CVE-2022-48990 Information

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] [ 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

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

https://git.kernel.org/stable/c/d2a89cd942edd50c1e652004fd64019be78b0a96 https://git.kernel.org/stable/c/3cb93f390453cde4d6afda1587aaa00e75e09617

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8