CVE-2024-35952drm/ast: Fix soft lockup
- 5.5MediumCVSS base score
- 0.17%Exploitation in 30 daysEPSS · top 93% 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/ast: Fix soft lockup There is a while-loop in ast_dp_set_on_off() that could lead to infinite-loop. This is because the register, VGACRI-Dx, checked in this API is a scratch register actually controlled by a MCU, named DPMCU, in BMC. These scratch registers are protected by scu-lock. If suc-lock is not off, DPMCU can not update these registers and then host will have soft lockup due to never updated status. DPMCU is used to control DP and relative registers to handshake with host's VGA driver. Even the most time-consuming task, DP's link training, is less than 100ms. 200ms should be enough.
Timeline
ID reserved
By Linux
- 3 days later
· 3 days later
Published
- 24 months later
· 24 months later
Record updated
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)
- 0.17% · top 93% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 594e9c04b5864b4b8b151ef4ba9521c59e0f5c54 – < 8a6fea3fcb577a543ef67683ca7105bde49a38fb
- affected 594e9c04b5864b4b8b151ef4ba9521c59e0f5c54 – < a81b2acd43e24e419f65df97348c76a5a1496066
- affected 594e9c04b5864b4b8b151ef4ba9521c59e0f5c54 – < 35768baf0fdfc47ede42d899506bad78450e9294
- affected 594e9c04b5864b4b8b151ef4ba9521c59e0f5c54 – < bc004f5038220b1891ef4107134ccae44be55109
- affected 5.19
- unaffected < 5.19
- unaffected 6.1.87 – ≤ 6.1.*
- unaffected 6.6.28 – ≤ 6.6.*
- unaffected 6.8.7 – ≤ 6.8.*
- unaffected 6.9 – ≤ *
References
References4
- https://git.kernel.org/stable/c/8a6fea3fcb577a543ef67683ca7105bde49a38fb (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/a81b2acd43e24e419f65df97348c76a5a1496066 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/35768baf0fdfc47ede42d899506bad78450e9294 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/bc004f5038220b1891ef4107134ccae44be55109 (opens in a new tab)x_transferred
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-2024-35670 (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-2024-35952)Record last updated .