| ID |
CVE-2022-26356
|
| Sažetak |
Racy interactions between dirty vram tracking and paging log dirty hypercalls Activation of log dirty mode done by XEN_DMOP_track_dirty_vram (was named HVMOP_track_dirty_vram before Xen 4.9) is racy with ongoing log dirty hypercalls. A suitably timed call to XEN_DMOP_track_dirty_vram can enable log dirty while another CPU is still in the process of tearing down the structures related to a previously enabled log dirty mode (XEN_DOMCTL_SHADOW_OP_OFF). This is due to lack of mutually exclusive locking between both operations and can lead to entries being added in already freed slots, resulting in a memory leak. |
| Reference |
|
| CVSS |
| Base: | 4.0 |
| Impact: | 6.9 |
| Exploitability: | 1.9 |
|
| Pristup |
| Vektor | Složenost | Autentikacija |
| LOCAL |
HIGH |
NONE |
|
| Impact |
| Povjerljivost | Cjelovitost | Dostupnost |
| NONE |
NONE |
COMPLETE |
|
| CVSS vektor |
AV:L/AC:H/Au:N/C:N/I:N/A:C |
| Zadnje važnije ažuriranje |
04-02-2024 - 08:15 |
| Objavljeno |
05-04-2022 - 13:15 |
