High · published June 29, 2021
Guest triggered use-after-free in Linux xen-netback A malicious or buggy network PV frontend can force Linux netback to disable the interface and terminate the receive kernel thread associated with queue 0 in response to the frontend sending a malformed packet. Such kernel thread termination will lead to a use-after-free in Linux netback when the backend is destroyed, as the kernel thread associated with queue 0 will have already exited and thus the call to kthread_stop will be performed against a stale pointer.
| Product | Versions | Fixed in |
|---|---|---|
| netapp/solidfire_baseboard_management_controller | all versions | — |
| linux/linux_kernel | ≥ 5.5.0, < 5.10.43 | 5.10.43 |
| netapp/cloud_backup | all versions | — |
| netapp/h410c_firmware | all versions | — |
| netapp/h300s_firmware | all versions | — |
| netapp/h500s_firmware | all versions | — |
| netapp/h700s_firmware | all versions | — |
| netapp/h300e_firmware | all versions | — |
| netapp/h500e_firmware | all versions | — |
| netapp/h700e_firmware | all versions | — |
| netapp/h410s_firmware | all versions | — |