Test MSSQL with Appveyor #2
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rouault
reviewed
Feb 11, 2020
mapmssql2008.c
Outdated
| int t; | ||
| char *loc; | ||
| int match = -1; | ||
| size_t match = -1; |
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that one is problematic. size_t is a unsigned type. Setting a negative value to it will cause it to be interpreted as std::numeric_limits<size_t>::max() + 1 + value.
geographika
pushed a commit
that referenced
this pull request
Oct 5, 2022
Found locally with ossfuzz
```
Direct leak of 1304 byte(s) in 1 object(s) allocated from:
#0 0x54de9e in __interceptor_calloc /src/llvm-project/compiler-rt/lib/asan/asan_malloc_linux.cpp:77:3
#1 0x5c6ce8 in msGrowClassStyles /src/MapServer/mapfile.c:3020:48
#2 0x5c8513 in loadClass /src/MapServer/mapfile.c:3262:12
MapServer#3 0x5d0f1e in loadLayer /src/MapServer/mapfile.c:3968:12
MapServer#4 0x5ec0a0 in loadMapInternal /src/MapServer/mapfile.c:6053:12
MapServer#5 0x5ef850 in msLoadMap /src/MapServer/mapfile.c:6333:6
MapServer#6 0x58b1df in LLVMFuzzerTestOneInput /src/MapServer/build/../fuzzers/mapfuzzer.c:50:13
MapServer#7 0x45cb33 in fuzzer::Fuzzer::ExecuteCallback(unsigned char const*, unsigned long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:611:15
MapServer#8 0x45c31a 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
MapServer#9 0x45d9e9 in fuzzer::Fuzzer::MutateAndTestOne() /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:757:19
MapServer#10 0x45e6b5 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
MapServer#11 0x44da1f in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char const*, unsigned long)) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:912:6
MapServer#12 0x477072 in main /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerMain.cpp:20:10
MapServer#13 0x7f8124cb8082 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x24082) (BuildId: 1878e6b475720c7c51969e69ab2d276fae6d1dee)
```
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