CVE-2022-49133

drm/amdkfd: svm range restore work deadlock when process exit

Severity Score

"-"

*CVSS v-

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

MITRE

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: svm range restore work deadlock when process exit kfd_process_notifier_release flush svm_range_restore_work
which calls svm_range_list_lock_and_flush_work to flush deferred_list
work, but if deferred_list work mmput release the last user, it will
call exit_mmap -> notifier_release, it is deadlock with below backtrace. Move flush svm_range_restore_work to kfd_process_wq_release to avoid
deadlock. Then svm_range_restore_work take task->mm ref to avoid mm is
gone while validating and mapping ranges to GPU. Workqueue: events svm_range_deferred_list_work [amdgpu]
Call Trace: wait_for_completion+0x94/0x100 __flush_work+0x12a/0x1e0 __cancel_work_timer+0x10e/0x190 cancel_delayed_work_sync+0x13/0x20 kfd_process_notifier_release+0x98/0x2a0 [amdgpu] __mmu_notifier_release+0x74/0x1f0 exit_mmap+0x170/0x200 mmput+0x5d/0x130 svm_range_deferred_list_work+0x104/0x230 [amdgpu] process_one_work+0x220/0x3c0

*Credits: N/A

CVSS Scores

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2025-02-26 CVE Reserved
2025-02-26 CVE Published
2025-03-30 EPSS Updated
2025-04-01 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (4)

URL	Tag	Source
https://git.kernel.org/stable/c/42de677f79999791bee4e21be318c32d90ab62c6	Vuln. Introduced

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/a6be83086e91891081e0589e4b4645bf4643e897	2022-04-13
https://git.kernel.org/stable/c/858822905f4bf44100d63c5e22e263109976f7cb	2022-04-13
https://git.kernel.org/stable/c/6225bb3a88d22594aacea2485dc28ca12d596721	2022-01-27

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.14 < 5.16.20 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.14 < 5.16.20"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.14 < 5.17.3 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.14 < 5.17.3"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.14 < 5.18 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.14 < 5.18"		en		Affected