Linux Kernel up to 6.6.139/6.12.85/6.18.26/7.0.3 scsi put_disk privilege escalation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Linux Kernel up to 6.6.139/6.12.85/6.18.26/7.0.3. This vulnerability affects the function put_disk of the component scsi. Such manipulation leads to an unknown weakness. This vulnerability is listed as CVE-2026-45997. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 6.6.139/6.12.85/6.18.26/7.0.3. Affected by this issue is the function put_disk of the component scsi. The impact remains unknown. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: scsi: sd: fix missing put_disk() when device_add(&disk_dev) fails If device_add(&sdkp->disk_dev) fails, put_device() runs scsi_disk_release(), which frees the scsi_disk but leaves the gendisk referenced. The device_add_disk() error path in sd_probe() calls put_disk(gd); call put_disk(gd) here to mirror that cleanup.

The advisory is shared for download at git.kernel.org. This vulnerability is handled as CVE-2026-45997 since 05/13/2026. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 06/24/2026).

The vulnerability scanner Nessus provides a plugin with the ID 322088 (Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2026-1882)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.6.140, 6.12.86, 6.18.27, 7.0.4 or 7.1-rc1 eliminates this vulnerability. Applying the patch 262152ec37101f9dc524743ccdbd6c7641d14573/b64b4f499801b12d0e2785447e4df6c164c608a9/13e550fbfccdb311e76ec96892dfe35f0dba0657/a95d38c5701431bfc826e7b18acc0785919d5c88/1e111c4b3a726df1254670a5cc4868cedb946d37 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 vulnerability database at Tenable (322088). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB 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: 🔒

CVSSv2info

AVACAuCIA
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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: 322088
Nessus Name: Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2026-1882)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.6.140/6.12.86/6.18.27/7.0.4/7.1-rc1
Patch: 262152ec37101f9dc524743ccdbd6c7641d14573/b64b4f499801b12d0e2785447e4df6c164c608a9/13e550fbfccdb311e76ec96892dfe35f0dba0657/a95d38c5701431bfc826e7b18acc0785919d5c88/1e111c4b3a726df1254670a5cc4868cedb946d37

Timelineinfo

05/13/2026 CVE reserved
05/27/2026 +14 days Advisory disclosed
05/27/2026 +0 days VulDB entry created
06/24/2026 +28 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-45997 (🔒)
GCVE (CVE): GCVE-0-2026-45997
GCVE (VulDB): GCVE-100-366248

Entryinfo

Created: 05/27/2026 17:21
Updated: 06/24/2026 22:50
Changes: 05/27/2026 17:21 (58), 06/16/2026 18:07 (10), 06/24/2026 22:50 (2)
Complete: 🔍
Cache ID: 216::103

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