AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

vfio-pci/zdev: fix possible segmentation fault issue

Browse Source 
[ Upstream commit 7e31d6dc2c78b2a0ba0039ca97ca98a581e8db82 ]

In case allocation fails, we must behave correctly and exit with error.

Fixes: e6b817d4b8 ("vfio-pci/zdev: Add zPCI capabilities to VFIO_DEVICE_GET_INFO")
Signed-off-by: Max Gurtovoy <mgurtovoy@nvidia.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Max Gurtovoy 2021-02-01 16:28:25 +00:00 committed by Greg Kroah-Hartman
parent c0e73c1d6d
commit 9eb145398e
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/vfio/pci/vfio_pci_zdev.c
View File

@ -74,6 +74,8 @@ static int zpci_util_cap(struct zpci_dev *zdev, struct vfio_pci_device *vdev,
int ret;
cap = kmalloc(cap_size, GFP_KERNEL);
if (!cap)
return -ENOMEM;
cap->header.id = VFIO_DEVICE_INFO_CAP_ZPCI_UTIL;
cap->header.version = 1;
@ -98,6 +100,8 @@ static int zpci_pfip_cap(struct zpci_dev *zdev, struct vfio_pci_device *vdev,
int ret;
cap = kmalloc(cap_size, GFP_KERNEL);
if (!cap)
return -ENOMEM;
cap->header.id = VFIO_DEVICE_INFO_CAP_ZPCI_PFIP;
cap->header.version = 1;