Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: ethernet: mtk_eth_soc: fix possible NULL pointer dereference in mtk_hwlro_get_fdir_all() rule_locs is allocated in ethtool_get_rxnfc and the size is determined by rule_cnt from user space. So rule_cnt needs to be check before using rule_locs to avoid NULL pointer dereference.
References
- https://git.kernel.org/stable/c/072324cfab9b96071c0782f51f53cc5aea1e9d5b
- https://git.kernel.org/stable/c/653fbddbdfc6673bba01b13dae5a4384ad8f92ec
- https://git.kernel.org/stable/c/751b2e22a188b0c306029d094da29b6b8de31430
- https://git.kernel.org/stable/c/75f2de75c1182e80708c932418e4895dbc88b68f
- https://git.kernel.org/stable/c/7776591e5ae2befff86579f68916a171971c6aab
- https://git.kernel.org/stable/c/e4c79810755f66c9a933ca810da2724133b1165a
- https://git.kernel.org/stable/c/fe0195fe48f85182bc7e7eabcad925bd3cbc10f5
- https://git.kernel.org/stable/c/ff5faed5f5487b0fd2b640ba1304f82a5ebaab42
FAQ
What is CVE-2023-54240?
CVE-2023-54240 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: net: ethernet: mtk_eth_soc: fix possible NULL pointer dereference in mtk_hwlro_get_fdir_all() rule_locs is allocated in ethtool_ge...
How severe is CVE-2023-54240?
CVSS scoring is not yet available for CVE-2023-54240. Check NVD for updates.
Is there a patch for CVE-2023-54240?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.