CVE-2026-64231 is a vulnerability in Linux Kernel
Published on July 24, 2026
drm/msm/dsi: don't dump registers past the mapped region
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/
Products Associated with CVE-2026-64231
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Affected Versions
Linux:- Version bac2c6a62ed91ba4f6c7c14a6a40b7c696b35645 and below 5e2c196c3430fb94225c4102b1028d0146544761 is affected.
- Version bac2c6a62ed91ba4f6c7c14a6a40b7c696b35645 and below 567b5e976e2e15280d78c9ef2add1954a0bbb5b1 is affected.
- Version bac2c6a62ed91ba4f6c7c14a6a40b7c696b35645 and below 9f8274749d9010a1a72f97e547b7eb9ebb82345b is affected.
- Version bac2c6a62ed91ba4f6c7c14a6a40b7c696b35645 and below a184aec790135938b0fadb415e55accd1f8685a0 is affected.
- Version bac2c6a62ed91ba4f6c7c14a6a40b7c696b35645 and below ab871d5882953e5574ae2bc47bec88c2e3d22663 is affected.
- Version bac2c6a62ed91ba4f6c7c14a6a40b7c696b35645 and below 5b49a46baa853b26dbefa65c6c75dd9ff69f63d4 is affected.
- Version 5.14 is affected.
- Before 5.14 is unaffected.
- Version 6.1.175, <= 6.1.* is unaffected.
- Version 6.6.142, <= 6.6.* is unaffected.
- Version 6.12.92, <= 6.12.* is unaffected.
- Version 6.18.34, <= 6.18.* is unaffected.
- Version 7.0.11, <= 7.0.* is unaffected.
- Version 7.1, <= * is unaffected.