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9.8
CRITICAL CVSS 3.1
CVE-2026-64303
spi: fsl-lpspi: terminate the RX channel on TX prepare failure path
Overview
Description

In the Linux kernel, the following vulnerability has been resolved: spi: fsl-lpspi: terminate the RX channel on TX prepare failure path When dmaengine_prep_slave_sg() fails for the TX channel, the error path terminates the TX DMA channel but leaves the RX channel running. Since the RX channel was already submitted and issued prior to preparing the TX descriptor, returning -EINVAL causes the SPI core to unmap the DMA buffers while the RX DMA engine continues writing to them, leading to potential memory corruption or use-after-free. Terminate the RX channel before returning on the TX prepare failure path.

Details
INFO

Published Date :

July 25, 2026, 10:17 a.m.

Last Modified :

Aug. 17, 2026, 5:17 a.m.

Remotely Exploit :

Yes !

Source :

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

The following products are affected by CVE-2026-64303 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 CRITICAL 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
Terminate RX channel on TX prepare failure to prevent memory corruption.
  • Apply the kernel patch to terminate the RX channel.
  • Ensure DMA channels are properly managed on failure.
  • Update the Linux kernel to the fixed version.
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-2026-64303.

URL Resource
https://git.kernel.org/stable/c/01980b5da56e573d62798d0ff6c86bcaa2b22cbe
https://git.kernel.org/stable/c/808033d80d5c9f8adf7e8de9317389270ce13430
https://git.kernel.org/stable/c/9d000bdd250d649a11cd7f733175686877344582
https://git.kernel.org/stable/c/ad370d1c7a9a832f77b2341513cd31188c9443af
https://git.kernel.org/stable/c/af39a2698f69b584d14a00cffe0f51a2caa15337
https://git.kernel.org/stable/c/cce2063404b2341e7b2bbf85eddfcd70a31a0033
https://git.kernel.org/stable/c/d5c1060218a3749c8a18b36f8169d910fce20639
https://git.kernel.org/stable/c/e65505d91fa036a238968e4c10744244d1b968c4
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-64303 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-2026-64303 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-2026-64303 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-2026-64303 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
    Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '09c04466ce7ea494993c0635ba5edb6d2222a806', 'lessThan': 'ad370d1c7a9a832f77b2341513cd31188c9443af', 'versionType': 'git'}, {'status': 'affected', 'version': '09c04466ce7ea494993c0635ba5edb6d2222a806', 'lessThan': 'cce2063404b2341e7b2bbf85eddfcd70a31a0033', 'versionType': 'git'}, {'status': 'affected', 'version': '09c04466ce7ea494993c0635ba5edb6d2222a806', 'lessThan': 'af39a2698f69b584d14a00cffe0f51a2caa15337', 'versionType': 'git'}, {'status': 'affected', 'version': '09c04466ce7ea494993c0635ba5edb6d2222a806', 'lessThan': 'e65505d91fa036a238968e4c10744244d1b968c4', 'versionType': 'git'}, {'status': 'affected', 'version': '09c04466ce7ea494993c0635ba5edb6d2222a806', 'lessThan': 'd5c1060218a3749c8a18b36f8169d910fce20639', 'versionType': 'git'}, {'status': 'affected', 'version': '09c04466ce7ea494993c0635ba5edb6d2222a806', 'lessThan': '808033d80d5c9f8adf7e8de9317389270ce13430', 'versionType': 'git'}, {'status': 'affected', 'version': '09c04466ce7ea494993c0635ba5edb6d2222a806', 'lessThan': '9d000bdd250d649a11cd7f733175686877344582', 'versionType': 'git'}, {'status': 'affected', 'version': '09c04466ce7ea494993c0635ba5edb6d2222a806', 'lessThan': '01980b5da56e573d62798d0ff6c86bcaa2b22cbe', 'versionType': 'git'}], 'programFiles': ['drivers/spi/spi-fsl-lpspi.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.2'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.2', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'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': '6.12.96', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.39', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.4', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/spi/spi-fsl-lpspi.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '09c04466ce7ea494993c0635ba5edb6d2222a806', 'lessThan': 'ad370d1c7a9a832f77b2341513cd31188c9443af', 'versionType': 'git'}, {'status': 'affected', 'version': '09c04466ce7ea494993c0635ba5edb6d2222a806', 'lessThan': 'cce2063404b2341e7b2bbf85eddfcd70a31a0033', 'versionType': 'git'}, {'status': 'affected', 'version': '09c04466ce7ea494993c0635ba5edb6d2222a806', 'lessThan': 'af39a2698f69b584d14a00cffe0f51a2caa15337', 'versionType': 'git'}, {'status': 'affected', 'version': '09c04466ce7ea494993c0635ba5edb6d2222a806', 'lessThan': 'e65505d91fa036a238968e4c10744244d1b968c4', 'versionType': 'git'}, {'status': 'affected', 'version': '09c04466ce7ea494993c0635ba5edb6d2222a806', 'lessThan': 'd5c1060218a3749c8a18b36f8169d910fce20639', 'versionType': 'git'}, {'status': 'affected', 'version': '09c04466ce7ea494993c0635ba5edb6d2222a806', 'lessThan': '808033d80d5c9f8adf7e8de9317389270ce13430', 'versionType': 'git'}, {'status': 'affected', 'version': '09c04466ce7ea494993c0635ba5edb6d2222a806', 'lessThan': '9d000bdd250d649a11cd7f733175686877344582', 'versionType': 'git'}, {'status': 'affected', 'version': '09c04466ce7ea494993c0635ba5edb6d2222a806', 'lessThan': '01980b5da56e573d62798d0ff6c86bcaa2b22cbe', 'versionType': 'git'}], 'programFiles': ['drivers/spi/spi-fsl-lpspi.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.2'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.2', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'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': '6.12.96', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.39', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.4', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/spi/spi-fsl-lpspi.c'], 'defaultStatus': 'affected'}]
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jul. 27, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jul. 25, 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': '09c04466ce7ea494993c0635ba5edb6d2222a806', 'lessThan': 'ad370d1c7a9a832f77b2341513cd31188c9443af', 'versionType': 'git'}, {'status': 'affected', 'version': '09c04466ce7ea494993c0635ba5edb6d2222a806', 'lessThan': 'cce2063404b2341e7b2bbf85eddfcd70a31a0033', 'versionType': 'git'}, {'status': 'affected', 'version': '09c04466ce7ea494993c0635ba5edb6d2222a806', 'lessThan': 'af39a2698f69b584d14a00cffe0f51a2caa15337', 'versionType': 'git'}, {'status': 'affected', 'version': '09c04466ce7ea494993c0635ba5edb6d2222a806', 'lessThan': 'e65505d91fa036a238968e4c10744244d1b968c4', 'versionType': 'git'}, {'status': 'affected', 'version': '09c04466ce7ea494993c0635ba5edb6d2222a806', 'lessThan': 'd5c1060218a3749c8a18b36f8169d910fce20639', 'versionType': 'git'}, {'status': 'affected', 'version': '09c04466ce7ea494993c0635ba5edb6d2222a806', 'lessThan': '808033d80d5c9f8adf7e8de9317389270ce13430', 'versionType': 'git'}, {'status': 'affected', 'version': '09c04466ce7ea494993c0635ba5edb6d2222a806', 'lessThan': '9d000bdd250d649a11cd7f733175686877344582', 'versionType': 'git'}, {'status': 'affected', 'version': '09c04466ce7ea494993c0635ba5edb6d2222a806', 'lessThan': '01980b5da56e573d62798d0ff6c86bcaa2b22cbe', 'versionType': 'git'}], 'programFiles': ['drivers/spi/spi-fsl-lpspi.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.2'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.2', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'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': '6.12.96', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.39', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.4', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/spi/spi-fsl-lpspi.c'], 'defaultStatus': 'affected'}]
    Added Description In the Linux kernel, the following vulnerability has been resolved: spi: fsl-lpspi: terminate the RX channel on TX prepare failure path When dmaengine_prep_slave_sg() fails for the TX channel, the error path terminates the TX DMA channel but leaves the RX channel running. Since the RX channel was already submitted and issued prior to preparing the TX descriptor, returning -EINVAL causes the SPI core to unmap the DMA buffers while the RX DMA engine continues writing to them, leading to potential memory corruption or use-after-free. Terminate the RX channel before returning on the TX prepare failure path.
    Added Reference https://git.kernel.org/stable/c/01980b5da56e573d62798d0ff6c86bcaa2b22cbe
    Added Reference https://git.kernel.org/stable/c/808033d80d5c9f8adf7e8de9317389270ce13430
    Added Reference https://git.kernel.org/stable/c/9d000bdd250d649a11cd7f733175686877344582
    Added Reference https://git.kernel.org/stable/c/ad370d1c7a9a832f77b2341513cd31188c9443af
    Added Reference https://git.kernel.org/stable/c/af39a2698f69b584d14a00cffe0f51a2caa15337
    Added Reference https://git.kernel.org/stable/c/cce2063404b2341e7b2bbf85eddfcd70a31a0033
    Added Reference https://git.kernel.org/stable/c/d5c1060218a3749c8a18b36f8169d910fce20639
    Added Reference https://git.kernel.org/stable/c/e65505d91fa036a238968e4c10744244d1b968c4
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: 9.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact