CVE-2026-64039 (CVSS 7.7)

Description

In the Linux kernel, the following vulnerability has been resolved: drm/msm/snapshot: fix dumping of the unaligned regions The snapshotting code internally aligns data segment to 16 bytes. This works fine for DPU code (where most of the regions are aligned), but fails for snapshotting of the DSI data (because DSI data region is shifted by 4 bytes). Fix the code by removing length alignment and by accurately printing last registers in the region. While reworking the code also fix the 16x memory overallocation in msm_disp_state_dump_regs(). Patchwork: https://patchwork.freedesktop.org/patch/725449/

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CVSS v3.1 Score

7.7

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

EPSS — Exploit Prediction

0.0018

Probability of exploitation

0.08%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

References

Other References

https://git.kernel.org/stable/c/070e40acc59ef7bedba0314f59971ba87fcc8ab0 https://git.kernel.org/stable/c/0c90ececfad3fc5c4c43a75ece0e2d736ab3def1 https://git.kernel.org/stable/c/1ef79be774706dddcfcace0331fa7ff32a73c73e https://git.kernel.org/stable/c/76824d2467feb1828b745d6add2541918d7be3da https://git.kernel.org/stable/c/8fb070cf95847b29ef6cb15ec2c0de2bf4704676 https://git.kernel.org/stable/c/cdd1aaf0ee962f50810b9aef7928f2313989d55f https://git.kernel.org/stable/c/cecd34e046121d788a70b5c8b4f8a88916637953

Frequently Asked Questions

What is CVE-2026-64039? +

In the Linux kernel, the following vulnerability has been resolved: drm/msm/snapshot: fix dumping of the unaligned regions The snapshotting code internally aligns data segment to 16 bytes. This works fine for DPU code (where most of the regions are aligned), but fails for snapshotting of the DSI data (because DSI data region is shifted by 4 bytes). Fix the code by removing length alignment and by accurately printing last registers in the region. While reworking the code also fix the 16x memory overallocation in msm_disp_state_dump_regs(). Patchwork: https://patchwork.freedesktop.org/patch/725449/ It has a CVSS v3.1 base score of 7.7 (HIGH).

How severe is CVE-2026-64039? +

CVE-2026-64039 has a CVSS v3.1 score of 7.7 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0018, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-64039? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

CVE-2026-64039