android_kernel_xiaomi_sm8350/drivers/s390
Tony Krowiak 5195de1d5f s390/vfio-ap: fix memory leak in vfio_ap device driver
[ Upstream commit 8f8cf767589f2131ae5d40f3758429095c701c84 ]

The device release callback function invoked to release the matrix device
uses the dev_get_drvdata(device *dev) function to retrieve the
pointer to the vfio_matrix_dev object in order to free its storage. The
problem is, this object is not stored as drvdata with the device; since the
kfree function will accept a NULL pointer, the memory for the
vfio_matrix_dev object is never freed.

Since the device being released is contained within the vfio_matrix_dev
object, the container_of macro will be used to retrieve its pointer.

Fixes: 1fde573413 ("s390: vfio-ap: base implementation of VFIO AP device driver")
Signed-off-by: Tony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Link: https://lore.kernel.org/r/20230320150447.34557-1-akrowiak@linux.ibm.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-05 11:16:44 +02:00
..
block s390/dasd: add missing discipline function 2023-03-17 08:32:54 +01:00
char s390/zcore: fix race when reading from hardware system area 2022-08-25 11:18:05 +02:00
cio
crypto s390/vfio-ap: fix memory leak in vfio_ap device driver 2023-04-05 11:16:44 +02:00
net s390/lcs: Fix return type of lcs_start_xmit() 2023-01-18 11:41:36 +01:00
scsi scsi: zfcp: Fix double free of FSF request when qdio send fails 2022-11-25 17:42:19 +01:00
virtio
Makefile