Based on the given code slice and the potential vulnerability among CWE-401  and CWE-476 (NULL Pointer Dereference) in the specified lines, here are five possible patches:

Patch 1:
```c
void rvu_npc_freemem(struct rvu *rvu)
{
    struct npc_pkind *pkind = &rvu->hw->pkind;
    struct npc_mcam *mcam = &rvu->hw->mcam;

    if (pkind->rsrc.bmap) {
        kfree(pkind->rsrc.bmap);
        pkind->rsrc.bmap = NULL;
    }
    npc_mcam_rsrcs_deinit(rvu);
    if (mcam->counters.bmap) {
        kfree(mcam->counters.bmap);
        mcam->counters.bmap = NULL;
    }
    if (rvu->kpu_prfl_addr)
        iounmap(rvu->kpu_prfl_addr);
    else if (rvu->kpu_fwdata) {
        kfree(rvu->kpu_fwdata);
        rvu->kpu_fwdata = NULL;
    }
    mutex_destroy(&mcam->lock);
}
```

Patch 2:
```c
void rvu_npc_freemem(struct rvu *rvu)
{
    struct npc_pkind *pkind = &rvu->hw->pkind;
    struct npc_mcam *mcam = &rvu->hw->mcam;

    if (pkind && pkind->rsrc.bmap) {
        kfree(pkind->rsrc.bmap);
        pkind->rsrc.bmap = NULL;
    }
    npc_mcam_rsrcs_deinit(rvu);
    if (mcam && mcam->counters.bmap) {
        kfree(mcam->counters.bmap);
        mcam->counters.bmap = NULL;
    }
    if (rvu->kpu_prfl_addr)
        iounmap(rvu->kpu_prfl_addr);
    else if (rvu->kpu_fwdata) {
        kfree(rvu->kpu_fwdata);
        rvu->kpu_fwdata = NULL;
    }
    if (mcam)
        mutex_destroy(&mcam->lock);
}
```

Patch 3:
```c
void rvu_npc_freemem(struct rvu *rvu)
{
    if (!rvu || !rvu->hw)
        return;

    struct npc_pkind *pkind = &rvu->hw->pkind;
    struct npc_mcam *mcam = &rvu->hw->mcam;

    if (pkind->rsrc.bmap) {
        kfree(pkind->rsrc.bmap);
        pkind->rsrc.bmap = NULL;
    }
    npc_mcam_rsrcs_deinit(rvu);
    if (mcam->counters.bmap) {
        kfree(mcam->counters.bmap);
        mcam->counters.bmap = NULL;
    }
    if (rvu->kpu_prfl_addr) {
        iounmap(rvu->kpu_prfl_addr);
        rvu->kpu_prfl_addr = NULL;
    } else if (rvu->kpu_fwdata) {
        kfree(rvu->kpu_fwdata);
        rvu->kpu_fwdata = NULL;
    }
    mutex_destroy(&mcam->lock);
}
```

Patch 4:
```c
void rvu_npc_freemem(struct rvu *rvu)
{
    if (!rvu || !rvu->hw)
        return;

    struct npc_pkind *pkind = &rvu->hw->pkind;
    struct npc_mcam *mcam = &rvu->hw->mcam;

    if (pkind && pkind->rsrc.bmap) {
        kfree(pkind->rsrc.bmap);
        pkind->rsrc.bmap = NULL;
    }
    npc_mcam_rsrcs_deinit(rvu);
    if (mcam && mcam->counters.bmap) {
        kfree(mcam->counters.bmap);
        mcam->counters.bmap = NULL;
    }
    if (rvu->kpu_prfl_addr) {
        iounmap(rvu->kpu_prfl_addr);
        rvu->kpu_prfl_addr = NULL;
    } else if (rvu->kpu_fwdata) {
        kfree(rvu->kpu_fwdata);
        rvu->kpu_fwdata = NULL;
    }
    if (mcam)
        mutex_destroy(&mcam->lock);
}
```

Patch 5:
```c
void rvu_npc_freemem(struct rvu *rvu)
{
    if (!rvu || !rvu->hw)
        return;

    struct npc_pkind *pkind = &rvu->hw->pkind;
    struct npc_mcam *mcam = &rvu->hw->mcam;

    if (pkind && pkind->rsrc.bmap) {
        void *tmp = pkind->rsrc.bmap;
        pkind->rsrc.bmap = NULL;
        kfree(tmp);
    }
    npc_mcam_rsrcs_deinit(rvu);
    if (mcam && mcam->counters.bmap) {
        void *tmp = mcam->counters.bmap;
        mcam->counters.bmap = NULL;
        kfree(tmp);
    }
    if (rvu->kpu_prfl_addr) {
        iounmap(rvu->kpu_prfl_addr);
        rvu->kpu_prfl_addr = NULL;
    } else if (rvu->kpu_fwdata) {
        void *tmp = rvu->kpu_fwdata;
        rvu->kpu_fwdata = NULL;
        kfree(tmp);
    }
    if (mcam)
        mutex_destroy(&mcam->lock);
}
```

These patches address potential NULL pointer dereferences and use-after-free vulnerabilities by adding NULL checks and setting pointers to NULL after freeing memory.