diff options
Diffstat (limited to 'scripts/mod')
| -rw-r--r-- | scripts/mod/file2alias.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c index 4e99393a35f1..20e542a888c4 100644 --- a/scripts/mod/file2alias.c +++ b/scripts/mod/file2alias.c @@ -1253,6 +1253,8 @@ static void do_tee_entry(struct module *mod, void *symval) static void do_wmi_entry(struct module *mod, void *symval) { DEF_FIELD_ADDR(symval, wmi_device_id, guid_string); + char result[sizeof(*guid_string)]; + int i; if (strlen(*guid_string) != UUID_STRING_LEN) { warn("Invalid WMI device id 'wmi:%s' in '%s'\n", @@ -1260,7 +1262,31 @@ static void do_wmi_entry(struct module *mod, void *symval) return; } - module_alias_printf(mod, false, WMI_MODULE_PREFIX "%s", *guid_string); + for (i = 0; i < UUID_STRING_LEN; i++) { + char value = (*guid_string)[i]; + bool valid = false; + + if (i == 8 || i == 13 || i == 18 || i == 23) { + if (value == '-') + valid = true; + } else { + if (isxdigit(value)) + valid = true; + } + + if (!valid) { + warn("Invalid character %c inside WMI GUID string '%s' in '%s'\n", + value, *guid_string, mod->name); + return; + } + + /* Some GUIDs from BMOF definitions contain lowercase characters */ + result[i] = toupper(value); + } + + result[i] = '\0'; + + module_alias_printf(mod, false, WMI_MODULE_PREFIX "%s", result); } /* Looks like: mhi:S */ |