CVE-2023-54240

net: ethernet: mtk_eth_soc: fix possible NULL pointer dereference in mtk_hwlro_get_fdir_all()

State: Published
Severity: Not scored
Published: Dec 30, 2025
Updated: May 11, 2026
Reserved: Dec 30, 2025

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd to before 7776591e5ae2befff86579f68916a171971c6aabAffected 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd to before 751b2e22a188b0c306029d094da29b6b8de31430Affected 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd to before 653fbddbdfc6673bba01b13dae5a4384ad8f92ecAffected 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd to before 75f2de75c1182e80708c932418e4895dbc88b68fAffected 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd to before 072324cfab9b96071c0782f51f53cc5aea1e9d5bAffected 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd to before ff5faed5f5487b0fd2b640ba1304f82a5ebaab42Affected 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd to before fe0195fe48f85182bc7e7eabcad925bd3cbc10f5Affected 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd to before e4c79810755f66c9a933ca810da2724133b1165aAffected
LinuxLinux	4.9Affected before 4.9Not affected 4.14.326 through 4.14.Not affected 4.19.295 through 4.19.Not affected 5.4.257 through 5.4.Not affected 5.10.195 through 5.10.Not affected 5.15.132 through 5.15.Not affected 6.1.54 through 6.1.Not affected 6.5.4 through 6.5.*Not affected 6.6 and laterNot affected

Product

Versions

LinuxLinux

7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd to before 7776591e5ae2befff86579f68916a171971c6aabAffected
7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd to before 751b2e22a188b0c306029d094da29b6b8de31430Affected
7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd to before 653fbddbdfc6673bba01b13dae5a4384ad8f92ecAffected
7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd to before 75f2de75c1182e80708c932418e4895dbc88b68fAffected
7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd to before 072324cfab9b96071c0782f51f53cc5aea1e9d5bAffected
7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd to before ff5faed5f5487b0fd2b640ba1304f82a5ebaab42Affected
7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd to before fe0195fe48f85182bc7e7eabcad925bd3cbc10f5Affected
7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd to before e4c79810755f66c9a933ca810da2724133b1165aAffected

LinuxLinux

4.9Affected
before 4.9Not affected
4.14.326 through 4.14.*Not affected
4.19.295 through 4.19.*Not affected
5.4.257 through 5.4.*Not affected
5.10.195 through 5.10.*Not affected
5.15.132 through 5.15.*Not affected
6.1.54 through 6.1.*Not affected
6.5.4 through 6.5.*Not affected
6.6 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.