In the Linux kernel, the following vulnerability has been resolved: ext2: Add sanity checks for group and filesystem size Add sanity check that filesystem size does not exceed the underlying device size and that group size is big enough so that metadata can fit into it. This avoid trying to mount some crafted filesystems with extremely large group counts.
https://git.kernel.org/stable/c/d766f2d1e3e3bd44024a7f971ffcf8b8fbb7c5d2
https://git.kernel.org/stable/c/40ff52527daec00cf1530c17a95636916ddd3b38
https://git.kernel.org/stable/c/321440079763998076b75e0c802524e2218a7d97