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reject null op/path/from fields in json_patch_apply

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Javid Khan
2026-07-16 12:55:41 +05:30
parent 0ea5f6c615
commit eed664e06a
3 changed files with 29 additions and 1 deletions
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json_patch.c
+12
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@@ -209,6 +209,10 @@ static int json_patch_apply_move_copy(struct json_object **res,
}
from_s = json_object_get_string(jfrom);
if (from_s == NULL) {
_set_err(EINVAL, "Patch object 'from' field is not a string");
return -1;
}
from_s_len = strlen(from_s);
if (strncmp(from_s, path, from_s_len) == 0) {
@@ -320,11 +324,19 @@ int json_patch_apply(struct json_object *copy_from, struct json_object *patch,
return -1;
}
op = json_object_get_string(jop);
if (op == NULL) {
_set_err(EINVAL, "Patch object 'op' field is not a string");
return -1;
}
if (!json_object_object_get_ex(patch_elem, "path", &jpath)) {
_set_err(EINVAL, "Patch object does not contain 'path' field");
return -1;
}
path = json_object_get_string(jpath); // Note: empty string is ok!
if (path == NULL) {
_set_err(EINVAL, "Patch object 'path' field is not a string");
return -1;
}
if (!strcmp(op, "test"))
rc = json_patch_apply_test(base, patch_elem, path, patch_error);