In the Linux kernel, the following vulnerability has been resolved: bpf: add missing check_func_arg_reg_off() to prevent out-of-bounds memory accesses Currently, it's possible to pass in a modified…

Summary

In the Linux kernel, the following vulnerability has been resolved: bpf: add missing check_func_arg_reg_off() to prevent out-of-bounds memory accesses Currently, it's possible to pass in a modified CONST_PTR_TO_DYNPTR to a global function as an argument. The adverse effects of this is that BPF helpers can continue to make use of this modified CONST_PTR_TO_DYNPTR from within the context of the global function, which can unintentionally result in out-of-bounds memory accesses and therefore comp…