tests: add a reproducer for the heap-buffer-overflow fixed in cb1bdeaf56852275e6b

==14==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x6020001c761a at pc 0x000000540abc bp 0x7ffd0caf2c50 sp 0x7ffd0caf2c48
READ of size 2 at 0x6020001c761a thread T0
    #0 0x540abb in client_parse_message /work/build/../../src/systemd/src/libsystemd-network/sd-dhcp6-client.c:849:73
    #1 0x53f3bc in client_receive_advertise /work/build/../../src/systemd/src/libsystemd-network/sd-dhcp6-client.c:1083:13
    #2 0x53d57f in client_receive_message /work/build/../../src/systemd/src/libsystemd-network/sd-dhcp6-client.c:1182:21
    #3 0x7f71d8c3eeee in source_dispatch /work/build/../../src/systemd/src/libsystemd/sd-event/sd-event.c:3042:21
    #4 0x7f71d8c3e431 in sd_event_dispatch /work/build/../../src/systemd/src/libsystemd/sd-event/sd-event.c:3455:21
    #5 0x7f71d8c3fa8d in sd_event_run /work/build/../../src/systemd/src/libsystemd/sd-event/sd-event.c:3512:21
    #6 0x531f2b in fuzz_client /work/build/../../src/systemd/src/fuzz/fuzz-dhcp6-client.c:44:9
    #7 0x531bc1 in LLVMFuzzerTestOneInput /work/build/../../src/systemd/src/fuzz/fuzz-dhcp6-client.c:53:9
    #8 0x57bef8 in fuzzer::Fuzzer::ExecuteCallback(unsigned char const*, unsigned long) /src/libfuzzer/FuzzerLoop.cpp:570:15
    #9 0x579d97 in fuzzer::Fuzzer::RunOne(unsigned char const*, unsigned long, bool, fuzzer::InputInfo*, bool*) /src/libfuzzer/FuzzerLoop.cpp:479:3
    #10 0x57dcc2 in fuzzer::Fuzzer::MutateAndTestOne() /src/libfuzzer/FuzzerLoop.cpp:707:19
    #11 0x580cd6 in fuzzer::Fuzzer::Loop(std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, fuzzer::fuzzer_allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > > const&) /src/libfuzzer/FuzzerLoop.cpp:838:5
    #12 0x55e998 in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char const*, unsigned long)) /src/libfuzzer/FuzzerDriver.cpp:764:6
    #13 0x551a4c in main /src/libfuzzer/FuzzerMain.cpp:20:10
    #14 0x7f71d784182f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2082f)
    #15 0x41e928 in _start (/out/fuzz-dhcp6-client+0x41e928)

diff --git a/test/fuzz-regressions/fuzz-dhcp6-client/crash-6e88fcb6b85c9436bcbe05219aa8e550194645ef b/test/fuzz-regressions/fuzz-dhcp6-client/crash-6e88fcb6b85c9436bcbe05219aa8e550194645ef
new file mode 100644 (file)
index 0000000..44883be
Binary files /dev/null and b/test/fuzz-regressions/fuzz-dhcp6-client/crash-6e88fcb6b85c9436bcbe05219aa8e550194645ef differ

diff --git a/test/fuzz-regressions/meson.build b/test/fuzz-regressions/meson.build
index a4602b4c8f94b2505a873407693c06ccde3239bd..043d3f31543e1318081522a26517957821706048 100644 (file)
--- a/test/fuzz-regressions/meson.build
+++ b/test/fuzz-regressions/meson.build
@@ -13,6 +13,7 @@ sanitizers = [['address', sanitize_address]]
 
 fuzz_regression_tests = '''
         fuzz-dhcp6-client/crash-4003c06fce43a11fbd22f02584df2807ac333eae
+        fuzz-dhcp6-client/crash-6e88fcb6b85c9436bcbe05219aa8e550194645ef
         fuzz-dns-packet/issue-7888
         fuzz-dns-packet/oss-fuzz-5465
         fuzz-journal-remote/crash-5a8f03d4c3a46fcded39527084f437e8e4b54b76