chore: merge upstream #1
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cc @KpwnZ |
After changing the Linux kernel security parameters on my system, this tool has broken. For example: ``` gef> ksymaddr-remote -r [+] Wait for memory scan [*] Make sure you are in ring0 (=kernel mode) [+] Try to re-parse (ignore cached config) [+] Failed to parse ``` It took me some time to debug this and find out the real reason: setting sysctl `kernel.yama.ptrace_scope` to non-zero value breaks the `pagewalk` command that depends on reading `/proc/pid/mem`. Let's improve the debug output. This would allow to detect the problem immediately: ``` gef> ksymaddr-remote -r [+] Wait for memory scan ------------------------------- Exception raised ------------------------------- PermissionError: [Errno 13] Отказано в доступе: '/proc/24150/mem' ----------------------------- Detailed stacktrace ------------------------------ ... -------------------------------------------------------------------------------- [*] Make sure you are in ring0 (=kernel mode) [+] Try to re-parse (ignore cached config) [+] Failed to parse ```
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fix is_valid_addr
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