CVE-2020-10690
Medium
Description
There is a use-after-free in kernel versions before 5.5 due to a race condition between the release of ptp_clock and cdev while resource deallocation. When a (high privileged) process allocates a ptp device file (like /dev/ptpX) and voluntarily goes to sleep. During this time if the underlying device is removed, it can cause an exploitable condition as the process wakes up to terminate and clean all attached files. The system crashes due to the cdev structure being invalid (as already freed) which is pointed to by the inode.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Linux Kernel
PublishedMay 8, 2020
First seenMay 8, 2020
Weakness typeCWE-416Use after free
How to fix
Update
- linux linux_kernel5.5 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v < 5.5 | 5.5 |
| redhat enterprise_linux | 7.0, 8.0 | — |
| debian debian_linux | 8.0 | — |
| canonical ubuntu_linux | 14.04, 16.04 | — |
| opensuse leap | 15.1 | — |
| netapp active_iq_unified_manager | No range specified | — |
| netapp element_software | No range specified | — |
| netapp hci_management_node | No range specified | — |
| netapp solidfire | No range specified | — |
| netapp steelstore_cloud_integrated_storage | No range specified | — |
| netapp hci_compute_node | No range specified | — |
| netapp h300s_firmware | No range specified | — |
| netapp h500s_firmware | No range specified | — |
| netapp h700s_firmware | No range specified | — |
| netapp h300e_firmware | No range specified | — |
| netapp h500e_firmware | No range specified | — |
| netapp h700e_firmware | No range specified | — |
| netapp h410s_firmware | No range specified | — |
| netapp h410c_firmware | No range specified | — |
| netapp h610c_firmware | No range specified | — |
| netapp h610s_firmware | No range specified | — |
| netapp h615c_firmware | No range specified | — |
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