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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2018-03-19 13:34:01 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-03-21 18:34:19 -0400 |
| commit | 10ff6be6de59e1c7d0bd5d899f896ce991f4fdc2 (patch) | |
| tree | 6e204ea09c2e6bfc659aec402a4ee7c9a61eefca | |
| parent | 24268fd1ad3213079f1af09359b4243fffa95869 (diff) | |
| download | linux-10ff6be6de59e1c7d0bd5d899f896ce991f4fdc2.tar.bz2 | |
scsi: dpt_i2o: use after free in __adpt_reset()
In __adpt_reset() the problem is that adpt_hba_reset() frees "pHba" on
error but we dereference it to print the name in the error message.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/scsi/dpt_i2o.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c index 67379e4d0bf9..35d45903ed2e 100644 --- a/drivers/scsi/dpt_i2o.c +++ b/drivers/scsi/dpt_i2o.c @@ -799,14 +799,17 @@ static int __adpt_reset(struct scsi_cmnd* cmd) { adpt_hba* pHba; int rcode; + char name[32]; + pHba = (adpt_hba*)cmd->device->host->hostdata[0]; - printk(KERN_WARNING"%s: Hba Reset: scsi id %d: tid: %d\n",pHba->name,cmd->device->channel,pHba->channel[cmd->device->channel].tid ); + strncpy(name, pHba->name, sizeof(name)); + printk(KERN_WARNING"%s: Hba Reset: scsi id %d: tid: %d\n", name, cmd->device->channel, pHba->channel[cmd->device->channel].tid); rcode = adpt_hba_reset(pHba); if(rcode == 0){ - printk(KERN_WARNING"%s: HBA reset complete\n",pHba->name); + printk(KERN_WARNING"%s: HBA reset complete\n", name); return SUCCESS; } else { - printk(KERN_WARNING"%s: HBA reset failed (%x)\n",pHba->name, rcode); + printk(KERN_WARNING"%s: HBA reset failed (%x)\n", name, rcode); return FAILED; } } |