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CVE-2026-64231
drm/msm/dsi: don't dump registers past the mapped region
Overview
Description

In the Linux kernel, the following vulnerability has been resolved: drm/msm/dsi: don't dump registers past the mapped region On DSI 6G platforms the IO address space is internally adjusted by io_offset. Later this adjusted address might be used for memory dumping. However the size that is used for memory dumping isn't adjusted to account for the io_offset, leading to the potential access to the unmapped region. Lower ctrl_size by the io_offset value to prevent access past the mapped area. msm_disp_snapshot_add_block+0x1d4/0x3c8 [msm] (P) msm_dsi_host_snapshot+0x4c/0x78 [msm] msm_dsi_snapshot+0x28/0x50 [msm] msm_disp_snapshot_capture_state+0x74/0x140 [msm] msm_disp_snapshot_state_sync+0x60/0x90 [msm] _msm_disp_snapshot_work+0x30/0x90 [msm] kthread_worker_fn+0xdc/0x460 kthread+0x120/0x140 Patchwork: https://patchwork.freedesktop.org/patch/721747/

Details
INFO

Published Date :

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

Last Modified :

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

Remotely Exploit :

No

Source :

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

The following products are affected by CVE-2026-64231 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.

No affected product recoded yet

: Total Affected Vendor : 0 | Products : 0
Solution
Adjust memory dump size to prevent out-of-bounds access by accounting for IO offset.
  • Verify IO offset adjustment for memory dumping.
  • Ensure dump size is adjusted by IO offset.
  • Apply kernel updates with the fix.
  • Test the system after applying the patch.
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-2026-64231.

URL Resource
https://git.kernel.org/stable/c/567b5e976e2e15280d78c9ef2add1954a0bbb5b1
https://git.kernel.org/stable/c/5b49a46baa853b26dbefa65c6c75dd9ff69f63d4
https://git.kernel.org/stable/c/5e2c196c3430fb94225c4102b1028d0146544761
https://git.kernel.org/stable/c/9f8274749d9010a1a72f97e547b7eb9ebb82345b
https://git.kernel.org/stable/c/a184aec790135938b0fadb415e55accd1f8685a0
https://git.kernel.org/stable/c/ab871d5882953e5574ae2bc47bec88c2e3d22663
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-64231 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-2026-64231 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-2026-64231 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-2026-64231 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.

  • 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': 'bac2c6a62ed91ba4f6c7c14a6a40b7c696b35645', 'lessThan': '5e2c196c3430fb94225c4102b1028d0146544761', 'versionType': 'git'}, {'status': 'affected', 'version': 'bac2c6a62ed91ba4f6c7c14a6a40b7c696b35645', 'lessThan': '567b5e976e2e15280d78c9ef2add1954a0bbb5b1', 'versionType': 'git'}, {'status': 'affected', 'version': 'bac2c6a62ed91ba4f6c7c14a6a40b7c696b35645', 'lessThan': '9f8274749d9010a1a72f97e547b7eb9ebb82345b', 'versionType': 'git'}, {'status': 'affected', 'version': 'bac2c6a62ed91ba4f6c7c14a6a40b7c696b35645', 'lessThan': 'a184aec790135938b0fadb415e55accd1f8685a0', 'versionType': 'git'}, {'status': 'affected', 'version': 'bac2c6a62ed91ba4f6c7c14a6a40b7c696b35645', 'lessThan': 'ab871d5882953e5574ae2bc47bec88c2e3d22663', 'versionType': 'git'}, {'status': 'affected', 'version': 'bac2c6a62ed91ba4f6c7c14a6a40b7c696b35645', 'lessThan': '5b49a46baa853b26dbefa65c6c75dd9ff69f63d4', 'versionType': 'git'}], 'programFiles': ['drivers/gpu/drm/msm/dsi/dsi_host.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.14'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.14', 'versionType': 'semver'}, {'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/gpu/drm/msm/dsi/dsi_host.c'], 'defaultStatus': 'affected'}]
    Added Description In the Linux kernel, the following vulnerability has been resolved: drm/msm/dsi: don't dump registers past the mapped region On DSI 6G platforms the IO address space is internally adjusted by io_offset. Later this adjusted address might be used for memory dumping. However the size that is used for memory dumping isn't adjusted to account for the io_offset, leading to the potential access to the unmapped region. Lower ctrl_size by the io_offset value to prevent access past the mapped area. msm_disp_snapshot_add_block+0x1d4/0x3c8 [msm] (P) msm_dsi_host_snapshot+0x4c/0x78 [msm] msm_dsi_snapshot+0x28/0x50 [msm] msm_disp_snapshot_capture_state+0x74/0x140 [msm] msm_disp_snapshot_state_sync+0x60/0x90 [msm] _msm_disp_snapshot_work+0x30/0x90 [msm] kthread_worker_fn+0xdc/0x460 kthread+0x120/0x140 Patchwork: https://patchwork.freedesktop.org/patch/721747/
    Added Reference https://git.kernel.org/stable/c/567b5e976e2e15280d78c9ef2add1954a0bbb5b1
    Added Reference https://git.kernel.org/stable/c/5b49a46baa853b26dbefa65c6c75dd9ff69f63d4
    Added Reference https://git.kernel.org/stable/c/5e2c196c3430fb94225c4102b1028d0146544761
    Added Reference https://git.kernel.org/stable/c/9f8274749d9010a1a72f97e547b7eb9ebb82345b
    Added Reference https://git.kernel.org/stable/c/a184aec790135938b0fadb415e55accd1f8685a0
    Added Reference https://git.kernel.org/stable/c/ab871d5882953e5574ae2bc47bec88c2e3d22663
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
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