In the Linux kernel, the following vulnerability has been resolved: f2fs: fix null reference error when checking end of zone This patch fixes a potentially null pointer being accessed by is_end_zone_blkaddr() that checks the last block of a zone when f2fs is mounted as a single device.
https://git.kernel.org/stable/c/c82bc1ab2a8a5e73d9728e80c4c2ed87e8921a38
https://git.kernel.org/stable/c/b98777309756ebe15cc9ad4e8ab64bbfaf878a3f
https://git.kernel.org/stable/c/381cbe85592c78fbaeb3e770e3e9f3bfa3e67efb