Linux Kernel up to 5.19.16/6.0.2 dma_resv_iter_next privilege escalation

CVSS Meta Temp Score
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CTI Interest Score
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4.9$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 5.19.16/6.0.2 and classified as critical. This affects the function dma_resv_iter_next. Executing a manipulation can lead to an unknown weakness. This vulnerability is tracked as CVE-2022-50393. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 5.19.16/6.0.2 and classified as critical. The impact remains unknown. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: SDMA update use unlocked iterator SDMA update page table may be called from unlocked context, this generate below warning. Use unlocked iterator to handle this case. WARNING: CPU: 0 PID: 1475 at drivers/dma-buf/dma-resv.c:483 dma_resv_iter_next Call Trace: dma_resv_iter_first+0x43/0xa0 amdgpu_vm_sdma_update+0x69/0x2d0 [amdgpu] amdgpu_vm_ptes_update+0x29c/0x870 [amdgpu] amdgpu_vm_update_range+0x2f6/0x6c0 [amdgpu] svm_range_unmap_from_gpus+0x115/0x300 [amdgpu] svm_range_cpu_invalidate_pagetables+0x510/0x5e0 [amdgpu] __mmu_notifier_invalidate_range_start+0x1d3/0x230 unmap_vmas+0x140/0x150 unmap_region+0xa8/0x110

The advisory is shared for download at git.kernel.org. This vulnerability was named CVE-2022-50393 since 09/17/2025. The exploitation appears to be difficult. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 265576 (Linux Distros Unpatched Vulnerability : CVE-2022-50393), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.19.17 or 6.0.3 eliminates this vulnerability. Applying the patch b892c57a3a04c8de247ab9ee08a0a8cf53290e19/4ff3d517cebe8a29b9f3c302b5292bb1ce291e00/3913f0179ba366f7d7d160c506ce00de1602bbc4 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (265576) and CERT Bund (WID-SEC-2025-2092). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • RESF Rocky Linux
  • Open Source Linux Kernel
  • Dell Secure Connect Gateway
  • IBM QRadar SIEM

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 4.9

VulDB Base Score: 4.6
VulDB Temp Score: 4.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Privilege escalation
CWE: Unknown
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 265576
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2022-50393

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.19.17/6.0.3
Patch: b892c57a3a04c8de247ab9ee08a0a8cf53290e19/4ff3d517cebe8a29b9f3c302b5292bb1ce291e00/3913f0179ba366f7d7d160c506ce00de1602bbc4

Timelineinfo

09/17/2025 CVE reserved
09/18/2025 +1 days Advisory disclosed
09/18/2025 +0 days VulDB entry created
12/13/2025 +86 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-50393 (🔒)
GCVE (CVE): GCVE-0-2022-50393
GCVE (VulDB): GCVE-100-324832
CERT Bund: WID-SEC-2025-2092 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 09/18/2025 16:17
Updated: 12/13/2025 02:33
Changes: 09/18/2025 16:17 (57), 09/19/2025 18:57 (7), 09/20/2025 21:53 (2), 11/29/2025 13:52 (1), 12/13/2025 02:33 (11)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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