CVE-2023-53389drm/mediatek: dp: Only trigger DRM HPD events if bridge is attached
- 5.5MediumCVSS base score
- 0.15%Exploitation in 30 daysEPSS · top 96% 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/mediatek: dp: Only trigger DRM HPD events if bridge is attached The MediaTek DisplayPort interface bridge driver starts its interrupts as soon as its probed. However when the interrupts trigger the bridge might not have been attached to a DRM device. As drm_helper_hpd_irq_event() does not check whether the passed in drm_device is valid or not, a NULL pointer passed in results in a kernel NULL pointer dereference in it. Check whether the bridge is attached and only trigger an HPD event if it is.
Timeline
ID reserved
By Linux
- 1 day later
· 1 day later
Published
- 8 months later
· 8 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 |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 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)
- 0.15% · top 96% 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 f70ac097a2cf5d4b67b2c1bbb73196c573ffcb7b – < 6524d3d58797975cc40b85be1e9b89721b4e8d0b
- affected f70ac097a2cf5d4b67b2c1bbb73196c573ffcb7b – < 3551789d0635dfb2df8ab8e7fdbf0647e9c1724c
- affected f70ac097a2cf5d4b67b2c1bbb73196c573ffcb7b – < d1c04e338016ae2517c641806a831b1f3eee2bed
- affected f70ac097a2cf5d4b67b2c1bbb73196c573ffcb7b – < 36b617f7e4ae663fcadd202ea061ca695ca75539
- affected 6.1
- unaffected < 6.1
- unaffected 6.1.28 – ≤ 6.1.*
- unaffected 6.2.15 – ≤ 6.2.*
- unaffected 6.3.2 – ≤ 6.3.*
- unaffected 6.4 – ≤ *
References
References4
- https://git.kernel.org/stable/c/6524d3d58797975cc40b85be1e9b89721b4e8d0b (opens in a new tab)
- https://git.kernel.org/stable/c/3551789d0635dfb2df8ab8e7fdbf0647e9c1724c (opens in a new tab)
- https://git.kernel.org/stable/c/d1c04e338016ae2517c641806a831b1f3eee2bed (opens in a new tab)
- https://git.kernel.org/stable/c/36b617f7e4ae663fcadd202ea061ca695ca75539 (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-2025-29944 (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-2023-53389)Record last updated .