tarantool / tarantool / 21478333579

push

github

box: fix fuzzer UB report in xrow_decode

The `lsn` and `tsn` fields of `struct xrow_header` are signed. So UB on
their arithmetic is possible if fuzzer feeds really odd input into
`xrow_decode`. This is barely possible in practice but to silent fuzzer
let's do arithmetic in unsigned.

Closes #10578

NO_TEST=issue is not really possible, should be handled by fuzzer
NO_CHANGELOG=issue is not really possible
NO_DOC=bugfix

(cherry picked from commit 03048fa79)

68834 of 116392 branches covered (59.14%)

6 of 6 new or added lines in 1 file covered. (100.0%)

103544 of 118223 relevant lines covered (87.58%)

1636239.28 hits per line