CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's handling of BPF (Berkeley Packet Filter) memory allocations, specifically allowing access to memory beyond the allocated object bounds when using certain BTF (BPF Type Format) accesses. This could potentially lead to memory corruption or unauthorized access to sensitive data. Organizations using affected versions of the Linux kernel, particularly those leveraging BPF for networking or security functions, should prioritize addressing this issue to mitigate risks associated with memory safety.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: bpf: Reject MEM_ALLOC BTF accesses past object bounds BTF struct walks relax the struct-size check for accesses through a trailing flexible array. That is valid for ordinary BTF type walking, but PTR_TO_BTF_ID | MEM_ALLOC values point to objects allocated with the static BTF type size. When walking a MEM_ALLOC object, reject the access before applying the flexible-array relaxation if the access range extends past the struct size. Apply the same policy to struct ID matching so kfunc and kptr type checks do not walk past the allocated object bounds either.