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Prevent invalid mvcc timestamps from causing critical errors

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Former-commit-id: 6f2dbb00119b1d0a1f5a2543d2c6af05f83ef5de
This commit is contained in:
VivekSainiEQ 2021-08-06 16:55:24 +00:00 committed by John Sully
parent 39dccbbf21
commit 72e02159f4
3 changed files with 18 additions and 2 deletions
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5
src/cluster.cpp
View File

@ -5167,11 +5167,12 @@ void dumpCommand(client *c) {
/* KEYDB.MVCCRESTORE key mvcc expire serialized-value */
void mvccrestoreCommand(client *c) {
long long mvcc, expire;
long long expire;
uint64_t mvcc;
robj *key = c->argv[1], *obj = nullptr;
int type;
if (getLongLongFromObjectOrReply(c, c->argv[2], &mvcc, "Invalid MVCC Tstamp") != C_OK)
if (getUnsignedLongLongFromObjectOrReply(c, c->argv[2], &mvcc, "Invalid MVCC Tstamp") != C_OK)
return;
if (getLongLongFromObjectOrReply(c, c->argv[3], &expire, "Invalid expire") != C_OK)

14
src/object.cpp
View File

@ -763,6 +763,20 @@ int getLongLongFromObjectOrReply(client *c, robj *o, long long *target, const ch
return C_OK;
}
int getUnsignedLongLongFromObjectOrReply(client *c, robj *o, uint64_t *target, const char *msg) {
uint64_t value;
if (getUnsignedLongLongFromObject(o, &value) != C_OK) {
if (msg != NULL) {
addReplyError(c,(char*)msg);
} else {
addReplyError(c,"value is not an integer or out of range");
}
return C_ERR;
}
*target = value;
return C_OK;
}
int getLongFromObjectOrReply(client *c, robj *o, long *target, const char *msg) {
long long value;

1
src/server.h
View File

@ -2376,6 +2376,7 @@ robj *createZsetZiplistObject(void);
robj *createStreamObject(void);
robj *createModuleObject(moduleType *mt, void *value);
int getLongFromObjectOrReply(client *c, robj *o, long *target, const char *msg);
int getUnsignedLongLongFromObjectOrReply(client *c, robj *o, uint64_t *target, const char *msg);
int getPositiveLongFromObjectOrReply(client *c, robj *o, long *target, const char *msg);
int getRangeLongFromObjectOrReply(client *c, robj *o, long min, long max, long *target, const char *msg);
int checkType(client *c, robj_roptr o, int type);