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![]() For BPF_PSEUDO_FUNC instruction, verifier will refill imm with
correct addresses of bpf_calls and then run last pass of JIT.
Since the emit_imm of RV64 is variable-length, which will emit
appropriate length instructions accorroding to the imm, it may
broke ctx->offset, and lead to unpredictable problem, such as
inaccurate jump. So let's fix it with fixed-length instructions.
Fixes:
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.. | ||
bpf_jit.h | ||
bpf_jit_comp32.c | ||
bpf_jit_comp64.c | ||
bpf_jit_core.c | ||
Makefile |