CVE-2026-64039

drm/msm/snapshot: fix dumping of the unaligned regions

State: Published
Severity: 7.7 High
Published: Jul 19, 2026
Updated: Aug 5, 2026
Reserved: 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/

Scores

CVSS	Score	Vector	Source
3.1	7.7 High	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	98659487b845c05b6bed85d881713545db674c7c to before 8fb070cf95847b29ef6cb15ec2c0de2bf4704676Affected 98659487b845c05b6bed85d881713545db674c7c to before cecd34e046121d788a70b5c8b4f8a88916637953Affected 98659487b845c05b6bed85d881713545db674c7c to before 070e40acc59ef7bedba0314f59971ba87fcc8ab0Affected 98659487b845c05b6bed85d881713545db674c7c to before 1ef79be774706dddcfcace0331fa7ff32a73c73eAffected 98659487b845c05b6bed85d881713545db674c7c to before cdd1aaf0ee962f50810b9aef7928f2313989d55fAffected 98659487b845c05b6bed85d881713545db674c7c to before 0c90ececfad3fc5c4c43a75ece0e2d736ab3def1Affected 98659487b845c05b6bed85d881713545db674c7c to before 76824d2467feb1828b745d6add2541918d7be3daAffected
LinuxLinux	5.14Affected before 5.14Not affected 5.15.209 through 5.15.Not affected 6.1.175 through 6.1.Not affected 6.6.142 through 6.6.Not affected 6.12.92 through 6.12.Not affected 6.18.34 through 6.18.Not affected 7.0.11 through 7.0.Not affected 7.1 and laterNot affected

Product

Versions

LinuxLinux

98659487b845c05b6bed85d881713545db674c7c to before 8fb070cf95847b29ef6cb15ec2c0de2bf4704676Affected
98659487b845c05b6bed85d881713545db674c7c to before cecd34e046121d788a70b5c8b4f8a88916637953Affected
98659487b845c05b6bed85d881713545db674c7c to before 070e40acc59ef7bedba0314f59971ba87fcc8ab0Affected
98659487b845c05b6bed85d881713545db674c7c to before 1ef79be774706dddcfcace0331fa7ff32a73c73eAffected
98659487b845c05b6bed85d881713545db674c7c to before cdd1aaf0ee962f50810b9aef7928f2313989d55fAffected
98659487b845c05b6bed85d881713545db674c7c to before 0c90ececfad3fc5c4c43a75ece0e2d736ab3def1Affected
98659487b845c05b6bed85d881713545db674c7c to before 76824d2467feb1828b745d6add2541918d7be3daAffected

LinuxLinux

5.14Affected
before 5.14Not affected
5.15.209 through 5.15.*Not affected
6.1.175 through 6.1.*Not affected
6.6.142 through 6.6.*Not affected
6.12.92 through 6.12.*Not affected
6.18.34 through 6.18.*Not affected
7.0.11 through 7.0.*Not affected
7.1 and laterNot affected

References

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