Linux Kernel up to 6.12.93/6.18.35/7.0.12 mmc null pointer dereference

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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.12.93/6.18.35/7.0.12. It has been rated as critical. This vulnerability affects unknown code of the component mmc. Performing a manipulation results in null pointer dereference. This vulnerability is known as CVE-2026-53152. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.12.93/6.18.35/7.0.12. It has been classified as critical. This affects an unknown function of the component mmc. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: mmc: dw_mmc-rockchip: Add missing private data for very old controllers The really old controllers (rk2928, rk3066, rk3188) do not support UHS speeds at all, and thus never handled phase data. For that reason it never had a parse_dt callback and no driver private data at all. Commit ff6f0286c896 ("mmc: dw_mmc-rockchip: Add memory clock auto-gating support") makes the private data sort of mandatory, because the init function checks whether phases are configured internally or through the clock controller. This results in the old SoCs then experiencing NULL-pointer dereferences when they try to access that private-data struct. While we could have if (priv) conditionals in all places, it's way less cluttery to just give the old types their private-data struct.

It is possible to read the advisory at git.kernel.org. This vulnerability is uniquely identified as CVE-2026-53152 since 06/09/2026. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 323585 (Linux Distros Unpatched Vulnerability : CVE-2026-53152), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.12.94, 6.18.36 or 7.0.13 eliminates this vulnerability. Applying the patch b1180ff50cca48807893ecde7d1f81d573c88c85/7f8007be13e6cc1e0a508fe461f9a91ba9a28b8c/8d9eca906e76d3dd40e5f2c79701f066678f2e62/1e9a4850afa0ceb63984fb1a9f3e86d0fc4fd18f 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 (323585) and CERT Bund (WID-SEC-2026-2077). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Open Source Linux Kernel

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
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: 323585
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-53152

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.12.94/6.18.36/7.0.13
Patch: b1180ff50cca48807893ecde7d1f81d573c88c85/7f8007be13e6cc1e0a508fe461f9a91ba9a28b8c/8d9eca906e76d3dd40e5f2c79701f066678f2e62/1e9a4850afa0ceb63984fb1a9f3e86d0fc4fd18f

Timelineinfo

06/09/2026 CVE reserved
06/25/2026 +16 days Advisory disclosed
06/25/2026 +0 days VulDB entry created
07/08/2026 +13 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-53152 (🔒)
GCVE (CVE): GCVE-0-2026-53152
GCVE (VulDB): GCVE-100-373695
CERT Bund: WID-SEC-2026-2077 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 06/25/2026 11:49
Updated: 07/08/2026 10:10
Changes: 06/25/2026 11:49 (58), 06/27/2026 11:35 (5), 06/28/2026 21:20 (1), 06/28/2026 23:18 (7), 06/29/2026 04:01 (2), 07/08/2026 10:10 (10)
Complete: 🔍
Cache ID: 216::103

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