Passing the flag --fdpass causes a segmentation fault with clamdscan (v. 0.103.2/26102) on macOS (10.15).
This issue arose about 6 months ago, Here's What I see from a core dump: Dump core: > sudo clamdscan --multiscan --quiet --fdpass --move=/opt/Quarantine/ > --log=/opt/local/var/log/clamav/ClamavScanSchedule.log > Segmentation fault: 11 Stack trace: > $ lldb `which clamdscan` -c /cores/core.67147 > (lldb) target create "/opt/local/bin/clamdscan" --core "/cores/core.67147" > Core file '/cores/core.67147' (x86_64) was loaded. > > (lldb) bt all > * thread #1, stop reason = signal SIGSTOP > * frame #0: 0x00007fff67ef8bb0 libsystem_platform.dylib`_platform_strncpy + > 112 > frame #1: 0x000000010801c086 clamdscan`match_regex + 129 > frame #2: 0x0000000108018af0 clamdscan`chkpath + 64 > frame #3: 0x0000000108019205 clamdscan`parallel_callback + 110 > frame #4: 0x00000001081841c1 libclamav.9.dylib`cli_ftw + 271 > frame #5: 0x00000001080190d6 clamdscan`parallel_client_scan + 172 > frame #6: 0x000000010801a2d4 clamdscan`client_scan + 222 > frame #7: 0x000000010801a1b0 clamdscan`client + 940 > frame #8: 0x0000000108017f3c clamdscan`main + 728 > frame #9: 0x00007fff67d01cc9 libdyld.dylib`start + 1 Reference: https://trac.macports.org/ticket/62369#comment:5
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