Answer in brief
CVE-2026-63985 records a High severity (CVSS 7.8) vulnerability in ethtool: eeprom: add more safeties to EEPROM Netlink fallback. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=96d971e307cc0e434f96329b42bbd98cfbca07d2 <0e182689831277faf2ef683573a60474c208f690 || >=96d971e307cc0e434f96329b42bbd98cfbca07d2 <6ed7ebe22e9c3e3e946b6973c1ce43d3c38aeac1 || >=96d971e307cc0e434f96329b42bbd98cfbca07d2 <65674d2489a12b8efd2ca0effb3de1d12224b596 || >=96d971e307cc0e434f96329b42bbd98cfbca07d2 <d81376053a00865c70b8d8506a1cb93f2943d413 || >=96d971e307cc0e434f96329b42bbd98cfbca07d2 <fd0de51c54fa8474a0ddeedd71c65ad09fada390 || >=96d971e307cc0e434f96329b42bbd98cfbca07d2 <4fe1bc4b3603f621240d5b401742f302190db769 || >=96d971e307cc0e434f96329b42bbd98cfbca07d2 <67cfdd9210b99f260b3e0afeb9525e0acc7be31e | 0e182689831277faf2ef683573a60474c208f690, 6ed7ebe22e9c3e3e946b6973c1ce43d3c38aeac1, 65674d2489a12b8efd2ca0effb3de1d12224b596, d81376053a00865c70b8d8506a1cb93f2943d413, fd0de51c54fa8474a0ddeedd71c65ad09fada390, 4fe1bc4b3603f621240d5b401742f302190db769, 67cfdd9210b99f260b3e0afeb9525e0acc7be31e |
| Linux/Linuxgeneric | 5.13 | Not reported |
Published upstream
Jul 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: ethtool: eeprom: add more safeties to EEPROM Netlink fallback The Netlink fallback path for reading module EEPROM (fallback_set_params()) validates that offset < eeprom_len, but does not check that offset + length stays within eeprom_len. The ioctl equivalent (ethtool_get_any_eeprom() in ioctl.c) has always enforced both bounds: if (eeprom.offset + eeprom.len > total_len) return -EINVAL; This could lead to surprises in both drivers and device FW. Add the missing offset + length validation to fallback_set_params(), mirroring the ioctl. Similarly - ethtool core in general, and ethtool_get_any_eeprom() in particular tries to zero-init all buffers passed to the drivers to avoid any extra work of zeroing things out. eeprom_fallback() uses a plain kmalloc(), change it to zalloc.
Quoted source text, attributed separately from HOL analysis.