[gnutls-devel] GnuTLS | Timeout in gnutls_pkcs12_verify_mac (#1329)

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tongxiaoge1001 created an issue: https://gitlab.com/gnutls/gnutls/-/issues/1329



## Description of problem:
`
==3981550== ERROR: libFuzzer: timeout after 121 seconds

    #0 0x52b281 in __sanitizer_print_stack_trace /src/llvm-project/compiler-rt/lib/asan/asan_stack.cpp:86:3
    #1 0x475ca8 in fuzzer::PrintStackTrace() /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerUtil.cpp:210:5
    #2 0x45a2f9 in fuzzer::Fuzzer::AlarmCallback() /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:301:5
    #3 0x7f608ab804bf  (/lib64/libpthread.so.0+0x134bf)
    #4 0x521ab1 in __asan_memcpy /src/llvm-project/compiler-rt/lib/asan/asan_interceptors_memintrinsics.cpp:22:3
    #5 0x830d00 in nettle_sha1_init /src/nettle/sha1.c:64:3
    #6 0x716961 in _ctx_init /src/gnutls/lib/accelerated/x86/sha-x86-ssse3.c:237:3
    #7 0x7165ee in wrap_x86_hash_fast /src/gnutls/lib/accelerated/x86/sha-x86-ssse3.c:348:8
    #8 0x620063 in _gnutls_hash_fast /src/gnutls/lib/hash_int.c:133:7
    #9 0x57c755 in _gnutls_pkcs12_string_to_key /src/gnutls/lib/x509/pkcs12_encr.c:163:9
    #10 0x57211f in gnutls_pkcs12_verify_mac /src/gnutls/lib/x509/pkcs12.c:1127:11
    #11 0x555bc7 in LLVMFuzzerTestOneInput /src/gnutls/fuzz/gnutls_pkcs12_key_parser_fuzzer.c:50:2
    #12 0x45bb23 in fuzzer::Fuzzer::ExecuteCallback(unsigned char const*, unsigned long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:599:15
    #13 0x447292 in fuzzer::RunOneTest(fuzzer::Fuzzer*, char const*, unsigned long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:323:6
    #14 0x44cf36 in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char const*, unsigned long)) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:856:9
    #15 0x476442 in main /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerMain.cpp:20:10
    #16 0x7f608a9b1b26 in __libc_start_main (/lib64/libc.so.6+0x25b26)
    #17 0x423149 in _start (/root/oss-fuzz/build/out/gnutls/gnutls_pkcs12_key_parser_fuzzer+0x423149)
`

## Version of gnutls used:
3.6.14

## Distributor of gnutls (e.g., Ubuntu, Fedora, RHEL)

openEuler

## Actual results:
Error occurred

## Expected results:
No Error[fusiontest-testcase-gnutls_pkcs12_key_parser_fuzzer-202111260001](/uploads/d9002552f9768ec2f20315369f79aab3/fusiontest-testcase-gnutls_pkcs12_key_parser_fuzzer-202111260001)

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