CVE-2024-38574

CVE-2024-38574 affects the Linux kernel’s libbpf/bpf loading flow. The root cause is a NULL dereference: in bpf_object_load_prog(), obj->btf may be NULL when passed to btf_fd(), and the code path does not guard against NULL. This can cause segmentation faults (e.g., bpftool failing to load pro...

CVE-2024-38574: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: libbpf: Prevent null-pointer dereference when prog to load has no BTF In bpfobjecloadprog, there's no guarantee that obj-btf is non-NULL when passing it to btffd, and this function does not perform any check before dereferencing...