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From: Marat Khalili <marat.khalili@huawei.com>
To: Stephen Hemminger <stephen@networkplumber.org>
CC: Konstantin Ananyev <konstantin.ananyev@huawei.com>, "dev@dpdk.org"
 <dev@dpdk.org>
Subject: RE: [PATCH v4 3/5] bpf: add a test for BPF ELF load
Thread-Topic: [PATCH v4 3/5] bpf: add a test for BPF ELF load
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Date: Fri, 7 Nov 2025 17:45:51 +0000
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P.S. When running with UB sanitizer:

RTE>>bpf_elf_load_autotest
BPF: resolve_xsym(40): EBPF_PSEUDO_CALL to external function: dummy_func1
../../src/lib/bpf/bpf_validate.c:247:24: runtime error: signed integer over=
flow: 9223372036854775807 + 2147483647 cannot be represented in type 'long =
int'
    #0 0x2b1fdca in eval_add ../../src/lib/bpf/bpf_validate.c:247
    #1 0x2b2b9dc in eval_alu ../../src/lib/bpf/bpf_validate.c:691
    #2 0x2b3b187 in evaluate ../../src/lib/bpf/bpf_validate.c:2446
    #3 0x2b3bf0f in __rte_bpf_validate ../../src/lib/bpf/bpf_validate.c:253=
7
    #4 0x2b19b33 in rte_bpf_load ../../src/lib/bpf/bpf_load.c:113
    #5 0x2b47d6d in bpf_load_elf ../../src/lib/bpf/bpf_load_elf.c:288
    #6 0x2b47fe8 in rte_bpf_elf_load ../../src/lib/bpf/bpf_load_elf.c:320
    #7 0x66b4b8 in test_bpf_elf_load ../../src/app/test/test_bpf.c:3382