fuse: write inode in fuse_release()
A race between write(2) and close(2) allows pages to be dirtied after
fuse_flush -> write_inode_now(). If these pages are not flushed from
fuse_release(), then there might not be a writable open file later. So any
remaining dirty pages must be written back before the file is released.
This is a partial revert of the blamed commit.
Reported-by: syzbot+6e1efbd8efaaa6860e91@syzkaller.appspotmail.com
Fixes: 36ea23374d1f ("fuse: write inode in fuse_vma_close() instead of fuse_release()")
Cc: <stable@vger.kernel.org> # v5.16
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
1 file changed
