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-rw-r--r--fs/fuse/file.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 143c54f93f2d..c1064866c402 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1377,10 +1377,17 @@ ssize_t fuse_direct_io(struct fuse_io_priv *io, struct iov_iter *iter,
if (err && !nbytes)
break;
- if (write)
+ if (write) {
+ if (!capable(CAP_FSETID)) {
+ struct fuse_write_in *inarg;
+
+ inarg = &req->misc.write.in;
+ inarg->write_flags |= FUSE_WRITE_KILL_PRIV;
+ }
nres = fuse_send_write(req, io, pos, nbytes, owner);
- else
+ } else {
nres = fuse_send_read(req, io, pos, nbytes, owner);
+ }
if (!io->async)
fuse_release_user_pages(req, io->should_dirty);