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Date: Sun, 20 Nov 2022 13:16:35 +0100
From: Borislav Petkov <bp@suse.de>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: x86-ml <x86@kernel.org>, lkml <linux-kernel@vger.kernel.org>
Subject: [GIT PULL] x86/urgent for 6.1-rc6
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[GIT,PULL] x86/urgent for 6.1-rc6
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Pull-request
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git tags/x86_urgent_for_v6.1_rc6Message
Borislav Petkov
Nov. 20, 2022, 12:16 p.m. UTC
Hi Linus,
please pull two urgent x86 fixes for 6.1.
Thx.
---
The following changes since commit f0c4d9fc9cc9462659728d168387191387e903cc:
Linux 6.1-rc4 (2022-11-06 15:07:11 -0800)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git tags/x86_urgent_for_v6.1_rc6
for you to fetch changes up to 36b038791e1e2baea892e9276588815fd14894b4:
x86/fpu: Drop fpregs lock before inheriting FPU permissions (2022-11-10 16:57:38 +0100)
----------------------------------------------------------------
- Do not hold fpregs lock when inheriting FPU permissions because the
fpregs lock disables preemption on RT but fpu_inherit_perms() does
spin_lock_irq(), which, on RT, uses rtmutexes and they need to be
preemptible.
- Check the page offset and the length of the data supplied by userspace
for overflow when specifying a set of pages to add to an SGX enclave
----------------------------------------------------------------
Borys Popławski (1):
x86/sgx: Add overflow check in sgx_validate_offset_length()
Mel Gorman (1):
x86/fpu: Drop fpregs lock before inheriting FPU permissions
arch/x86/kernel/cpu/sgx/ioctl.c | 3 +++
arch/x86/kernel/fpu/core.c | 2 +-
2 files changed, 4 insertions(+), 1 deletion(-)
Comments
The pull request you sent on Sun, 20 Nov 2022 13:16:35 +0100:
> git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git tags/x86_urgent_for_v6.1_rc6
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/894909f95aa1473f49f767dcd5750ba152b85e13
Thank you!