7.8
HIGH
CVSS 3.1
CVE-2026-68467
mtd: mchp23k256: use SPI match data for chip caps
Overview
Description
In the Linux kernel, the following vulnerability has been resolved: mtd: mchp23k256: use SPI match data for chip caps The driver stores chip capacity information in both the OF match table and the SPI id table. Probe currently uses of_device_get_match_data(), so a non-OF SPI modalias match falls back to mchp23k256_caps even when the SPI id table selected a different part. Use spi_get_device_match_data() so SPI id-table driver_data is consumed when OF match data is absent. This keeps the existing default fallback while avoiding the wrong MTD geometry for id-table-only matches.
Details
INFO
Published Date :
Aug. 15, 2026, 6:19 a.m.
Last Modified :
Aug. 17, 2026, 6:17 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Scoring
CVSS Scores
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for assessing the severity of vulnerabilities in software and systems.
We collect and displays CVSS scores from various sources for each CVE.
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
Solution
Update the Linux kernel to resolve incorrect MTD geometry due to inconsistent chip capacity data.
- Apply the kernel patch for mtd: mchp23k256.
- Update the Linux kernel to the patched version.
- Verify chip capacity data consistency.
- Reboot the system if necessary.
References
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-68467.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-68467 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-68467
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-68467 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-68467 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 17, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4379075a870b8de43a9ecd5b46884953234fc669', 'lessThan': '2e179b028da9fd628a09286a2c9df4fa076b2cc9', 'versionType': 'git'}, {'status': 'affected', 'version': '4379075a870b8de43a9ecd5b46884953234fc669', 'lessThan': 'a0c38083623c8b210a5b87fd34bebd05aa935ae8', 'versionType': 'git'}, {'status': 'affected', 'version': '4379075a870b8de43a9ecd5b46884953234fc669', 'lessThan': '7c0a3a73dccc9a3fc701f6be762449f18d0ca0fc', 'versionType': 'git'}, {'status': 'affected', 'version': '4379075a870b8de43a9ecd5b46884953234fc669', 'lessThan': 'dbe2254d1da99c986f9a3392471fc5eaa3229647', 'versionType': 'git'}, {'status': 'affected', 'version': '4379075a870b8de43a9ecd5b46884953234fc669', 'lessThan': '04ebd3766861f219325852c9598e0f0281cb3636', 'versionType': 'git'}, {'status': 'affected', 'version': '4379075a870b8de43a9ecd5b46884953234fc669', 'lessThan': '09e044192a42f716215fbd1a100ee87fa57426aa', 'versionType': 'git'}, {'status': 'affected', 'version': '4379075a870b8de43a9ecd5b46884953234fc669', 'lessThan': 'd322e40f4edf92bf0ca329e5aa4ae1c0316feb38', 'versionType': 'git'}], 'programFiles': ['drivers/mtd/devices/mchp23k256.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4.13'}, {'status': 'unaffected', 'version': '0', 'lessThan': '4.13', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc4', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/mtd/devices/mchp23k256.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4379075a870b8de43a9ecd5b46884953234fc669', 'lessThan': '2e179b028da9fd628a09286a2c9df4fa076b2cc9', 'versionType': 'git'}, {'status': 'affected', 'version': '4379075a870b8de43a9ecd5b46884953234fc669', 'lessThan': 'a0c38083623c8b210a5b87fd34bebd05aa935ae8', 'versionType': 'git'}, {'status': 'affected', 'version': '4379075a870b8de43a9ecd5b46884953234fc669', 'lessThan': '7c0a3a73dccc9a3fc701f6be762449f18d0ca0fc', 'versionType': 'git'}, {'status': 'affected', 'version': '4379075a870b8de43a9ecd5b46884953234fc669', 'lessThan': 'dbe2254d1da99c986f9a3392471fc5eaa3229647', 'versionType': 'git'}, {'status': 'affected', 'version': '4379075a870b8de43a9ecd5b46884953234fc669', 'lessThan': '04ebd3766861f219325852c9598e0f0281cb3636', 'versionType': 'git'}, {'status': 'affected', 'version': '4379075a870b8de43a9ecd5b46884953234fc669', 'lessThan': '09e044192a42f716215fbd1a100ee87fa57426aa', 'versionType': 'git'}, {'status': 'affected', 'version': '4379075a870b8de43a9ecd5b46884953234fc669', 'lessThan': 'd322e40f4edf92bf0ca329e5aa4ae1c0316feb38', 'versionType': 'git'}], 'programFiles': ['drivers/mtd/devices/mchp23k256.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4.13'}, {'status': 'unaffected', 'version': '0', 'lessThan': '4.13', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/mtd/devices/mchp23k256.c'], 'defaultStatus': 'affected'}] -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 15, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4379075a870b8de43a9ecd5b46884953234fc669', 'lessThan': '2e179b028da9fd628a09286a2c9df4fa076b2cc9', 'versionType': 'git'}, {'status': 'affected', 'version': '4379075a870b8de43a9ecd5b46884953234fc669', 'lessThan': 'a0c38083623c8b210a5b87fd34bebd05aa935ae8', 'versionType': 'git'}, {'status': 'affected', 'version': '4379075a870b8de43a9ecd5b46884953234fc669', 'lessThan': '7c0a3a73dccc9a3fc701f6be762449f18d0ca0fc', 'versionType': 'git'}, {'status': 'affected', 'version': '4379075a870b8de43a9ecd5b46884953234fc669', 'lessThan': 'dbe2254d1da99c986f9a3392471fc5eaa3229647', 'versionType': 'git'}, {'status': 'affected', 'version': '4379075a870b8de43a9ecd5b46884953234fc669', 'lessThan': '04ebd3766861f219325852c9598e0f0281cb3636', 'versionType': 'git'}, {'status': 'affected', 'version': '4379075a870b8de43a9ecd5b46884953234fc669', 'lessThan': '09e044192a42f716215fbd1a100ee87fa57426aa', 'versionType': 'git'}, {'status': 'affected', 'version': '4379075a870b8de43a9ecd5b46884953234fc669', 'lessThan': 'd322e40f4edf92bf0ca329e5aa4ae1c0316feb38', 'versionType': 'git'}], 'programFiles': ['drivers/mtd/devices/mchp23k256.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4.13'}, {'status': 'unaffected', 'version': '0', 'lessThan': '4.13', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc4', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/mtd/devices/mchp23k256.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: mtd: mchp23k256: use SPI match data for chip caps The driver stores chip capacity information in both the OF match table and the SPI id table. Probe currently uses of_device_get_match_data(), so a non-OF SPI modalias match falls back to mchp23k256_caps even when the SPI id table selected a different part. Use spi_get_device_match_data() so SPI id-table driver_data is consumed when OF match data is absent. This keeps the existing default fallback while avoiding the wrong MTD geometry for id-table-only matches. Added Reference https://git.kernel.org/stable/c/04ebd3766861f219325852c9598e0f0281cb3636 Added Reference https://git.kernel.org/stable/c/09e044192a42f716215fbd1a100ee87fa57426aa Added Reference https://git.kernel.org/stable/c/2e179b028da9fd628a09286a2c9df4fa076b2cc9 Added Reference https://git.kernel.org/stable/c/7c0a3a73dccc9a3fc701f6be762449f18d0ca0fc Added Reference https://git.kernel.org/stable/c/a0c38083623c8b210a5b87fd34bebd05aa935ae8 Added Reference https://git.kernel.org/stable/c/d322e40f4edf92bf0ca329e5aa4ae1c0316feb38 Added Reference https://git.kernel.org/stable/c/dbe2254d1da99c986f9a3392471fc5eaa3229647
EPSS is a daily estimate of the probability of exploitation activity
being observed over the next 30 days. Following chart shows the EPSS
score history of the vulnerability.