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7.8
HIGH CVSS 3.1
CVE-2026-64221
spi: ti-qspi: fix use-after-free after DMA setup failure
Overview
Description

In the Linux kernel, the following vulnerability has been resolved: spi: ti-qspi: fix use-after-free after DMA setup failure The driver falls back to PIO mode if DMA setup fails during probe. Make sure to clear the DMA channel pointer also if buffer allocation fails to avoid passing a pointer to the released channel to the DMA engine (or trying to free the channel a second time on late probe errors or driver unbind). This issue was flagged by Sashiko when reviewing a devres allocation conversion patch.

Details
INFO

Published Date :

July 24, 2026, 4:16 p.m.

Last Modified :

Aug. 11, 2026, 6:25 p.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Impact
Affected Products

The following products are affected by CVE-2026-64221 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework 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
Apply kernel updates to fix memory corruption due to use-after-free.
  • Update the Linux kernel to the latest version.
  • Apply vendor-specific patches for the driver.
  • Rebuild and install the updated kernel.
  • Reboot the system after updating.
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-2026-64221.

URL Resource
https://git.kernel.org/stable/c/178b9b570c0f75fa7e691490520328b20d19138e Patch
https://git.kernel.org/stable/c/1cd927002120678bd5d23c760246639caa53040e Patch
https://git.kernel.org/stable/c/3bbbe7ae3fdada0df4157c1ffe989f92dfa8dcd6 Patch
https://git.kernel.org/stable/c/9c6f306a8140962c7284197db54b96fdb5f468d6 Patch
https://git.kernel.org/stable/c/d6f422b122922d1abee907d673bcc990e5f3672d Patch
https://git.kernel.org/stable/c/d7a076fb596c7b408ed6df74793a597990a6d860 Patch
https://git.kernel.org/stable/c/ea6ec3343e05f7937a53eb6d7617b3abdb4abc19 Patch
https://git.kernel.org/stable/c/f2dc841d7dc9063fe9b47ced869b1271e55052ae Patch
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-64221 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-2026-64221 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-2026-64221 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-64221 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.

  • Initial Analysis by [email protected]

    Aug. 11, 2026

    Action Type Old Value New Value
    Added CWE CWE-416
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.175 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.209 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.12 up to (excluding) 5.10.258 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.92 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.18.34 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 7.0.11 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.142
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/178b9b570c0f75fa7e691490520328b20d19138e Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/1cd927002120678bd5d23c760246639caa53040e Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/3bbbe7ae3fdada0df4157c1ffe989f92dfa8dcd6 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/9c6f306a8140962c7284197db54b96fdb5f468d6 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/d6f422b122922d1abee907d673bcc990e5f3672d Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/d7a076fb596c7b408ed6df74793a597990a6d860 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/ea6ec3343e05f7937a53eb6d7617b3abdb4abc19 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/f2dc841d7dc9063fe9b47ced869b1271e55052ae Types: Patch
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jul. 27, 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
  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jul. 24, 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': 'c687c46e9e4527c4b4d82bc3cca58c1b08bcfb83', 'lessThan': '9c6f306a8140962c7284197db54b96fdb5f468d6', 'versionType': 'git'}, {'status': 'affected', 'version': 'c687c46e9e4527c4b4d82bc3cca58c1b08bcfb83', 'lessThan': '3bbbe7ae3fdada0df4157c1ffe989f92dfa8dcd6', 'versionType': 'git'}, {'status': 'affected', 'version': 'c687c46e9e4527c4b4d82bc3cca58c1b08bcfb83', 'lessThan': 'd6f422b122922d1abee907d673bcc990e5f3672d', 'versionType': 'git'}, {'status': 'affected', 'version': 'c687c46e9e4527c4b4d82bc3cca58c1b08bcfb83', 'lessThan': 'f2dc841d7dc9063fe9b47ced869b1271e55052ae', 'versionType': 'git'}, {'status': 'affected', 'version': 'c687c46e9e4527c4b4d82bc3cca58c1b08bcfb83', 'lessThan': '1cd927002120678bd5d23c760246639caa53040e', 'versionType': 'git'}, {'status': 'affected', 'version': 'c687c46e9e4527c4b4d82bc3cca58c1b08bcfb83', 'lessThan': 'd7a076fb596c7b408ed6df74793a597990a6d860', 'versionType': 'git'}, {'status': 'affected', 'version': 'c687c46e9e4527c4b4d82bc3cca58c1b08bcfb83', 'lessThan': '178b9b570c0f75fa7e691490520328b20d19138e', 'versionType': 'git'}, {'status': 'affected', 'version': 'c687c46e9e4527c4b4d82bc3cca58c1b08bcfb83', 'lessThan': 'ea6ec3343e05f7937a53eb6d7617b3abdb4abc19', 'versionType': 'git'}], 'programFiles': ['drivers/spi/spi-ti-qspi.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4.12'}, {'status': 'unaffected', 'version': '0', 'lessThan': '4.12', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.258', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.209', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.175', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.142', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.92', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.34', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.11', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/spi/spi-ti-qspi.c'], 'defaultStatus': 'affected'}]
    Added Description In the Linux kernel, the following vulnerability has been resolved: spi: ti-qspi: fix use-after-free after DMA setup failure The driver falls back to PIO mode if DMA setup fails during probe. Make sure to clear the DMA channel pointer also if buffer allocation fails to avoid passing a pointer to the released channel to the DMA engine (or trying to free the channel a second time on late probe errors or driver unbind). This issue was flagged by Sashiko when reviewing a devres allocation conversion patch.
    Added Reference https://git.kernel.org/stable/c/178b9b570c0f75fa7e691490520328b20d19138e
    Added Reference https://git.kernel.org/stable/c/1cd927002120678bd5d23c760246639caa53040e
    Added Reference https://git.kernel.org/stable/c/3bbbe7ae3fdada0df4157c1ffe989f92dfa8dcd6
    Added Reference https://git.kernel.org/stable/c/9c6f306a8140962c7284197db54b96fdb5f468d6
    Added Reference https://git.kernel.org/stable/c/d6f422b122922d1abee907d673bcc990e5f3672d
    Added Reference https://git.kernel.org/stable/c/d7a076fb596c7b408ed6df74793a597990a6d860
    Added Reference https://git.kernel.org/stable/c/ea6ec3343e05f7937a53eb6d7617b3abdb4abc19
    Added Reference https://git.kernel.org/stable/c/f2dc841d7dc9063fe9b47ced869b1271e55052ae
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.
CVSS
Vulnerability Scoring Details
Base CVSS Score: 7.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact