CVE-2026-64231

EUVD-2026-48639
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/
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
UNKNOWN
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Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
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linux
bookworm
6.1.176-1
fixed
bookworm (security)
6.1.177-1
fixed
bullseye
5.10.223-1
fixed
bullseye (security)
5.10.259-1
fixed
forky
7.1.3-1
fixed
sid
7.1.4-1
fixed
trixie
6.12.94-1
fixed
trixie (security)
6.12.96-1
fixed