Michael J. Ruhl dbc2970cae IB/hfi1: Incorrect sizing of sge for PIO will OOPs ... An incorrect sge sizing in the HFI PIO path will cause an OOPs similar to this: BUG: unable to handle kernel NULL pointer dereference at (null) IP: [] hfi1_verbs_send_pio+0x3d8/0x530 [hfi1] PGD 0 Oops: 0000 1 SMP Call Trace: ? hfi1_verbs_send_dma+0xad0/0xad0 [hfi1] hfi1_verbs_send+0xdf/0x250 [hfi1] ? make_rc_ack+0xa80/0xa80 [hfi1] hfi1_do_send+0x192/0x430 [hfi1] hfi1_do_send_from_rvt+0x10/0x20 [hfi1] rvt_post_send+0x369/0x820 [rdmavt] ib_uverbs_post_send+0x317/0x570 [ib_uverbs] ib_uverbs_write+0x26f/0x420 [ib_uverbs] ? security_file_permission+0x21/0xa0 vfs_write+0xbd/0x1e0 ? mntput+0x24/0x40 SyS_write+0x7f/0xe0 system_call_fastpath+0x16/0x1b Fix by adding the missing sizing check to correctly determine the sge length. Fixes: 7724105686 ("IB/hfi1: add driver files") Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>		2018-12-06 19:50:08 -07:00
..
core	IB/core: Enable getting an object type from a given uobject	2018-12-04 13:46:41 -05:00
hw	IB/hfi1: Incorrect sizing of sge for PIO will OOPs	2018-12-06 19:50:08 -07:00
sw	rxe: IB_WR_REG_MR does not capture MR's iova field	2018-11-29 17:10:06 -07:00
ulp	IB/core: Make function ib_fmr_pool_unmap return void	2018-11-21 16:13:02 -07:00
Kconfig	RDMA: Fix building with CONFIG_MMU=n	2018-10-03 16:01:03 -06:00
Makefile	IB/rdmavt: Create module framework and handle driver registration	2016-03-10 20:37:04 -05:00