CVE-2024-43840

In the Linux kernel, the following vulnerability has been resolved: bpf, arm64: Fix trampoline for BPFTRAMPFCALLORIG When BPFTRAMPFCALLORIG is set, the trampoline calls bpftrampenter and bpftrampexit functions, passing them the struct bpftrampimage im pointer as an argument in R0. The trampoline...

CVE-2024-43840

CVE-2024-43840 – Linux kernel (arm64, BPF trampoline) : The trampoline code for BPF_TRAMP_F_CALL_ORIG incorrectly used emit_addr_mov_i64(), assuming the bpf_tramp_image address resides in vmalloc() space with 48-bit handling. If the address exceeds 48 bits (e.g., kzalloc’d bpf_tramp_image), the t...