CVE-2025-38702None▾ Sunlit

fbdev: fix potential buffer overflow in do_register_framebuffer()

In the Linux kernel, the following vulnerability has been resolved: fbdev: fix potential buffer overflow in do_register_framebuffer() The current implementation may lead to buffer overflow when: 1. Unregistration creates NULL gaps in …

▾ Sunlit zone — Low / medium · no exploitation signal

Depth score3/ 100 · Minimal

impact 2.8 · likelihood 0 · exploitation 0

⚡ Agent-ready:Raw markdown ↗JSON ↗

Proof of concept

Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.

…

Published

Sep 4, 2025

Updated

Oct 15, 2026

CVSS

—

Vendor

Linux

Product

Linux

CWE

—

Depth score

3 · Minimal

EPSS

0.19% · p9

Platforms

—

Source

CVEORG

Vector

—

EPSS history

Exploit-prediction probability, daily snapshots since Oct 15.

0.2% → 0.2%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

3 events · 406 days

Sep 4, 2025Published
Disclosed via CVEORG
Oct 15, 2026Record revised
Last analysed / modified upstream
Oct 15, 2026EPSS first tracked
0.2%

Linux #cve.org

Affected

Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 5c3f5a25c62230b7965804ce7a2e9305c3ca3961
Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < cbe740de32bb0fb7a5213731ff5f26ea6718fca3
Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 806f85bdd3a60187c21437fc51baace11f659f35
Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 2828a433c7d7a05b6f27c8148502095101dd0b09
Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 248b2aab9b2af5ecf89d9d7955a2ff20c4b4a399
Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 523b84dc7ccea9c4d79126d6ed1cf9033cf83b05
Linux 2.6.12

Full technical detail▾

Overview

In the Linux kernel, the following vulnerability has been resolved:

fbdev: fix potential buffer overflow in do_register_framebuffer()

The current implementation may lead to buffer overflow when:

Unregistration creates NULL gaps in registered_fb[]
All array slots become occupied despite num_registered_fb < FB_MAX
The registration loop exceeds array bounds

Add boundary check to prevent registered_fb[FB_MAX] access.

Affected

Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 5c3f5a25c62230b7965804ce7a2e9305c3ca3961
Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < cbe740de32bb0fb7a5213731ff5f26ea6718fca3
Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 806f85bdd3a60187c21437fc51baace11f659f35
Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 2828a433c7d7a05b6f27c8148502095101dd0b09
Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 248b2aab9b2af5ecf89d9d7955a2ff20c4b4a399
Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 523b84dc7ccea9c4d79126d6ed1cf9033cf83b05
Linux 2.6.12

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

References

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#cve.org

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CVE-2025-38702None▾ Sunlit

fbdev: fix potential buffer overflow in do_register_framebuffer()

▾ Sunlit zone — Low / medium · no exploitation signal

Depth score3/ 100 · Minimal

impact 2.8 · likelihood 0 · exploitation 0

⚡ Agent-ready:Raw markdown ↗JSON ↗

Proof of concept

Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.

…

Published

Sep 4, 2025

Updated

Oct 15, 2026

CVSS

—

Vendor

Linux

Product

Linux

CWE

—

Depth score

3 · Minimal

EPSS

0.19% · p9

Platforms

—

Source

CVEORG

Vector

—

EPSS history

Exploit-prediction probability, daily snapshots since Oct 15.

0.2% → 0.2%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

3 events · 406 days

Sep 4, 2025Published
Disclosed via CVEORG
Oct 15, 2026Record revised
Last analysed / modified upstream
Oct 15, 2026EPSS first tracked
0.2%

Linux #cve.org

Affected

Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 5c3f5a25c62230b7965804ce7a2e9305c3ca3961
Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < cbe740de32bb0fb7a5213731ff5f26ea6718fca3
Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 806f85bdd3a60187c21437fc51baace11f659f35
Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 2828a433c7d7a05b6f27c8148502095101dd0b09
Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 248b2aab9b2af5ecf89d9d7955a2ff20c4b4a399
Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 523b84dc7ccea9c4d79126d6ed1cf9033cf83b05
Linux 2.6.12

Full technical detail▾

Overview

In the Linux kernel, the following vulnerability has been resolved:

fbdev: fix potential buffer overflow in do_register_framebuffer()

The current implementation may lead to buffer overflow when:

Unregistration creates NULL gaps in registered_fb[]
All array slots become occupied despite num_registered_fb < FB_MAX
The registration loop exceeds array bounds

Add boundary check to prevent registered_fb[FB_MAX] access.

Affected

Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 5c3f5a25c62230b7965804ce7a2e9305c3ca3961
Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < cbe740de32bb0fb7a5213731ff5f26ea6718fca3
Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 806f85bdd3a60187c21437fc51baace11f659f35
Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 2828a433c7d7a05b6f27c8148502095101dd0b09
Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 248b2aab9b2af5ecf89d9d7955a2ff20c4b4a399
Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 523b84dc7ccea9c4d79126d6ed1cf9033cf83b05
Linux 2.6.12

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

References

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#cve.org