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Hi, if you disable a service and run "nscd -g", the nscd daemon will crash by dereferencing a NULL pointer: 2004-09-13 Thorsten Kukuk <kukuk@suse.de> * nscd/nscd_stat.c: don't access dbs[cnt].head for disabled services. --- nscd/nscd_stat.c 10 Sep 2004 20:31:05 -0000 1.9 +++ nscd/nscd_stat.c 13 Sep 2004 13:02:56 -0000 @@ -88,25 +88,29 @@ for (cnt = 0; cnt < lastdb; ++cnt) { + memset (&data.dbs[cnt], 0, sizeof (data.dbs[cnt])); data.dbs[cnt].enabled = dbs[cnt].enabled; data.dbs[cnt].check_file = dbs[cnt].check_file; data.dbs[cnt].shared = dbs[cnt].shared; data.dbs[cnt].persistent = dbs[cnt].persistent; - data.dbs[cnt].module = dbs[cnt].head->module; data.dbs[cnt].postimeout = dbs[cnt].postimeout; data.dbs[cnt].negtimeout = dbs[cnt].negtimeout; - data.dbs[cnt].poshit = dbs[cnt].head->poshit; - data.dbs[cnt].neghit = dbs[cnt].head->neghit; - data.dbs[cnt].posmiss = dbs[cnt].head->posmiss; - data.dbs[cnt].negmiss = dbs[cnt].head->negmiss; - data.dbs[cnt].nentries = dbs[cnt].head->nentries; - data.dbs[cnt].maxnentries = dbs[cnt].head->maxnentries; - data.dbs[cnt].datasize = dbs[cnt].head->data_size; - data.dbs[cnt].dataused = dbs[cnt].head->first_free; - data.dbs[cnt].maxnsearched = dbs[cnt].head->maxnsearched; - data.dbs[cnt].rdlockdelayed = dbs[cnt].head->rdlockdelayed; - data.dbs[cnt].wrlockdelayed = dbs[cnt].head->wrlockdelayed; - data.dbs[cnt].addfailed = dbs[cnt].head->addfailed; + if (dbs[cnt].head != NULL) + { + data.dbs[cnt].module = dbs[cnt].head->module; + data.dbs[cnt].poshit = dbs[cnt].head->poshit; + data.dbs[cnt].neghit = dbs[cnt].head->neghit; + data.dbs[cnt].posmiss = dbs[cnt].head->posmiss; + data.dbs[cnt].negmiss = dbs[cnt].head->negmiss; + data.dbs[cnt].nentries = dbs[cnt].head->nentries; + data.dbs[cnt].maxnentries = dbs[cnt].head->maxnentries; + data.dbs[cnt].datasize = dbs[cnt].head->data_size; + data.dbs[cnt].dataused = dbs[cnt].head->first_free; + data.dbs[cnt].maxnsearched = dbs[cnt].head->maxnsearched; + data.dbs[cnt].rdlockdelayed = dbs[cnt].head->rdlockdelayed; + data.dbs[cnt].wrlockdelayed = dbs[cnt].head->wrlockdelayed; + data.dbs[cnt].addfailed = dbs[cnt].head->addfailed; + } } if (TEMP_FAILURE_RETRY (write (fd, &data, sizeof (data))) != sizeof (data)) -- Thorsten Kukuk http://www.suse.de/~kukuk/ kukuk@suse.de SuSE Linux AG Maxfeldstr. 5 D-90409 Nuernberg -------------------------------------------------------------------- Key fingerprint = A368 676B 5E1B 3E46 CFCE 2D97 F8FD 4E23 56C6 FB4B
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