CVE-2026-64039
Published Jul 19, 2026
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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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/
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.