x86/fpu: Fail ptrace() requests that try to set invalid MXCSR values

Browse source

There is no benefit from accepting and silently changing an invalid MXCSR
value supplied via ptrace().  Instead, return -EINVAL on invalid input.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20210623121452.613614842@linutronix.de

...

This commit is contained in:

Andy Lutomirski 2021-06-23 14:01:40 +02:00 • committed by Borislav Petkov

parent 6164331d15

commit 145e9e0d8c

1 changed files with 3 additions and 2 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

5

arch/x86/kernel/fpu/regset.c

View file