Messages in this thread | | | Subject | Re: [BUG] scsi: ses: out of bound accessing in ses_enclosure_data_process | From | "jianchao.wang" <> | Date | Mon, 18 Mar 2019 11:13:18 +0800 |
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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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