ext2: reject inodes with zero i_nlink and valid mode in ext2_iget()

...

UBUNTU-CVE-2022-50261

In the Linux kernel, the following vulnerability has been resolved: drm/sti: Fix return type of stidvo,hda,hdmiconnectormodevalid With clang's kernel control flow integrity kCFI, CONFIGCFICLANG, indirect call targets are validated against the expected function pointer prototype to make sure the...