5 Dec
2023
5 Dec
'23
6:51 p.m.
On Thu, Nov 30, 2023 at 05:36:01PM +0100, Thomas Bogendoerfer wrote:
io_uring sets up the io worker kernel thread via a syscall out of an user space prrocess. This process might have used FPU and since copy_thread() didn't clear FPU states for kernel threads a BUG() is triggered for using FPU inside kernel. Move code around to always clear FPU state for user and kernel threads.
Cc: stable@vger.kernel.org Reported-by: Aurelien Jarno aurel32@debian.org Closes: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1055021 Signed-off-by: Thomas Bogendoerfer tsbogend@alpha.franken.de
arch/mips/kernel/process.c | 25 +++++++++++++------------ 1 file changed, 13 insertions(+), 12 deletions(-)
applied to mips-fixes.
Thomas.
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