https://github.com/torvalds/linux
Revision 45e6ae7ef21b907dacb18da62d5787d74a31d860 authored by Nitzan Carmi on 26 December 2017, 09:20:20 UTC, committed by Jason Gunthorpe on 27 December 2017, 22:24:41 UTC
ibmr.device is being set only after ib_alloc_mr() is
(successfully) complete. Therefore, in case mlx5_core_create_mkey()
return with error, the error flow calls mlx5_free_priv_descs()
which uses ibmr.device (which doesn't exist yet), causing
a NULL dereference oops.

To fix this, the IB device should be set in the mr struct earlier
stage (e.g. prior to calling mlx5_core_create_mkey()).

Fixes: 8a187ee52b04 ("IB/mlx5: Support the new memory registration API")
Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Nitzan Carmi <nitzanc@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
1 parent 4a50881
History
Tip revision: 45e6ae7ef21b907dacb18da62d5787d74a31d860 authored by Nitzan Carmi on 26 December 2017, 09:20:20 UTC
IB/mlx5: Fix mlx5_ib_alloc_mr error flow
Tip revision: 45e6ae7
File Mode Size
Documentation
arch
block
certs
crypto
drivers
firmware
fs
include
init
ipc
kernel
lib
mm
net
samples
scripts
security
sound
tools
usr
virt
.cocciconfig -rw-r--r-- 59 bytes
.get_maintainer.ignore -rw-r--r-- 31 bytes
.gitattributes -rw-r--r-- 30 bytes
.gitignore -rw-r--r-- 1.4 KB
.mailmap -rw-r--r-- 8.8 KB
COPYING -rw-r--r-- 18.3 KB
CREDITS -rw-r--r-- 96.2 KB
Kbuild -rw-r--r-- 2.2 KB
Kconfig -rw-r--r-- 287 bytes
MAINTAINERS -rw-r--r-- 425.9 KB
Makefile -rw-r--r-- 58.3 KB
README -rw-r--r-- 722 bytes

README

back to top