On 1/10/25 09:46, Xin Li (Intel) wrote: ...> Fix the bug through resynchronizing the FRED RSP0 MSR with its > per-CPU cache in cpu_init_fred_exceptions(). > > Fixes: fe85ee391966 ("x86/entry: Set FRED RSP0 on return to userspace instead of context switch") > Signed-off-by: Xin Li (Intel) <xin@xxxxxxxxx> > Cc: stable@xxxxxxxxxxxxxxx Thanks for the update: Acked-by: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx> I'll probably do a wee bit of testing today and apply to the urgent pile early next week.