Linux Kernel up to 6.4.11 vm_dev use after free

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7.7	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.4.11. It has been classified as critical. This affects the function vm_dev. Performing a manipulation results in use after free. This vulnerability is known as CVE-2023-53515. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.4.11. It has been classified as critical. This affects the function vm_dev. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: virtio-mmio: don't break lifecycle of vm_dev vm_dev has a separate lifecycle because it has a 'struct device' embedded. Thus, having a release callback for it is correct. Allocating the vm_dev struct with devres totally breaks this protection, though. Instead of waiting for the vm_dev release callback, the memory is freed when the platform_device is removed. Resulting in a use-after-free when finally the callback is to be called. To easily see the problem, compile the kernel with CONFIG_DEBUG_KOBJECT_RELEASE and unbind with sysfs. The fix is easy, don't use devres in this case. Found during my research about object lifetime problems.

The advisory is shared at git.kernel.org. This vulnerability is uniquely identified as CVE-2023-53515 since 10/01/2025. The exploitability is told to be easy. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/27/2026).

The vulnerability scanner Nessus provides a plugin with the ID 278484 (EulerOS 2.0 SP13 : kernel (EulerOS-SA-2025-2501)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.19.293, 5.4.255, 5.10.192, 5.15.128, 6.1.47 or 6.4.12 eliminates this vulnerability. Applying the patch 97a2d55ead76358245b446efd87818e919196d7a/b788ad3b2468512339c05f23692e36860264e674/3ff54d904fafabd0912796785e53cce4e69ca123/5b7d5c2dd664eb8b9a06ecbc06e28d39359c422e/af5818c35173e096085c6ae2e3aac605d3d15e41/2dcb368fe5a8eee498ca75c93a18ce2f3b0d6a8e/55c91fedd03d7b9cf0c5199b2eb12b9b8e95281a 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 (278484), EUVD (EUVD-2025-32745) and CERT Bund (WID-SEC-2025-2187). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

• Amazon Linux 2
• Red Hat Enterprise Linux
• SUSE Linux
• Oracle Linux
• Open Source Linux Kernel
• Dell Secure Connect Gateway

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 4.19.292
• 5.4.254
• 5.10.191
• 5.15.127
• 6.1.0
• 6.1.1
• 6.1.2
• 6.1.3
• 6.1.4
• 6.1.5
• 6.1.6
• 6.1.7
• 6.1.8
• 6.1.9
• 6.1.10
• 6.1.11
• 6.1.12
• 6.1.13
• 6.1.14
• 6.1.15
• 6.1.16
• 6.1.17
• 6.1.18
• 6.1.19
• 6.1.20
• 6.1.21
• 6.1.22
• 6.1.23
• 6.1.24
• 6.1.25
• 6.1.26
• 6.1.27
• 6.1.28
• 6.1.29
• 6.1.30
• 6.1.31
• 6.1.32
• 6.1.33
• 6.1.34
• 6.1.35
• 6.1.36
• 6.1.37
• 6.1.38
• 6.1.39
• 6.1.40
• 6.1.41
• 6.1.42
• 6.1.43
• 6.1.44
• 6.1.45
• 6.1.46
• 6.4.0
• 6.4.1
• 6.4.2
• 6.4.3
• 6.4.4
• 6.4.5
• 6.4.6
• 6.4.7
• 6.4.8
• 6.4.9
• 6.4.10
• 6.4.11

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.9
VulDB Meta Temp Score: 7.7

VulDB Base Score: 8.0
VulDB Temp Score: 7.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 278484
Nessus Name: EulerOS 2.0 SP13 : kernel (EulerOS-SA-2025-2501)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 4.19.293/5.4.255/5.10.192/5.15.128/6.1.47/6.4.12
Patch: 97a2d55ead76358245b446efd87818e919196d7a/b788ad3b2468512339c05f23692e36860264e674/3ff54d904fafabd0912796785e53cce4e69ca123/5b7d5c2dd664eb8b9a06ecbc06e28d39359c422e/af5818c35173e096085c6ae2e3aac605d3d15e41/2dcb368fe5a8eee498ca75c93a18ce2f3b0d6a8e/55c91fedd03d7b9cf0c5199b2eb12b9b8e95281a

Timelineinfo

10/01/2025 Advisory disclosed
10/01/2025 +0 days CVE reserved
10/01/2025 +0 days VulDB entry created
01/27/2026 +118 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2023-53515 (🔒)
GCVE (CVE): GCVE-0-2023-53515
GCVE (VulDB): GCVE-100-326625
EUVD: 🔒
CERT Bund: WID-SEC-2025-2187 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 10/01/2025 15:23
Updated: 01/27/2026 16:38
Changes: 10/01/2025 15:23 (58), 11/29/2025 03:40 (7), 12/14/2025 06:33 (2), 01/27/2026 02:46 (11), 01/27/2026 16:38 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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