CVE-2026-97502Hinoki check available

Kernel crash via unchecked MMC data pointer

Published Sep 24, 2026 · Updated Sep 24, 2026

NULL pointer dereference in the DaVinci MMC host driver in Linux allows attackers to crash the kernel via error-status interrupts. mmc_davinci_irq() reaches the TOUTRD and CRCWR/CRCRD branches when host->data is NULL, then writes error status through the null data pointer. The crash requires a DaVinci MMC interrupt whose qstatus contains a read-timeout or data-CRC bit while no data request is active.

CVSS severityUnavailable
Unscored
EPSS probability0.16%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

NULL pointer dereference in the DaVinci MMC host driver in Linux allows attackers to crash the kernel via error-status interrupts. mmc_davinci_irq() reaches the TOUTRD and CRCWR/CRCRD branches when host->data is NULL, then writes error status through the null data pointer. The crash requires a DaVinci MMC interrupt whose qstatus contains a read-timeout or data-CRC bit while no data request is active.

The record

CVE
CVE-2026-97502
Published
Sep 24, 2026
Updated
Sep 24, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <6.12.111
  2. Affected versionversion=0 <6.18.53
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <4f28846aaf8db9668e338b8987973f8935edff34
  4. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <5b7e151fe9ea9311ba601849aaecdc4fc97fd577
  5. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a01cedf230dc0fcd55b994f5e548d3982ba4c732

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=0 <6.12.111; version=0 <6.18.53; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <4f28846aaf8db9668e338b8987973f8935edff34; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <5b7e151fe9ea9311ba601849aaecdc4fc97fd577; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a01cedf230dc0fcd55b994f5e548d3982ba4c732

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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