CVEvulnerability
CVE-2026-64231
5.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-07-24
- Last modified
- 2026-08-12
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Description
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/
Affected configurations
• linux linux kernel (>= 5.14 < 6.1.175)
• linux linux kernel (>= 6.2 < 6.6.142)
• linux linux kernel (>= 6.7 < 6.12.92)
• linux linux kernel (>= 6.13 < 6.18.34)
• linux linux kernel (>= 6.19 < 7.0.11)
• linux linux kernel 7.1
References
- https://git.kernel.org/stable/c/567b5e976e2e15280d78c9ef2add1954a0bbb5b1 Patch
- https://git.kernel.org/stable/c/5b49a46baa853b26dbefa65c6c75dd9ff69f63d4 Patch
- https://git.kernel.org/stable/c/5e2c196c3430fb94225c4102b1028d0146544761 Patch
- https://git.kernel.org/stable/c/9f8274749d9010a1a72f97e547b7eb9ebb82345b Patch
- https://git.kernel.org/stable/c/a184aec790135938b0fadb415e55accd1f8685a0 Patch
- https://git.kernel.org/stable/c/ab871d5882953e5574ae2bc47bec88c2e3d22663 Patch