Cirrus CI showed the error below when checking PR #22541
The PR does not change netaddress.cpp.
The link to the CI result is https://cirrus-ci.com/task/5715337967566848 .
netaddress.cpp:1190:18: runtime error: implicit conversion from type 'int' of value -1 (32-bit, signed) to type 'uint8_t' (aka 'unsigned char') changed the value to 255 (8-bit, unsigned)
[#0](/bitcoin-bitcoin/0/) 0x55d468c93e55 (/tmp/cirrus-ci-build/ci/scratch/build/bitcoin-x86_64-pc-linux-gnu/src/test/fuzz/fuzz+0x3caae55)
[#1](/bitcoin-bitcoin/1/) 0x55d467ccdf56 (/tmp/cirrus-ci-build/ci/scratch/build/bitcoin-x86_64-pc-linux-gnu/src/test/fuzz/fuzz+0x2ce4f56)
[#2](/bitcoin-bitcoin/2/) 0x55d467ccd529 (/tmp/cirrus-ci-build/ci/scratch/build/bitcoin-x86_64-pc-linux-gnu/src/test/fuzz/fuzz+0x2ce4529)
[#3](/bitcoin-bitcoin/3/) 0x55d467d66138 (/tmp/cirrus-ci-build/ci/scratch/build/bitcoin-x86_64-pc-linux-gnu/src/test/fuzz/fuzz+0x2d7d138)
[#4](/bitcoin-bitcoin/4/) 0x55d467d635b4 (/tmp/cirrus-ci-build/ci/scratch/build/bitcoin-x86_64-pc-linux-gnu/src/test/fuzz/fuzz+0x2d7a5b4)
[#5](/bitcoin-bitcoin/5/) 0x55d467839a7f (/tmp/cirrus-ci-build/ci/scratch/build/bitcoin-x86_64-pc-linux-gnu/src/test/fuzz/fuzz+0x2850a7f)
[#6](/bitcoin-bitcoin/6/) 0x55d46778fb77 (/tmp/cirrus-ci-build/ci/scratch/build/bitcoin-x86_64-pc-linux-gnu/src/test/fuzz/fuzz+0x27a6b77)
[#7](/bitcoin-bitcoin/7/) 0x55d4690a0067 (/tmp/cirrus-ci-build/ci/scratch/build/bitcoin-x86_64-pc-linux-gnu/src/test/fuzz/fuzz+0x40b7067)
[#8](/bitcoin-bitcoin/8/) 0x55d46909fd15 (/tmp/cirrus-ci-build/ci/scratch/build/bitcoin-x86_64-pc-linux-gnu/src/test/fuzz/fuzz+0x40b6d15)
[#9](/bitcoin-bitcoin/9/) 0x55d467695511 (/tmp/cirrus-ci-build/ci/scratch/build/bitcoin-x86_64-pc-linux-gnu/src/test/fuzz/fuzz+0x26ac511)
[#10](/bitcoin-bitcoin/10/) 0x55d467694c55 (/tmp/cirrus-ci-build/ci/scratch/build/bitcoin-x86_64-pc-linux-gnu/src/test/fuzz/fuzz+0x26abc55)
[#11](/bitcoin-bitcoin/11/) 0x55d467697577 (/tmp/cirrus-ci-build/ci/scratch/build/bitcoin-x86_64-pc-linux-gnu/src/test/fuzz/fuzz+0x26ae577)
[#12](/bitcoin-bitcoin/12/) 0x55d4676978d9 (/tmp/cirrus-ci-build/ci/scratch/build/bitcoin-x86_64-pc-linux-gnu/src/test/fuzz/fuzz+0x26ae8d9)
[#13](/bitcoin-bitcoin/13/) 0x55d4676865ae (/tmp/cirrus-ci-build/ci/scratch/build/bitcoin-x86_64-pc-linux-gnu/src/test/fuzz/fuzz+0x269d5ae)
[#14](/bitcoin-bitcoin/14/) 0x55d4676af3f2 (/tmp/cirrus-ci-build/ci/scratch/build/bitcoin-x86_64-pc-linux-gnu/src/test/fuzz/fuzz+0x26c63f2)
[#15](/bitcoin-bitcoin/15/) 0x7f2cc72800b2 (/lib/x86_64-linux-gnu/libc.so.6+0x270b2)
[#16](/bitcoin-bitcoin/16/) 0x55d46765b34d (/tmp/cirrus-ci-build/ci/scratch/build/bitcoin-x86_64-pc-linux-gnu/src/test/fuzz/fuzz+0x267234d)
SUMMARY: UndefinedBehaviorSanitizer: implicit-signed-integer-truncation netaddress.cpp:1190:18 in
MS: 0 ; base unit: 0000000000000000000000000000000000000000
artifact_prefix='./'; Test unit written to ./crash-0671aac15e619e99522e2119487eaa9cc97e5a34
Target "/tmp/cirrus-ci-build/ci/scratch/build/bitcoin-x86_64-pc-linux-gnu/src/test/fuzz/fuzz -runs=1 /tmp/cirrus-ci-build/ci/scratch/qa-assets/fuzz_seed_corpus/banman" failed with exit code 1
