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CVE-2023-53495

net: ethernet: mvpp2_main: fix possible OOB write in mvpp2_ethtool_get_rxnfc()

EPSS 0.1%
In the Linux kernel, the following vulnerability has been resolved: net: ethernet: mvpp2_main: fix possible OOB write in mvpp2_ethtool_get_rxnfc() rules 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 rules to avoid OOB writing or NULL pointer dereference.
Affected products
Linux · Linux

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References
https://git.kernel.org/stable/c/349638f7e5d3c7d328565587bb7b0454bbee02e2https://git.kernel.org/stable/c/51fe0a470543f345e3c62b6798929de3ddcedc1dhttps://git.kernel.org/stable/c/5bb09dddc724c5f7c4dc6dd3bfebd685eecd93e8https://git.kernel.org/stable/c/61054a8ddb176b155a8f2bacdfefb3727187f5d9https://git.kernel.org/stable/c/625b70d31dd4df4b96b3ddcbe251debb33bd67f5https://git.kernel.org/stable/c/ba6673824efa3dc198b04a54e69dce480066d7d9