On Tue, Sep 01, 2020 at 02:53:09PM +0800, Huang Pei wrote:
> In cc97ab235f ("MIPS: Simplify FP context initialization), init_fp_ctx
> just initialize the fp/msa context, and own_fp_inatomic just restore
> FCSR and 64bit FP regs from it, but miss MSACSR and upper MSA regs for
> MSA, so MSACSR and MSA upper regs's value from previous task on current
> cpu can leak into current task and cause unpredictable behavior when MSA
> context not initialized.
>
> Fixes: cc97ab235f ("MIPS: Simplify FP context initialization")
> Signed-off-by: Huang Pei <huangpei@xxxxxxxxxxx>
> ---
> arch/mips/kernel/traps.c | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
applied to mips-fixes.
Thomas.
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