kernel: bpf: Reject variable offset alu on PTR_TO_FLOW_KEYS

A vulnerability has been identified in the Linux kernel's Berkeley Packet Filter BPF subsystem. The flaw resides within the handling of PTRTOFLOWKEYS pointer to flow keys in the checkflowkeysaccess function. Specifically, while fixed offsets are validated for PTRTOFLOWKEYS, the system currently...

PT-2024-2005

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The issue is related to the Linux kernel's bpf Berkeley Packet Filter functionality, specifically with the check flow keys access function. This function only uses fixed offset for...