Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Linux Linux — drm/amdkfd: svm range restore work deadlock when process exit
AV AC PR UI S C I A CVSS EPSS %ile KEV
L L L N U N N H 5.5 .0026 18.2 —
AFFECTED
Product Versions Fixed
Linux 8a7c184a16d73ab25360e0f5997f82306ff5d5a2 – —
Linux 5.14 – 5.16.20
TIMELINE
Feb 26 Reserved by Linux
Feb 26 Published (CNA: Linux)
Aug 13 ENRICHED — CVE-2022-49133 (Linux). Received CVSS 5.5 and CPE data from NVD.
Description
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
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| February 26, 2025 | Reserved | Reserved by Linux |
| February 26, 2025 | Published | Published (CNA: Linux) |
| August 13, 2026 | ENRICHED | ENRICHED — CVE-2022-49133 (Linux). Received CVSS 5.5 and CPE data from NVD. |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Linux | Linux | — | 8a7c184a16d73ab25360e0f5997f82306ff5d5a2 | — |
| Linux | Linux | — | 5.14 | 5.16.20 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2022-49133 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.