On 8/31/22 00:17, Ilya Leoshkevich wrote:
page_set_flags(start, start + len, page_flags);
+ tb_invalidate_phys_range(start, start + len);
+
+ CPU_FOREACH(cpu) {
+ cpu_tb_jmp_cache_clear(cpu);
+ }
+
mmap_unlock();
return 0;
error:
I think adding
On Tue, 2022-08-23 at 15:05 -0700, Richard Henderson wrote:
> From: Ilya Leoshkevich
>
> Currently it's possible to execute pages that do not have PAGE_EXEC
> if there is an existing translation block. Fix by clearing
> tb_jmp_cache
> and invalidating TBs, which forces recheck of permission
From: Ilya Leoshkevich
Currently it's possible to execute pages that do not have PAGE_EXEC
if there is an existing translation block. Fix by clearing tb_jmp_cache
and invalidating TBs, which forces recheck of permission bits.
Signed-off-by: Ilya Leoshkevich
Message-Id:
