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hidapi/linux: fixed crash if uevent info isn't available

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Signed-off-by: Sam Lantinga <slouken@libsdl.org>
This commit is contained in:
Sam Lantinga
2023-05-25 17:13:41 -07:00
parent b35d813ebb
commit e6834a1535
1 changed files with 5 additions and 0 deletions
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src/hidapi/linux/hid.c
+5
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@@ -513,6 +513,11 @@ static int parse_uevent_info(const char *uevent, unsigned *bus_type,
char **serial_number_utf8, char **product_name_utf8) char **serial_number_utf8, char **product_name_utf8)
{ {
char tmp[1024]; char tmp[1024];
if (!uevent) {
return 0;
}
size_t uevent_len = strlen(uevent); size_t uevent_len = strlen(uevent);
if (uevent_len > sizeof(tmp) - 1) if (uevent_len > sizeof(tmp) - 1)
uevent_len = sizeof(tmp) - 1; uevent_len = sizeof(tmp) - 1;