CVE-2025-38163: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on sbi-totalvalidblockcount syzbot reported a f2fs bug as below: ------------ cut here ------------ kernel BUG at fs/f2fs/f2fs.h:2521! RIP: 0010:decvalidblockcount+0x3b2/0x3c0 fs/f2fs/f2fs.h:2521 Call...