[PATCH openEuler-1.0-LTS 0/2] ovl: check access to copy_file_range source with src mounter creds

Export rw_verify_area and check access to copy_file_range source with src mounter creds. Patch 1 export rw_verify_area for verification. Patch 2 check access to copy_file_range source with src mounter creds Ran Hongyun (2): fs: export rw_verify_area() ovl: check access to copy_file_range source with src mounter creds fs/internal.h | 4 ---- fs/overlayfs/file.c | 17 +++++++++++++++++ fs/read_write.c | 1 + include/linux/fs.h | 1 + 4 files changed, 19 insertions(+), 4 deletions(-) -- 2.52.0