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45 lines
2.6 KiB
45 lines
2.6 KiB
2 years ago
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From af471e7402a70b670cd50e45c6139a0ac50a74bd Mon Sep 17 00:00:00 2001
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From: Evgeny Vereshchagin <evvers@ya.ru>
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Date: Fri, 16 Nov 2018 09:23:53 +0100
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Subject: [PATCH] test: initialize syslog_fd in fuzz-journald-kmsg too
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This is a follow-up to 8857fb9beb9dcb that prevents the fuzzer from crashing with
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```
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==220==ERROR: AddressSanitizer: ABRT on unknown address 0x0000000000dc (pc 0x7ff4953c8428 bp 0x7ffcf66ec290 sp 0x7ffcf66ec128 T0)
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SCARINESS: 10 (signal)
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#0 0x7ff4953c8427 in gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x35427)
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#1 0x7ff4953ca029 in abort (/lib/x86_64-linux-gnu/libc.so.6+0x37029)
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#2 0x7ff49666503a in log_assert_failed_realm /work/build/../../src/systemd/src/basic/log.c:805:9
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#3 0x7ff496614ecf in safe_close /work/build/../../src/systemd/src/basic/fd-util.c:66:17
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#4 0x548806 in server_done /work/build/../../src/systemd/src/journal/journald-server.c:2064:9
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#5 0x5349fa in LLVMFuzzerTestOneInput /work/build/../../src/systemd/src/fuzz/fuzz-journald-kmsg.c:26:9
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#6 0x592755 in fuzzer::Fuzzer::ExecuteCallback(unsigned char const*, unsigned long) /src/libfuzzer/FuzzerLoop.cpp:571:15
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#7 0x590627 in fuzzer::Fuzzer::RunOne(unsigned char const*, unsigned long, bool, fuzzer::InputInfo*, bool*) /src/libfuzzer/FuzzerLoop.cpp:480:3
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#8 0x594432 in fuzzer::Fuzzer::MutateAndTestOne() /src/libfuzzer/FuzzerLoop.cpp:708:19
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#9 0x5973c6 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:839:5
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#10 0x574541 in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char const*, unsigned long)) /src/libfuzzer/FuzzerDriver.cpp:764:6
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#11 0x5675fc in main /src/libfuzzer/FuzzerMain.cpp:20:10
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#12 0x7ff4953b382f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2082f)
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#13 0x420f58 in _start (/out/fuzz-journald-kmsg+0x420f58)
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```
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(cherry picked from commit cc55ac0171a2493768c021faa356513642797e7f)
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Resolves: #1764560
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---
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src/fuzz/fuzz-journald-kmsg.c | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/src/fuzz/fuzz-journald-kmsg.c b/src/fuzz/fuzz-journald-kmsg.c
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index 5d99d244b5..e2611c6d45 100644
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--- a/src/fuzz/fuzz-journald-kmsg.c
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+++ b/src/fuzz/fuzz-journald-kmsg.c
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@@ -11,6 +11,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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return 0;
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s = (Server) {
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+ .syslog_fd = -1,
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.native_fd = -1,
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.stdout_fd = -1,
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.dev_kmsg_fd = -1,
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