Messages in this thread | | | Subject | Re: [BUG] scsi: ses: out of bound accessing in ses_enclosure_data_process | From | Junxiao Bi <> | Date | Mon, 18 Mar 2019 12:17:27 +0800 |
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Add lpfc maintainer James & Dick. Could you help take a look?
Thanks,
Junxiao.
On 3/18/19 11:13 AM, jianchao.wang wrote: > Would anyone please give some suggestions ? > > It looks like there somethings wrong in the read-in data, > > /* skip all the enclosure descriptors */ > for (i = 0; i < num_enclosures && type_ptr < buf + len; i++) { > types += type_ptr[2]; > type_ptr += type_ptr[3] + 4; ----> here > } > Then the typr_ptr got out of bound of the buffer. > > > Thanks > Jianchao > > On 3/14/19 11:19 AM, jianchao.wang wrote: >> Dear all >> >> When our customer probe the lpfc devices, they encountered odd memory corruption issues, >> and we get 'out of bound' access warning at following position after open KASAN >> >> ses_enclosure_data_process >> >> for (i = 0; i < types; i++, type_ptr += 4) { >> for (j = 0; j < type_ptr[1]; j++) { >> ^^^^^^^^^^^ >> out of bound >> >> With some debug log, I got following, >> >> page1 ffff88042d1aad20 len 32 types 5 type_ptr ffff88042d1aad64 >> >> Would anyone please give some suggestions on this ? >> >> Thanks >> Jianchao >>
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