CVE-2026-68285

In the Linux kernel, the following vulnerability has been resolved:

LoongArch: BPF: Fix memory leak in bpfjitfree()

When bpfintjitcompile() is called for subprograms, it returns early during the first pass (!prog->isfunc || extra_pass is false), keeping ctx->offset alive for the subsequent extra pass.

If JIT compilation fails for a later subprogram, the BPF core aborts and calls bpfjitfree() to clean up the first subprogram. However, bpfjitfree() fails to free jit_data->ctx.offset, which causes a memory leak of the JIT context offsets array.

So fix this by adding the missing kvfree(jitdata->ctx.offset) in bpfjit_free().