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CVE-2023-54240

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

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd before 7776591e5ae2befff86579f68916a171971c6aab; affected 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd before 751b2e22a188b0c306029d094da29b6b8de31430; affected 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd before 653fbddbdfc6673bba01b13dae5a4384ad8f92ec; affected 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd before 75f2de75c1182e80708c932418e4895dbc88b68f; affected 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd before 072324cfab9b96071c0782f51f53cc5aea1e9d5b; affected 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd before ff5faed5f5487b0fd2b640ba1304f82a5ebaab42; affected 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd before fe0195fe48f85182bc7e7eabcad925bd3cbc10f5; affected 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd before e4c79810755f66c9a933ca810da2724133b1165a
Linux / Linuxaffected 4.9; unaffected 0 before 4.9; unaffected 4.14.326 through 4.14.*; unaffected 4.19.295 through 4.19.*; unaffected 5.4.257 through 5.4.*; unaffected 5.10.195 through 5.10.*; unaffected 5.15.132 through 5.15.*; unaffected 6.1.54 through 6.1.*; unaffected 6.5.4 through 6.5.*; unaffected 6.6 through *

CWE

No CWE identifiers supplied.

References