CVE-2026-45997 - Vulnerability Details

- scsi: sd: fix missing put_disk() when device_add(&disk_dev) fails

Description

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.

Published: 2026-05-27

Score: 5.5 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Impact

The Linux kernel’s SCSI disk driver contains a flaw where a missing put_disk() call leaves a gendisk reference after device_add(&disk_dev) fails. This resource management error can cause memory or resource leaks, and repeated failures could lead to system instability or a denial of service. The weakness is classified as CWE-772: Resource Management Errors.

Affected Systems

All versions of the Linux kernel prior to the commit correcting the missing put_disk() call are impacted. The affected product is the Linux kernel as a whole, and the vendors listed are Linux: Linux.

Risk and Exploitability

The flaw is triggered during the kernel's handling of SCSI device addition, which normally occurs with elevated privileges. An attacker would need to force device_add(&disk_dev) to fail, for example by introducing a malfunctioning SCSI device. As the vulnerability is not in the CISA KEV catalog, the public exploitation likelihood is unclear, but the CVSS score of 5.5 indicates a moderate severity. Local privileged attackers could repeatedly induce the error path to consume resources or destabilize the system.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Linux

unaffected

Version	Status	Constraints
`265dfe8ebbabae7959060bd1c3f75c2473b697ed`	affected	< 2c2c14b7dfccad8c5a28802849e40c21252e4c28
`265dfe8ebbabae7959060bd1c3f75c2473b697ed`	affected	< 262152ec37101f9dc524743ccdbd6c7641d14573
`265dfe8ebbabae7959060bd1c3f75c2473b697ed`	affected	< b64b4f499801b12d0e2785447e4df6c164c608a9
`265dfe8ebbabae7959060bd1c3f75c2473b697ed`	affected	< 13e550fbfccdb311e76ec96892dfe35f0dba0657
`265dfe8ebbabae7959060bd1c3f75c2473b697ed`	affected	< a95d38c5701431bfc826e7b18acc0785919d5c88
`265dfe8ebbabae7959060bd1c3f75c2473b697ed`	affected	< 1e111c4b3a726df1254670a5cc4868cedb946d37
`d56459d361a9a99bead8b594635353053271356c`	affected	—
`a3e5a9208466b63f27a2509a691023b446ea5105`	affected	—
`4e8e6427319de323f613caa8fd37120df83138d0`	affected	—
`eadb60bcc2005247d97dcb3becee57aba4024ff4`	affected	—
`350d048cc506368a316f0bc4082426b24a2a9fc0`	affected	—
`60df9f55562a57173a11b6c7011eee40dfa48157`	affected	—
`e95f62013a1159eeea752bb52df0683ee77f70ca`	affected	—
`4.4.288`	affected	< 4.5
`4.9.286`	affected	< 4.10
`4.14.250`	affected	< 4.15
`4.19.210`	affected	< 4.20
`5.4.152`	affected	< 5.5
`5.10.72`	affected	< 5.11
`5.14.11`	affected	< 5.15

Linux

affected

Version	Status	Constraints
`5.15`	affected	—
`0`	unaffected	< 5.15
`6.1.175`	unaffected	≤ 6.1.*
`6.6.140`	unaffected	≤ 6.6.*
`6.12.86`	unaffected	≤ 6.12.*
`6.18.27`	unaffected	≤ 6.18.*
`7.0.4`	unaffected	≤ 7.0.*
`7.1`	unaffected	≤ *

Configuration 1 [-]

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:5.15:-::::::
	cpe:2.3:o:linux:linux_kernel:5.15:rc3::::::
	cpe:2.3:o:linux:linux_kernel:5.15:rc4::::::
	cpe:2.3:o:linux:linux_kernel:5.15:rc5::::::
	cpe:2.3:o:linux:linux_kernel:5.15:rc6::::::
	cpe:2.3:o:linux:linux_kernel:5.15:rc7::::::

No data.

Vendor Product Confidence Versions

Linux

Linux Kernel

99%

Version	Status	Scheme	Platform
`[265dfe8ebbabae7959060bd1c3f75c2473b697ed,262152ec37101f9dc524743ccdbd6c7641d14573)`	affected	code_commit	—
`[265dfe8ebbabae7959060bd1c3f75c2473b697ed,b64b4f499801b12d0e2785447e4df6c164c608a9)`	affected	code_commit	—
`[265dfe8ebbabae7959060bd1c3f75c2473b697ed,13e550fbfccdb311e76ec96892dfe35f0dba0657)`	affected	code_commit	—
`[265dfe8ebbabae7959060bd1c3f75c2473b697ed,a95d38c5701431bfc826e7b18acc0785919d5c88)`	affected	code_commit	—
`[265dfe8ebbabae7959060bd1c3f75c2473b697ed,1e111c4b3a726df1254670a5cc4868cedb946d37)`	affected	code_commit	—
`d56459d361a9a99bead8b594635353053271356c`	affected	code_commit	—
`a3e5a9208466b63f27a2509a691023b446ea5105`	affected	code_commit	—
`4e8e6427319de323f613caa8fd37120df83138d0`	affected	code_commit	—
`eadb60bcc2005247d97dcb3becee57aba4024ff4`	affected	code_commit	—
`350d048cc506368a316f0bc4082426b24a2a9fc0`	affected	code_commit	—
`60df9f55562a57173a11b6c7011eee40dfa48157`	affected	code_commit	—
`e95f62013a1159eeea752bb52df0683ee77f70ca`	affected	code_commit	—
`[4.4.288,4.5)`	affected	semver	—
`[4.9.286,4.10)`	affected	semver	—
`[4.14.250,4.15)`	affected	semver	—
`[4.19.210,4.20)`	affected	semver	—
`[5.4.152,5.5)`	affected	semver	—
`[5.10.72,5.11)`	affected	semver	—
`[5.14.11,5.15)`	affected	semver	—

Linux

Linux Kernel

99%

Version	Status	Scheme	Platform
`5.15`	affected	generic	—
`[0,5.15)`	unaffected	semver	—
`[6.6.140,6.6.*]`	unaffected	generic	—
`[6.12.86,6.12.*]`	unaffected	generic	—
`[6.18.27,6.18.*]`	unaffected	generic	—
`[7.0.4,7.0.*]`	unaffected	generic	—
`[7.1-rc1, *]`	unaffected	generic	—

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Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

Apply the kernel patch that adds the missing put_disk() call in the sd_probe() function.
Reboot the system or reload the kernel to ensure the patched driver takes effect.
If a kernel update cannot be performed immediately, limit the addition of new SCSI devices and disable auto‑probing for untrusted devices to reduce the risk of triggering the bug.

Generated by OpenCVE AI on May 28, 2026 at 03:49 UTC.

Tracking

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Advisories

No advisories yet.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00172.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://git.kernel.org/stable/c/13e550fbfccdb311e76ec96892dfe35f0dba0657
https://git.kernel.org/stable/c/1e111c4b3a726df1254670a5cc4868cedb946d37
https://git.kernel.org/stable/c/262152ec37101f9dc524743ccdbd6c7641d14573
https://git.kernel.org/stable/c/2c2c14b7dfccad8c5a28802849e40c21252e4c28
https://git.kernel.org/stable/c/a95d38c5701431bfc826e7b18acc0785919d5c88
https://git.kernel.org/stable/c/b64b4f499801b12d0e2785447e4df6c164c608a9
https://lore.kernel.org/linux-cve-announce/2026052741-CVE-2026-45997-1c32@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2026-45997
https://www.cve.org/CVERecord?id=CVE-2026-45997

History

Tue, 16 Jun 2026 13:45:00 +0000

Type	Values Removed	Values Added
Weaknesses		NVD-CWE-noinfo
CPEs		cpe:2.3:o:linux:linux_kernel:5.15:-:::::: cpe:2.3:o:linux:linux_kernel:5.15:rc3:::::: cpe:2.3:o:linux:linux_kernel:5.15:rc4:::::: cpe:2.3:o:linux:linux_kernel:5.15:rc5:::::: cpe:2.3:o:linux:linux_kernel:5.15:rc6:::::: cpe:2.3:o:linux:linux_kernel:5.15:rc7::::::

Mon, 01 Jun 2026 17:00:00 +0000

Type	Values Removed	Values Added
References		https://git.kernel.org/stable/c/2c2c14b7dfccad8c5a28802849e40c21252e4c28

Thu, 28 May 2026 00:15:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-772
References		https://lore.kernel.org/linux-cve-announce/2026052741-CVE-2026-45997-1c32@gregkh/T https://nvd.nist.gov/vuln/detail/CVE-2026-45997 https://www.cve.org/CVERecord?id=CVE-2026-45997
Metrics	threat_severity `None`	cvssV3_1 `{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}` threat_severity `Low`

Wed, 27 May 2026 14:15:00 +0000

Type	Values Removed	Values Added
Description		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.
Title		scsi: sd: fix missing put_disk() when device_add(&disk_dev) fails
First Time appeared		Linux Linux linux Kernel
CPEs		cpe:2.3:o:linux:linux_kernel::::::::
Vendors & Products		Linux Linux linux Kernel
References		https://git.kernel.org/stable/c/13e550fbfccdb311e76ec96892dfe35f0dba0657 https://git.kernel.org/stable/c/1e111c4b3a726df1254670a5cc4868cedb946d37 https://git.kernel.org/stable/c/262152ec37101f9dc524743ccdbd6c7641d14573 https://git.kernel.org/stable/c/a95d38c5701431bfc826e7b18acc0785919d5c88 https://git.kernel.org/stable/c/b64b4f499801b12d0e2785447e4df6c164c608a9

Subscriptions

Linux Linux Kernel

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2026-05-27T12:55:51.154Z

Updated: 2026-06-14T17:47:03.622Z

Reserved: 2026-05-13T15:03:33.091Z

Link: CVE-2026-45997

Vulnrichment

No data.

NVD

Status : Analyzed

Published: 2026-05-27T14:17:17.280

Modified: 2026-06-16T13:41:25.560

Link: CVE-2026-45997

Redhat

Severity : Low

Publid Date: 2026-05-27T00:00:00Z

Links: CVE-2026-45997 - Bugzilla

OpenCVE Enrichment

Updated: 2026-05-28T04:00:10Z

Weaknesses

CWE-772
Missing Release of Resource after Effective Lifetime
NVD-CWE-noinfo

Impact

Affected Systems

Risk and Exploitability

Tracking

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

Subscriptions

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