No, that does not appear to be rolling shutter.

The most typical rolling shutter effect is a distortion of moving objects.... or distortion of stationary objects if the photographer and camera are moving, such as riding on a train.

There also can be "banding" in some light sources that flicker on and off: fluorescent, LEDs, etc.

There can be situations where exposure is uneven, as in your photo. But it usually only occurs when the lighting conditions change dramatically during the exposure. For example, somewhere I saw a shot of lightning where half the image was exposed differently than the other. I don't see opportunity for that to occur in your image. The scene appears to be evenly illuminated. That effect might occur if you were using flash that wasn't properly synced. I'm not certain, but it appears you weren't using flash for that shot (with flash the closer subject would be illuminated more strongly than the more distant background).

Rolling shutter effects occur when using an electronic shutter because the data captured on the image sensor is read row by row from the top to the bottom. The data being captured at the bottom has been captured a nanosecond later than the data at the top.

A partial solution is to make the read out faster. That can be done various ways. So called "stacked" sensors are one method.

A more complete solution would be a "global" electronic shutter where all the data is read off the image sensor at the same time. Those exist, but are complex and quite pricey, making them impractical for use in consumer cameras. Eventually the tech will become available. Just don't hold your breath waiting for it.

More info about rolling shutter: https://en.wikipedia.org/wiki/Rolling_shutter

I really don't know what happened to your image. It would be very helpful if you would upload a larger version of the image and keep the EXIF data intact so we could look through it for clues.

No, that's not rolling shutter. Rolling shutter is a tendency of upright objects to lean, or tires to appear oval, when the camera moves relative to the subject during an exposure.

It happens because most sensors scan from top of frame to bottom, and it takes time to do that. The subject or camera moving during an exposure causes each "scan line" to be offset a bit from the last.

Sony is making some sensors that read out the whole image at once... So no (significant) rolling shutter effect.

The intro to the British detective series, *Scott and Bailey*, has a lot of really horrid examples of rolling shutter effect in the intro sequence. (Other than that, it's a good series, if you understand the thick Manchester accents or turn on subtitles!)