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RDKE: 61924 / RDKB: 66749 Mythos Defect Remediation - RRD-1 #262

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RDKE: 61924 / RDKB: 66749 Mythos Defect Remediation - RRD-1 #262

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a07a714
Hardening ISSUETYPE handling by sanitizing user input
Kaavyashree2 Nov 4, 2026
20e5834
Test Addition for finder type conversion
Kaavyashree2 Nov 4, 2026
3eef682
Preventing INT overflow and resolving type mismatch
Kaavyashree2 Nov 4, 2026
c6a518e
Update rrdMsgPackDecoder.c
Kaavyashree2 Nov 4, 2026
1df6825
Syntax error fix
Kaavyashree2 Nov 4, 2026
8961fdb
Testcase addition for INT overflow
Kaavyashree2 Nov 6, 2026
6f0c680
Adding log statements
Kaavyashree2 Nov 6, 2026
1fd7fd3
Addition of debug statements
Kaavyashree2 Nov 6, 2026
20704da
Removing testcase due to impracticality
Kaavyashree2 Nov 6, 2026
8b39bae
Reverting changes
Kaavyashree2 Nov 11, 2026
fafcbdd
l2_coverage_details.json added
Kaavyashree2 Nov 11, 2026
bd39b4d
Removing unwanted characters
Kaavyashree2 Nov 11, 2026
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2 changes: 1 addition & 1 deletion scripts/uploadRRDLogs.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -34,7 +34,7 @@ OUTFILE='/tmp/DCMSettings.conf'
MAC=`getMacAddressOnly`
TIMESTAMP=`date "+%Y-%m-%d-%H-%M-%S%p"`
RRD_LOG_FILE="$LOG_PATH/remote-debugger.log"
ISSUETYPE=`echo $2 | tr '[a-z]' '[A-Z]'`
ISSUETYPE=$(printf '%s' "$2" | tr '[:lower:]' '[:upper:]' | tr -cd 'A-Z0-9_-')
RRD_LOG_PATH="$1"
RRD_LOG_DIR="/tmp/rrd/"
UPLOAD_DEBUG_FILE="${MAC}_${ISSUETYPE}_${TIMESTAMP}_RRD_DEBUG_LOGS.tgz"
Expand Down
56 changes: 29 additions & 27 deletions src/rrdMsgPackDecoder.c
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,8 @@
#include <stdarg.h>
#include <ctype.h>
#include <time.h>
#include <limits.h>
#include <stdint.h>
#include "rrdMsgPackDecoder.h"
#include "rrdCommon.h"

Expand All @@ -44,29 +46,15 @@ msgpack_object *__finder(const char *name,
{
if (MSGPACK_OBJECT_STR == map->ptr[i].key.type)
{
if (expect_type == map->ptr[i].val.type)
if ((expect_type == map->ptr[i].val.type) &&
(0 == match(&(map->ptr[i]), name)))
{
if (0 == match(&(map->ptr[i]), name))
{
return &map->ptr[i].val;
}
}
else if (MSGPACK_OBJECT_STR == map->ptr[i].val.type)
{
if (0 == strncmp(map->ptr[i].key.via.str.ptr, name, strlen(name)))
{
return &map->ptr[i].val;
}
}
else
{
if (0 == strncmp(map->ptr[i].key.via.str.ptr, name, strlen(name)))
{
return &map->ptr[i].val;
}
}
}

}
}

errno = MISSING_ENTRY;
return NULL;
}
Expand Down Expand Up @@ -136,9 +124,9 @@ void *helper_convert(const void *buf, size_t len,
else if (NULL != wrapper && 0 != strcmp(wrapper, "parameters"))
{
inner = __finder(wrapper, expect_type, &msg.data.via.map);
subdoc_name = __finder("subdoc_name", expect_type, &msg.data.via.map);
version = __finder("version", expect_type, &msg.data.via.map);
transaction_id = __finder("transaction_id", expect_type, &msg.data.via.map);
subdoc_name = __finder("subdoc_name", MSGPACK_OBJECT_STR, &msg.data.via.map);
version = __finder("version", MSGPACK_OBJECT_POSITIVE_INTEGER, &msg.data.via.map);
transaction_id = __finder("transaction_id", MSGPACK_OBJECT_POSITIVE_INTEGER, &msg.data.via.map);
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if (((NULL != inner) && (0 == (process)(p, 4, inner, subdoc_name, version, transaction_id))) ||
((true == optional) && (NULL == inner)))
{
Expand Down Expand Up @@ -298,16 +286,25 @@ const char *remotedebuggerdoc_strerror(int errnum)
* @param msgpack_object_array *arr - The msgpack array containing the issue types.
* @return int - The required size of the issue type string.
*/
int getReqTotalSizeOfIssueTypesStr(msgpack_object_array *arr)
size_t getReqTotalSizeOfIssueTypesStr(msgpack_object_array *arr)
{
int index = 0, size = 0;
size_t index = 0;
size_t size = 0;
for(index = 0; index < arr->size; index++)
{
if(arr->ptr[index].type == MSGPACK_OBJECT_STR)
{
{
if (SIZE_MAX - size < arr->ptr[index].via.str.size)
{
return 0;
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}
size += arr->ptr[index].via.str.size;
}
}
if (SIZE_MAX - size < arr->size + 1)
{
return 0;
}
return (size + arr->size + 1); /* Need to add Number of Required "," between each string*/
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}

Expand All @@ -322,7 +319,8 @@ int process_remotedebuggerparams(remotedebuggerparam_t *rrdParam, msgpack_object
{
int left = map->size;
uint8_t objects_left = 1;
int index = 0, resultLen = 0;
int index = 0;
size_t resultLen = 0;
msgpack_object_kv *p = NULL;
msgpack_object_array *arr = NULL;
p = map->ptr;
Expand All @@ -336,7 +334,11 @@ int process_remotedebuggerparams(remotedebuggerparam_t *rrdParam, msgpack_object
{
arr = &p->val.via.array;
resultLen = getReqTotalSizeOfIssueTypesStr(arr);
RDK_LOG(RDK_LOG_DEBUG, LOG_REMDEBUG, "[%s:%d]: Size:%d \n", __FUNCTION__, __LINE__,resultLen);
if (resultLen == 0) {
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RDK_LOG(RDK_LOG_ERROR, LOG_REMDEBUG, "[%s:%d]: Invalid IssueType size\n", __FUNCTION__, __LINE__);
return -1;
}
RDK_LOG(RDK_LOG_DEBUG, LOG_REMDEBUG, "[%s:%d]: Size:%zu \n", __FUNCTION__, __LINE__,resultLen);
rrdParam->length = resultLen;
rrdParam->commandList = (char *)calloc(resultLen + 1, sizeof(char));
if(rrdParam->commandList != NULL)
Expand Down
57 changes: 43 additions & 14 deletions src/unittest/rrdUnitTestRunner.cpp
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Expand Up @@ -3263,41 +3263,46 @@ TEST(FinderTest, KeyTypeStrExpectTypeMatch)
EXPECT_STREQ(result->via.str.ptr, "value");
}

TEST(FinderTest, KeyTypeStrValTypeStrMatch)
TEST(FinderTest, KeyTypeStrValTypeAnyMatch)
{
msgpack_object_map map;
msgpack_object_kv kv;
kv.key.type = MSGPACK_OBJECT_STR;
kv.key.via.str.ptr = "name";
kv.key.via.str.size = strlen("name");
kv.val.type = MSGPACK_OBJECT_STR;
kv.val.via.str.ptr = "value";
kv.val.via.str.size = strlen("value");
kv.val.type = MSGPACK_OBJECT_NIL;
map.size = 1;
map.ptr = &kv;
msgpack_object *result = __finder("name", MSGPACK_OBJECT_NIL, &map);

ASSERT_NE(result, nullptr);
EXPECT_EQ(result->type, MSGPACK_OBJECT_STR);
EXPECT_STREQ(result->via.str.ptr, "value");
EXPECT_EQ(result->type, MSGPACK_OBJECT_NIL);
}

TEST(FinderTest, KeyTypeStrValTypeAnyMatch)
TEST(FinderTest, NameMatchesButTypeMismatchReturnsNull)
{
msgpack_object_map map;
msgpack_object_kv kv;

kv.key.type = MSGPACK_OBJECT_STR;
kv.key.via.str.ptr = "name";
kv.key.via.str.size = strlen("name");
kv.val.type = MSGPACK_OBJECT_NIL;
kv.key.via.str.ptr = "version";
kv.key.via.str.size = strlen("version");

kv.val.type = MSGPACK_OBJECT_STR;
kv.val.via.str.ptr = "abc";
kv.val.via.str.size = strlen("abc");

map.size = 1;
map.ptr = &kv;
msgpack_object *result = __finder("name", MSGPACK_OBJECT_NIL, &map);

ASSERT_NE(result, nullptr);
EXPECT_EQ(result->type, MSGPACK_OBJECT_NIL);
}
msgpack_object *result =
__finder("version",
MSGPACK_OBJECT_POSITIVE_INTEGER,
&map);

EXPECT_EQ(result, nullptr);
EXPECT_EQ(errno, MISSING_ENTRY);
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}
/* --------------- Test get_msgpack_unpack_status() from rrdMsgPackDecoder --------------- */
TEST(GetMsgpackUnpackStatusTest, DecodedbufIsNullAndSizeIsZero)
{
Expand Down Expand Up @@ -3399,6 +3404,30 @@ TEST(GetReqTotalSizeOfIssueTypesStrTest, ArraySizeFiveWithStringTypes)
EXPECT_EQ(getReqTotalSizeOfIssueTypesStr(&arr), 1 + 5 + total_strlen);
}

TEST(GetReqTotalSizeOfIssueTypesStrTest, DetectsSizeOverflow)
{
msgpack_object obj_array[2];

obj_array[0].type = MSGPACK_OBJECT_STR;
obj_array[0].via.str.size = SIZE_MAX - 1;

obj_array[1].type = MSGPACK_OBJECT_STR;
obj_array[1].via.str.size = 10;

printf("SIZE_MAX=%zu\n", (size_t)SIZE_MAX);
printf("obj0 size=%zu\n", (size_t)obj_array[0].via.str.size);
printf("obj1 size=%zu\n", (size_t)obj_array[1].via.str.size);

msgpack_object_array arr = {2, obj_array};

size_t result = getReqTotalSizeOfIssueTypesStr(&arr);

printf("result=%zu\n", result);


EXPECT_EQ(result, 0u);
}

/* --------------- Test FreeResources_RemoteDebugger() from rrdMsgPackDecoder --------------- */
TEST(FreeResourcesRemoteDebuggerTest, NullPointerArgument)
{
Expand Down
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