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LibC: Fix strncpy() overflow in /etc/passwd parsing

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This commit is contained in:
Andreas Kling 2020-04-13 11:56:53 +02:00
parent c1607dc41f
commit e3df925e48
Notes: sideshowbarker 2024-07-19 07:38:13 +09:00
1 changed files with 5 additions and 5 deletions
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10
Libraries/LibC/pwd.cpp
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@ -146,11 +146,11 @@ next_entry:
__pwdb_entry->pw_gecos = __pwdb_entry->gecos_buffer;
__pwdb_entry->pw_dir = __pwdb_entry->dir_buffer;
__pwdb_entry->pw_shell = __pwdb_entry->shell_buffer;
strncpy(__pwdb_entry->name_buffer, e_name.characters(), PWDB_STR_MAX_LEN);
strncpy(__pwdb_entry->passwd_buffer, e_passwd.characters(), PWDB_STR_MAX_LEN);
strncpy(__pwdb_entry->gecos_buffer, e_gecos.characters(), PWDB_STR_MAX_LEN);
strncpy(__pwdb_entry->dir_buffer, e_dir.characters(), PWDB_STR_MAX_LEN);
strncpy(__pwdb_entry->shell_buffer, e_shell.characters(), PWDB_STR_MAX_LEN);
strncpy(__pwdb_entry->name_buffer, e_name.characters(), PWDB_STR_MAX_LEN - 1);
strncpy(__pwdb_entry->passwd_buffer, e_passwd.characters(), PWDB_STR_MAX_LEN - 1);
strncpy(__pwdb_entry->gecos_buffer, e_gecos.characters(), PWDB_STR_MAX_LEN - 1);
strncpy(__pwdb_entry->dir_buffer, e_dir.characters(), PWDB_STR_MAX_LEN - 1);
strncpy(__pwdb_entry->shell_buffer, e_shell.characters(), PWDB_STR_MAX_LEN - 1);
return __pwdb_entry;
}