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Fix pattern matching memory corruption

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This commit is contained in:
Martin Lund 2025-04-13 13:25:25 +02:00
parent 2e86718973
commit f87f470415
1 changed files with 2 additions and 1 deletions
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3
src/configfile.c
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@ -428,12 +428,13 @@ static char *match_and_replace(const char *str, const char *pattern, char *devic
assert(pattern != NULL); assert(pattern != NULL);
assert(device != NULL); assert(device != NULL);
char *string = strndup(device, PATH_MAX); char *string = calloc(PATH_MAX, 1);
if (string == NULL) if (string == NULL)
{ {
tio_debug_printf("Failure allocating string memory\n"); tio_debug_printf("Failure allocating string memory\n");
return NULL; return NULL;
} }
strncpy(string, device, PATH_MAX - 1);
/* Find matches of pattern in str. For each match, replace any '%mN' in the /* Find matches of pattern in str. For each match, replace any '%mN' in the
* copy of the device string with the corresponding match subexpression and * copy of the device string with the corresponding match subexpression and