anymore to force modern programs into having all its user mappings executable instead of only the stack and the PROT_EXEC ones. Disable that automatic READ_IMPLIES_EXEC forcing on x86-64 and arm64. Add tables documenting how READ_IMPLIES_EXEC is handled on x86-64, arm and arm64. By Kees Cook.
---------------------------------------------------------------- Kees Cook (6): x86/elf: Add table to document READ_IMPLIES_EXEC x86/elf: Split READ_IMPLIES_EXEC from executable PT_GNU_STACK x86/elf: Disable automatic READ_IMPLIES_EXEC on 64-bit arm32/64/elf: Add tables to document READ_IMPLIES_EXEC arm32/64/elf: Split READ_IMPLIES_EXEC from executable PT_GNU_STACK arm64/elf: Disable automatic READ_IMPLIES_EXEC for 64-bit address spaces
arch/arm/kernel/elf.c | 27 +++++++++++++++++++++++---- arch/arm64/include/asm/elf.h | 23 ++++++++++++++++++++++- arch/x86/include/asm/elf.h | 22 +++++++++++++++++++++- fs/compat_binfmt_elf.c | 5 +++++ 4 files changed, 71 insertions(+), 6 deletions(-)
-- Regards/Gruss, Boris.
SUSE Software Solutions Germany GmbH, GF: Felix Imendörffer, HRB 36809, AG Nürnberg
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