3.11.10.14 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx> commit 83ff42fcce070801a3aa1cd6a3269d7426271a8d upstream. This patch fixes a left-over se_lun->lun_sep pointer OOPs when one of the /sys/kernel/config/target/$FABRIC/$WWPN/$TPGT/lun/$LUN/alua* attributes is accessed after the $DEVICE symlink has been removed. To address this bug, go ahead and clear se_lun->lun_sep memory in core_dev_unexport(), so that the existing checks for show/store ALUA attributes in target_core_fabric_configfs.c work as expected. Reported-by: Sebastian Herbszt <herbszt@xxxxxx> Tested-by: Sebastian Herbszt <herbszt@xxxxxx> Signed-off-by: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx> Signed-off-by: Luis Henriques <luis.henriques@xxxxxxxxxxxxx> --- drivers/target/target_core_device.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c index 2640f2c65329..8a6b0e9f526a 100644 --- a/drivers/target/target_core_device.c +++ b/drivers/target/target_core_device.c @@ -614,6 +614,7 @@ void core_dev_unexport( dev->export_count--; spin_unlock(&hba->device_lock); + lun->lun_sep = NULL; lun->lun_se_dev = NULL; } -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html