Is there an existing issue for this?
- I have searched the existing issues
Current behaviour
Undefined-shift
Expected behaviour
no Undefined-shift
Steps to reproduce
- Compile fuzz targets with
./configure CC=clang CXX=clang++ --enable-fuzz --with-sanitizers=fuzzer,undefined - Create crash input:
echo 'Av////////////8gICD///8gIP8g/yAg/yA=' | base64 --decode > /tmp/crash.bin - Run Fuzz target:
FUZZ=minisketch ./src/test/fuzz/fuzz /tmp/crash.bin
Relevant log output
# FUZZ=minisketch ./src/test/fuzz/fuzz /tmp/crash.bin
INFO: Running with entropic power schedule (0xFF, 100).
INFO: Seed: 1866818617
INFO: Loaded 1 modules (424177 inline 8-bit counters): 424177 [0x55d4679ea4d0, 0x55d467a51dc1),
INFO: Loaded 1 PC tables (424177 PCs): 424177 [0x55d467a51dc8,0x55d4680cacd8),
./src/test/fuzz/fuzz: Running 1 inputs 1 time(s) each.
Running: /tmp/crash.bin
minisketch/src/fields/../int_utils.h:179:69: runtime error: shift exponent 32 is too large for 32-bit type 'unsigned int'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior minisketch/src/fields/../int_utils.h:179:69 in
minisketch/src/fields/../int_utils.h:180:74: runtime error: shift exponent 32 is too large for 32-bit type 'unsigned int'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior minisketch/src/fields/../int_utils.h:180:74 in
Executed /tmp/crash.bin in 1 ms
***
*** NOTE: fuzzing was not performed, you have only
*** executed the target code on a fixed set of inputs.
***
How did you obtain Bitcoin Core
Compiled from source
What version of Bitcoin Core are you using?
master
Operating system and version
Linux
Machine specifications
No response
