CVE-2023-53852 - Vulnerability Details

- nvme-core: fix memory leak in dhchap_secret_store

Description

In the Linux kernel, the following vulnerability has been resolved:

nvme-core: fix memory leak in dhchap_secret_store

Free dhchap_secret in nvme_ctrl_dhchap_secret_store() before we return
fix following kmemleack:-

unreferenced object 0xffff8886376ea800 (size 64):
comm "check", pid 22048, jiffies 4344316705 (age 92.199s)
hex dump (first 32 bytes):
44 48 48 43 2d 31 3a 30 30 3a 6e 78 72 35 4b 67 DHHC-1:00:nxr5Kg
75 58 34 75 6f 41 78 73 4a 61 34 63 2f 68 75 4c uX4uoAxsJa4c/huL
backtrace:
[<0000000030ce5d4b>] __kmalloc+0x4b/0x130
[<000000009be1cdc1>] nvme_ctrl_dhchap_secret_store+0x8f/0x160 [nvme_core]
[<00000000ac06c96a>] kernfs_fop_write_iter+0x12b/0x1c0
[<00000000437e7ced>] vfs_write+0x2ba/0x3c0
[<00000000f9491baf>] ksys_write+0x5f/0xe0
[<000000001c46513d>] do_syscall_64+0x3b/0x90
[<00000000ecf348fe>] entry_SYSCALL_64_after_hwframe+0x72/0xdc
unreferenced object 0xffff8886376eaf00 (size 64):
comm "check", pid 22048, jiffies 4344316736 (age 92.168s)
hex dump (first 32 bytes):
44 48 48 43 2d 31 3a 30 30 3a 6e 78 72 35 4b 67 DHHC-1:00:nxr5Kg
75 58 34 75 6f 41 78 73 4a 61 34 63 2f 68 75 4c uX4uoAxsJa4c/huL
backtrace:
[<0000000030ce5d4b>] __kmalloc+0x4b/0x130
[<000000009be1cdc1>] nvme_ctrl_dhchap_secret_store+0x8f/0x160 [nvme_core]
[<00000000ac06c96a>] kernfs_fop_write_iter+0x12b/0x1c0
[<00000000437e7ced>] vfs_write+0x2ba/0x3c0
[<00000000f9491baf>] ksys_write+0x5f/0xe0
[<000000001c46513d>] do_syscall_64+0x3b/0x90
[<00000000ecf348fe>] entry_SYSCALL_64_after_hwframe+0x72/0xdc

Published: 2025-12-09

Score: 5.5 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

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
`f50fff73d620cd6e8f48bc58d4f1c944615a3fea`	affected	< 2e9b141307554521d60fecf6bf1d2edc8dd0181d
`f50fff73d620cd6e8f48bc58d4f1c944615a3fea`	affected	< c41ac086d2abaf7527a5685f9c0a1c209ab7e0aa
`f50fff73d620cd6e8f48bc58d4f1c944615a3fea`	affected	< 6a5eda5017959541ab82c5d56bcf784b8294e298
`f50fff73d620cd6e8f48bc58d4f1c944615a3fea`	affected	< a836ca33c5b07d34dd5347af9f64d25651d12674

Linux

affected

Version	Status	Constraints
`6.0`	affected	—
`0`	unaffected	< 6.0
`6.1.39`	unaffected	≤ 6.1.*
`6.3.13`	unaffected	≤ 6.3.*
`6.4.4`	unaffected	≤ 6.4.*
`6.5`	unaffected	≤ *

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

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 0.00021.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://git.kernel.org/stable/c/2e9b141307554521d60fecf6bf1d2edc8dd0181d
https://git.kernel.org/stable/c/6a5eda5017959541ab82c5d56bcf784b8294e298
https://git.kernel.org/stable/c/a836ca33c5b07d34dd5347af9f64d25651d12674
https://git.kernel.org/stable/c/c41ac086d2abaf7527a5685f9c0a1c209ab7e0aa
https://lore.kernel.org/linux-cve-announce/2025120901-CVE-2023-53852-69a1@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2023-53852
https://www.cve.org/CVERecord?id=CVE-2023-53852

History

Wed, 10 Dec 2025 00:15:00 +0000

Type	Values Removed	Values Added
References		https://lore.kernel.org/linux-cve-announce/2025120901-CVE-2023-53852-69a1@gregkh/T https://nvd.nist.gov/vuln/detail/CVE-2023-53852 https://www.cve.org/CVERecord?id=CVE-2023-53852
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`

Tue, 09 Dec 2025 02:00:00 +0000

Type	Values Removed	Values Added
Description		In the Linux kernel, the following vulnerability has been resolved: nvme-core: fix memory leak in dhchap_secret_store Free dhchap_secret in nvme_ctrl_dhchap_secret_store() before we return fix following kmemleack:- unreferenced object 0xffff8886376ea800 (size 64): comm "check", pid 22048, jiffies 4344316705 (age 92.199s) hex dump (first 32 bytes): 44 48 48 43 2d 31 3a 30 30 3a 6e 78 72 35 4b 67 DHHC-1:00:nxr5Kg 75 58 34 75 6f 41 78 73 4a 61 34 63 2f 68 75 4c uX4uoAxsJa4c/huL backtrace: [<0000000030ce5d4b>] __kmalloc+0x4b/0x130 [<000000009be1cdc1>] nvme_ctrl_dhchap_secret_store+0x8f/0x160 [nvme_core] [<00000000ac06c96a>] kernfs_fop_write_iter+0x12b/0x1c0 [<00000000437e7ced>] vfs_write+0x2ba/0x3c0 [<00000000f9491baf>] ksys_write+0x5f/0xe0 [<000000001c46513d>] do_syscall_64+0x3b/0x90 [<00000000ecf348fe>] entry_SYSCALL_64_after_hwframe+0x72/0xdc unreferenced object 0xffff8886376eaf00 (size 64): comm "check", pid 22048, jiffies 4344316736 (age 92.168s) hex dump (first 32 bytes): 44 48 48 43 2d 31 3a 30 30 3a 6e 78 72 35 4b 67 DHHC-1:00:nxr5Kg 75 58 34 75 6f 41 78 73 4a 61 34 63 2f 68 75 4c uX4uoAxsJa4c/huL backtrace: [<0000000030ce5d4b>] __kmalloc+0x4b/0x130 [<000000009be1cdc1>] nvme_ctrl_dhchap_secret_store+0x8f/0x160 [nvme_core] [<00000000ac06c96a>] kernfs_fop_write_iter+0x12b/0x1c0 [<00000000437e7ced>] vfs_write+0x2ba/0x3c0 [<00000000f9491baf>] ksys_write+0x5f/0xe0 [<000000001c46513d>] do_syscall_64+0x3b/0x90 [<00000000ecf348fe>] entry_SYSCALL_64_after_hwframe+0x72/0xdc
Title		nvme-core: fix memory leak in dhchap_secret_store
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/2e9b141307554521d60fecf6bf1d2edc8dd0181d https://git.kernel.org/stable/c/6a5eda5017959541ab82c5d56bcf784b8294e298 https://git.kernel.org/stable/c/a836ca33c5b07d34dd5347af9f64d25651d12674 https://git.kernel.org/stable/c/c41ac086d2abaf7527a5685f9c0a1c209ab7e0aa

Subscriptions

Linux Linux Kernel

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-12-09T01:30:17.449Z

Updated: 2026-05-11T19:52:45.826Z

Reserved: 2025-12-09T01:27:17.827Z

Link: CVE-2023-53852

Vulnrichment

No data.

NVD

Status : Deferred

Published: 2025-12-09T16:17:25.797

Modified: 2026-04-15T00:35:42.020

Link: CVE-2023-53852

Redhat

Severity : Low

Publid Date: 2025-12-09T00:00:00Z

Links: CVE-2023-53852 - Bugzilla

OpenCVE Enrichment

No data.

Weaknesses

No weakness.

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

JSON object

JSON object

JSON object

JSON object

JSON object