CVE-2026-63985
In the Linux kernel, the following vulnerability has been resolved: ethtool: eeprom: add more safeties to EEPROM Netlink fallback The Netlink fallback path for…
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | from 5.13 before 5.15.210 from 5.16 before 6.1.176 from 6.2 before 6.6.143 from 6.7 before 6.12.93 from 6.13 before 6.18.35 from 6.19 before 7.0.12 |
Weakness classification
References
- NVD record
- CVE.org record
- https://git.kernel.org/stable/c/0e182689831277faf2ef683573a60474c208f690
- https://git.kernel.org/stable/c/4fe1bc4b3603f621240d5b401742f302190db769
- https://git.kernel.org/stable/c/65674d2489a12b8efd2ca0effb3de1d12224b596
- https://git.kernel.org/stable/c/67cfdd9210b99f260b3e0afeb9525e0acc7be31e
- https://git.kernel.org/stable/c/6ed7ebe22e9c3e3e946b6973c1ce43d3c38aeac1
- https://git.kernel.org/stable/c/d81376053a00865c70b8d8506a1cb93f2943d413
- https://git.kernel.org/stable/c/fd0de51c54fa8474a0ddeedd71c65ad09fada390