Frantisek Sumsal
a19b6bd554
As it might hide a possible allocation error since it uses
the returns_nonnull attribute:
AddressSanitizer:DEADLYSIGNAL
=================================================================
==8==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000004 (pc 0x7f317897db8d bp 0x7ffd436fe9a0 sp 0x7ffd436fe970 T0)
==8==The signal is caused by a WRITE memory access.
==8==Hint: address points to the zero page.
SCARINESS: 10 (null-deref)
#0 0x7f317897db8d in source_new /work/build/../../src/systemd/src/libsystemd/sd-event/sd-event.c:1214:18
#1 0x7f317897e68c in sd_event_add_time /work/build/../../src/systemd/src/libsystemd/sd-event/sd-event.c:1417:13
#2 0x7f317897a0f6 in event_reset_time /work/build/../../src/systemd/src/libsystemd/sd-event/event-util.c:68:21
#3 0x4e2c8e in client_initialize_time_events /work/build/../../src/systemd/src/libsystemd-network/sd-dhcp-client.c:1366:13
#4 0x4eb0fd in client_initialize_events /work/build/../../src/systemd/src/libsystemd-network/sd-dhcp-client.c:1380:9
#5 0x4eb0fd in client_start_delayed /work/build/../../src/systemd/src/libsystemd-network/sd-dhcp-client.c:1410:16
#6 0x4e30aa in client_start /work/build/../../src/systemd/src/libsystemd-network/sd-dhcp-client.c:1415:16
#7 0x4e30aa in sd_dhcp_client_start /work/build/../../src/systemd/src/libsystemd-network/sd-dhcp-client.c:2045:13
#8 0x4e700e in LLVMFuzzerTestOneInput /work/build/../../src/systemd/src/libsystemd-network/fuzz-dhcp-client.c:73:15
#9 0x5062f8 in NaloFuzzerTestOneInput (/build/fuzz-dhcp-client+0x5062f8)
#10 0x525283 in fuzzer::Fuzzer::ExecuteCallback(unsigned char const*, unsigned long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:611:15
#11 0x524a6a in fuzzer::Fuzzer::RunOne(unsigned char const*, unsigned long, bool, fuzzer::InputInfo*, bool, bool*) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:514:3
#12 0x526139 in fuzzer::Fuzzer::MutateAndTestOne() /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:757:19
#13 0x526e05 in fuzzer::Fuzzer::Loop(std::__Fuzzer::vector<fuzzer::SizedFile, std::__Fuzzer::allocator<fuzzer::SizedFile> >&) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:895:5
#14 0x51616f in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char const*, unsigned long)) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:912:6
#15 0x516a38 in LLVMFuzzerRunDriver /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:925:10
#16 0x506555 in main (/build/fuzz-dhcp-client+0x506555)
#17 0x7f3177ce3082 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x24082) (BuildId: 1878e6b475720c7c51969e69ab2d276fae6d1dee)
#18 0x420c4d in _start (/build/fuzz-dhcp-client+0x420c4d)
Found by Nallocfuzz.
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