Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
None
Privileges Required
Low
Attack Vector
Local
0

CVE-2022-48990

Disclosure Date: October 21, 2024
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

In the Linux kernel, the following vulnerability has been resolved:

drm/amdgpu: fix use-after-free during gpu recovery

[Why]

[  754.862560] refcount_t: underflow; use-after-free.
[  754.862898] Call Trace:
[  754.862903]  <TASK>
[  754.862913]  amdgpu_job_free_cb+0xc2/0xe1 [amdgpu]
[  754.863543]  drm_sched_main.cold+0x34/0x39 [amd_sched]

[How]

The fw_fence may be not init, check whether dma_fence_init
is performed before job free

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CVSS V3 Severity and Metrics
Base Score:
7.8 High
Impact Score:
5.9
Exploitability Score:
1.8
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High

General Information

Vendors

  • linux

Products

  • linux kernel,
  • linux kernel 6.1

Additional Info

Technical Analysis