--- vuln_string_writer ---
-e:1: [BUG] Segmentation fault at 0x0000564d39706000
ruby 3.3.8 (2025-04-09 revision b200bad6cd) [x86_64-linux-gnu]

-- Control frame information -----------------------------------------------
c:0003 p:---- s:0012 e:000011 CFUNC  :(null)
c:0002 p:0030 s:0007 E:001e08 EVAL   -e:1 [FINISH]
c:0001 p:0000 s:0003 E:000b60 DUMMY  [FINISH]

-- Ruby level backtrace information ----------------------------------------
-e:1:in `<main>'
-e:1:in unknown method

-- Threading information ---------------------------------------------------
Total ractor count: 1
Ruby thread count for this ractor: 1

-- Machine register context ------------------------------------------------
 RIP: 0x00007f2e59e734ce RBP: 0x00007fffbca8aa60 RSP: 0x00007fffbca8aa28
 RAX: 0x0000564d395453b2 RBX: 0x0000564d393dd090 RCX: 0x0000564db95451b1
 RDX: 0x000000007fffffff RDI: 0x0000564d39705e80 RSI: 0x0000000000000020
  R8: 0x00007f2e59bbe050  R9: 0x00007f2e59bbe048 R10: 0x0000000000000001
 R11: 0x0000564d39575010 R12: 0x0000000000000003 R13: 0x0000000000000000
 R14: 0x00007f2e59a27d10 R15: 0x00007f2e59add200 EFL: 0x0000000000010297

-- C level backtrace information -------------------------------------------