CVE-2025-38702fbdev: fix potential buffer overflow in do_register_framebuffer()
Updated under an hour ago ()
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It affects Linux and 4 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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 registered_fb[] 2. All array slots become occupied despite num_registered_fb < FB_MAX 3. The registration loop exceeds array bounds Add boundary check to prevent registered_fb[FB_MAX] access.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Not yet received
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
Linux Linux linux:linux (from the name) | from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 5c3f5a25c62230b7965804ce7a2e9305c3ca3961; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before cbe740de32bb0fb7a5213731ff5f26ea6718fca3; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 806f85bdd3a60187c21437fc51baace11f659f35; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 2828a433c7d7a05b6f27c8148502095101dd0b09; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 248b2aab9b2af5ecf89d9d7955a2ff20c4b4a399; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 523b84dc7ccea9c4d79126d6ed1cf9033cf83b05 | CNA record |
Siemens SIMATIC CN 4100 siemens:simatic_cn_4100 (from the name) | before V5.0 | CISA ADP |
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.5 | CISA ADP |
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name) | from V3.1.5 | CISA ADP |
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.5 | CISA ADP |
References
- https://git.kernel.org/stable/c/5c3f5a25c62230b7965804ce7a2e9305c3ca3961
- https://git.kernel.org/stable/c/cbe740de32bb0fb7a5213731ff5f26ea6718fca3
- https://git.kernel.org/stable/c/806f85bdd3a60187c21437fc51baace11f659f35
- https://git.kernel.org/stable/c/2828a433c7d7a05b6f27c8148502095101dd0b09
- https://git.kernel.org/stable/c/248b2aab9b2af5ecf89d9d7955a2ff20c4b4a399
- https://git.kernel.org/stable/c/523b84dc7ccea9c4d79126d6ed1cf9033cf83b05
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.