[Bug 3184] New: -bI:sieve crashes if DISABLE_SIEVE_FILTER=yes

https://bugs.exim.org/show_bug.cgi?id=3184

            Bug ID: 3184
           Summary: -bI:sieve crashes if DISABLE_SIEVE_FILTER=yes
           Product: Exim
           Version: 4.99
          Hardware: x86
                OS: FreeBSD
            Status: NEW
          Severity: bug
          Priority: medium
         Component: General execution
          Assignee: [email protected]
          Reporter: [email protected]
                CC: [email protected]

# exim -bI:sieve
2025-12-22 09:07:59 SIGSEGV (fault address: (nil))
2025-12-22 09:07:59 SIGSEGV (null pointer indirection)
2025-12-22 09:07:59 SIGSEGV (fresh-exec:   519 initializing
)
2025-12-22 09:07:59 backtrace
2025-12-22 09:07:59 ---
2025-12-22 09:07:59     0x27e1e4 <stackdump+0x24> at /usr/local/bin/exim
2025-12-22 09:07:59     0x287178 <segv_handler+0x98> at /usr/local/bin/exim
2025-12-22 09:07:59     0x8295e24af <pthread_sigmask+0x54f> at /lib/libthr.so.3
2025-12-22 09:07:59     0x8295e1a6b <pthread_setschedparam+0x85b> at
/lib/libthr.so.3
2025-12-22 09:07:59     0x820e932d3 <OCSP_RESPONSE_new+0x820b6cd93> at ???
2025-12-22 09:07:59     0x27d533 <misc_mod_find+0x53> at /usr/local/bin/exim
2025-12-22 09:07:59     0x287feb <show_exim_information+0x2b> at
/usr/local/bin/exim
2025-12-22 09:07:59     0x28506e <main+0x631e> at /usr/local/bin/exim
2025-12-22 09:07:59     0x82798fe34 <__libc_start1+0x124> at /lib/libc.so.7
2025-12-22 09:07:59 ---

Commenting out DISABLE_SIEVE_FILTER=yes

# exim -bI:sieve
comparator-i;ascii-numeric
copy
encoded-character
enotify
envelope
fileinto
subaddress
vacation

Exim version 4.99.1-121-7873db47a #1 built 18-Dec-2025 12:33:47

also with 4.99.1-135-6d75a89d2

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