From: Ilya Leoshkevich <[email protected]> Currently it's possible to execute pages that do not have PAGE_EXEC if there is an existing translation block. Fix by invalidating TBs that touch the affected pages.
Signed-off-by: Ilya Leoshkevich <[email protected]> Message-Id: <[email protected]> Signed-off-by: Richard Henderson <[email protected]> --- linux-user/mmap.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/linux-user/mmap.c b/linux-user/mmap.c index 048c4135af..6a828e8418 100644 --- a/linux-user/mmap.c +++ b/linux-user/mmap.c @@ -177,9 +177,11 @@ int target_mprotect(abi_ulong start, abi_ulong len, int target_prot) goto error; } } + page_set_flags(start, start + len, page_flags); - mmap_unlock(); - return 0; + tb_invalidate_phys_range(start, start + len); + ret = 0; + error: mmap_unlock(); return ret; -- 2.34.1
