CVE-2026-64039

Summary

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/

Affected Software

VendorProductVersion RangeStatus
LinuxLinux98659487b845c05b6bed85d881713545db674c7c < 8fb070cf95847b29ef6cb15ec2c0de2bf4704676affected
LinuxLinux98659487b845c05b6bed85d881713545db674c7c < cecd34e046121d788a70b5c8b4f8a88916637953affected
LinuxLinux98659487b845c05b6bed85d881713545db674c7c < 070e40acc59ef7bedba0314f59971ba87fcc8ab0affected
LinuxLinux98659487b845c05b6bed85d881713545db674c7c < 1ef79be774706dddcfcace0331fa7ff32a73c73eaffected
LinuxLinux98659487b845c05b6bed85d881713545db674c7c < cdd1aaf0ee962f50810b9aef7928f2313989d55faffected
LinuxLinux98659487b845c05b6bed85d881713545db674c7c < 0c90ececfad3fc5c4c43a75ece0e2d736ab3def1affected
LinuxLinux98659487b845c05b6bed85d881713545db674c7c < 76824d2467feb1828b745d6add2541918d7be3daaffected
LinuxLinux5.14affected
LinuxLinux0 < 5.14unaffected
LinuxLinux5.15.209 <= 5.15.*unaffected
LinuxLinux6.1.175 <= 6.1.*unaffected
LinuxLinux6.6.142 <= 6.6.*unaffected
LinuxLinux6.12.92 <= 6.12.*unaffected
LinuxLinux6.18.34 <= 6.18.*unaffected
LinuxLinux7.0.11 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References