CVE-2026-64231drm/msm/dsi: don't dump registers past the mapped region
- 5.5MediumCVSS base score
- 0.12%Exploitation in 30 daysEPSS · top 98% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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/
Timeline
ID reserved
By Linux
- 5 days later
· 5 days later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.12% · top 98% of all CVEs (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected bac2c6a62ed91ba4f6c7c14a6a40b7c696b35645 – < 5e2c196c3430fb94225c4102b1028d0146544761
- affected bac2c6a62ed91ba4f6c7c14a6a40b7c696b35645 – < 567b5e976e2e15280d78c9ef2add1954a0bbb5b1
- affected bac2c6a62ed91ba4f6c7c14a6a40b7c696b35645 – < 9f8274749d9010a1a72f97e547b7eb9ebb82345b
- affected bac2c6a62ed91ba4f6c7c14a6a40b7c696b35645 – < a184aec790135938b0fadb415e55accd1f8685a0
- affected bac2c6a62ed91ba4f6c7c14a6a40b7c696b35645 – < ab871d5882953e5574ae2bc47bec88c2e3d22663
- affected bac2c6a62ed91ba4f6c7c14a6a40b7c696b35645 – < 5b49a46baa853b26dbefa65c6c75dd9ff69f63d4
- affected 5.14
- unaffected < 5.14
- unaffected 6.1.175 – ≤ 6.1.*
- unaffected 6.6.142 – ≤ 6.6.*
- unaffected 6.12.92 – ≤ 6.12.*
- unaffected 6.18.34 – ≤ 6.18.*
- unaffected 7.0.11 – ≤ 7.0.*
- unaffected 7.1 – ≤ *
References
References6
- https://git.kernel.org/stable/c/5e2c196c3430fb94225c4102b1028d0146544761 (opens in a new tab)
- https://git.kernel.org/stable/c/567b5e976e2e15280d78c9ef2add1954a0bbb5b1 (opens in a new tab)
- https://git.kernel.org/stable/c/9f8274749d9010a1a72f97e547b7eb9ebb82345b (opens in a new tab)
- https://git.kernel.org/stable/c/a184aec790135938b0fadb415e55accd1f8685a0 (opens in a new tab)
- https://git.kernel.org/stable/c/ab871d5882953e5574ae2bc47bec88c2e3d22663 (opens in a new tab)
- https://git.kernel.org/stable/c/5b49a46baa853b26dbefa65c6c75dd9ff69f63d4 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-48639 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-64231)Record last updated .