ethtool: eeprom: add more safeties to EEPROM Netlink fallback (Linux Linux)

CVE-2026-63985
HIGH 7.8

At a glance

Source
NVD
EPSS
EPSS 0.13 % · percentile 3 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

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.

Weaknesses (CWE)

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 96d971e307cc0e434f96329b42bbd98cfbca07d2 < 0e182689831277faf2ef683573a60474c208f690 ; affected 96d971e307cc0e434f96329b42bbd98cfbca07d2 < 6ed7ebe22e9c3e3e946b6973c1ce43d3c38aeac1 ; affected 96d971e307cc0e434f96329b42bbd98cfbca07d2 < 65674d2489a12b8efd2ca0effb3de1d12224b596 ; affected 96d971e307cc0e434f96329b42bbd98cfbca07d2 < d81376053a00865c70b8d8506a1cb93f2943d413 ; affected 96d971e307cc0e434f96329b42bbd98cfbca07d2 < fd0de51c54fa8474a0ddeedd71c65ad09fada390 ; affected 96d971e307cc0e434f96329b42bbd98cfbca07d2 < 4fe1bc4b3603f621240d5b401742f302190db769
Linux · Linuxaffected 5.13 ; unaffected 0 < 5.13 ; unaffected 5.15.210 ≤ 5.15.* ; unaffected 6.1.176 ≤ 6.1.* ; unaffected 6.6.143 ≤ 6.6.* ; unaffected 6.12.93 ≤ 6.12.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD