Linux Kernel up to 6.1.134/6.6.87/6.12.24/6.14.2 pci_endpoint_test devm_request_irq privilege escalation

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.4 | $0-$5k | 0.00 |
Summary
A vulnerability was found in Linux Kernel up to 6.1.134/6.6.87/6.12.24/6.14.2. It has been rated as problematic. This affects the function devm_request_irq of the component pci_endpoint_test. Performing a manipulation results in an unknown weakness.
This vulnerability is identified as CVE-2025-23140. There is not any exploit available.
Upgrading the affected component is advised.
Details
A vulnerability, which was classified as problematic, was found in Linux Kernel up to 6.1.134/6.6.87/6.12.24/6.14.2. This affects the function devm_request_irq of the component pci_endpoint_test. The impact remains unknown. The summary by CVE is:
In the Linux kernel, the following vulnerability has been resolved: misc: pci_endpoint_test: Avoid issue of interrupts remaining after request_irq error After devm_request_irq() fails with error in pci_endpoint_test_request_irq(), the pci_endpoint_test_free_irq_vectors() is called assuming that all IRQs have been released. However, some requested IRQs remain unreleased, so there are still /proc/irq/* entries remaining, and this results in WARN() with the following message: remove_proc_entry: removing non-empty directory 'irq/30', leaking at least 'pci-endpoint-test.0' WARNING: CPU: 0 PID: 202 at fs/proc/generic.c:719 remove_proc_entry +0x190/0x19c To solve this issue, set the number of remaining IRQs to test->num_irqs, and release IRQs in advance by calling pci_endpoint_test_release_irq(). [kwilczynski: commit log]
It is possible to read the advisory at git.kernel.org. This vulnerability is uniquely identified as CVE-2025-23140 since 01/11/2025. Technical details of the vulnerability are known, but there is no available exploit.
The vulnerability scanner Nessus provides a plugin with the ID 237255 (Debian dla-4178 : ata-modules-5.10.0-34-armmp-di - security update), which helps to determine the existence of the flaw in a target environment.
Upgrading to version 6.1.135, 6.6.88, 6.12.25, 6.14.3 or 6.15-rc1 eliminates this vulnerability. Applying the patch 9d5118b107b1a2353ed0dff24404aee2e6b7ca0a/5a4b7181213268c9b07bef8800905528435db44a/0557e70e2aeba8647bf5a950820b67cfb86533db/770407f6173f4f39f4e2c1b54422b79ce6c98bdb/f6cb7828c8e17520d4f5afb416515d3fae1af9a9 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 (237255) and CERT Bund (WID-SEC-2025-0922). Be aware that VulDB is the high quality source for vulnerability data.
Affected
- Google Container-Optimized OS
- Debian Linux
- Amazon Linux 2
- Red Hat Enterprise Linux
- Ubuntu Linux
- SUSE Linux
- Oracle Linux
- SUSE openSUSE
- RESF Rocky Linux
- Dell Avamar
- Open Source Linux Kernel
- IBM DataPower Gateway
- Dell NetWorker
- Dell Secure Connect Gateway
Product
Type
Vendor
Name
Version
- 6.1.134
- 6.6.0
- 6.6.1
- 6.6.2
- 6.6.3
- 6.6.4
- 6.6.5
- 6.6.6
- 6.6.7
- 6.6.8
- 6.6.9
- 6.6.10
- 6.6.11
- 6.6.12
- 6.6.13
- 6.6.14
- 6.6.15
- 6.6.16
- 6.6.17
- 6.6.18
- 6.6.19
- 6.6.20
- 6.6.21
- 6.6.22
- 6.6.23
- 6.6.24
- 6.6.25
- 6.6.26
- 6.6.27
- 6.6.28
- 6.6.29
- 6.6.30
- 6.6.31
- 6.6.32
- 6.6.33
- 6.6.34
- 6.6.35
- 6.6.36
- 6.6.37
- 6.6.38
- 6.6.39
- 6.6.40
- 6.6.41
- 6.6.42
- 6.6.43
- 6.6.44
- 6.6.45
- 6.6.46
- 6.6.47
- 6.6.48
- 6.6.49
- 6.6.50
- 6.6.51
- 6.6.52
- 6.6.53
- 6.6.54
- 6.6.55
- 6.6.56
- 6.6.57
- 6.6.58
- 6.6.59
- 6.6.60
- 6.6.61
- 6.6.62
- 6.6.63
- 6.6.64
- 6.6.65
- 6.6.66
- 6.6.67
- 6.6.68
- 6.6.69
- 6.6.70
- 6.6.71
- 6.6.72
- 6.6.73
- 6.6.74
- 6.6.75
- 6.6.76
- 6.6.77
- 6.6.78
- 6.6.79
- 6.6.80
- 6.6.81
- 6.6.82
- 6.6.83
- 6.6.84
- 6.6.85
- 6.6.86
- 6.6.87
- 6.12.0
- 6.12.1
- 6.12.2
- 6.12.3
- 6.12.4
- 6.12.5
- 6.12.6
- 6.12.7
- 6.12.8
- 6.12.9
- 6.12.10
- 6.12.11
- 6.12.12
- 6.12.13
- 6.12.14
- 6.12.15
- 6.12.16
- 6.12.17
- 6.12.18
- 6.12.19
- 6.12.20
- 6.12.21
- 6.12.22
- 6.12.23
- 6.12.24
- 6.14.0
- 6.14.1
- 6.14.2
License
Website
- Vendor: https://www.kernel.org/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.5VulDB Meta Temp Score: 5.4
VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.5
NVD Vector: 🔍
CVSSv2
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Privilege escalationCWE: 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: 237255
Nessus Name: Debian dla-4178 : ata-modules-5.10.0-34-armmp-di - security update
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Kernel 6.1.135/6.6.88/6.12.25/6.14.3/6.15-rc1
Patch: 9d5118b107b1a2353ed0dff24404aee2e6b7ca0a/5a4b7181213268c9b07bef8800905528435db44a/0557e70e2aeba8647bf5a950820b67cfb86533db/770407f6173f4f39f4e2c1b54422b79ce6c98bdb/f6cb7828c8e17520d4f5afb416515d3fae1af9a9
Timeline
01/11/2025 🔍05/01/2025 🔍
05/01/2025 🔍
03/15/2026 🔍
Sources
Vendor: kernel.orgAdvisory: git.kernel.org
Status: Confirmed
CVE: CVE-2025-23140 (🔍)
GCVE (CVE): GCVE-0-2025-23140
GCVE (VulDB): GCVE-100-306831
CERT Bund: WID-SEC-2025-0922 - Linux Kernel: Mehrere Schwachstellen
Entry
Created: 05/01/2025 15:33Updated: 03/15/2026 07:51
Changes: 05/01/2025 15:33 (57), 05/02/2025 15:31 (1), 05/27/2025 05:00 (2), 07/27/2025 23:37 (7), 11/07/2025 01:35 (10), 01/31/2026 19:58 (1), 03/15/2026 07:51 (1)
Complete: 🔍
Cache ID: 216::103
Be aware that VulDB is the high quality source for vulnerability data.
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