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Subject[GIT PULL] x86/urgent for 6.1-rc6
Hi Linus,

please pull two urgent x86 fixes for 6.1.



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:// 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

- 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(-)


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