cve-2021-47559
Vulnerability from cvelistv5
Published
2024-05-24 15:12
Modified
2024-08-04 05:39
Severity
Summary
net/smc: Fix NULL pointer dereferencing in smc_vlan_by_tcpsk()
Impacted products
VendorProduct
LinuxLinux
LinuxLinux
Show details on NVD website


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                "timestamp": "2024-05-24T19:14:31.432418Z",
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: Fix NULL pointer dereferencing in smc_vlan_by_tcpsk()\n\nCoverity reports a possible NULL dereferencing problem:\n\nin smc_vlan_by_tcpsk():\n6. returned_null: netdev_lower_get_next returns NULL (checked 29 out of 30 times).\n7. var_assigned: Assigning: ndev = NULL return value from netdev_lower_get_next.\n1623                ndev = (struct net_device *)netdev_lower_get_next(ndev, \u0026lower);\nCID 1468509 (#1 of 1): Dereference null return value (NULL_RETURNS)\n8. dereference: Dereferencing a pointer that might be NULL ndev when calling is_vlan_dev.\n1624                if (is_vlan_dev(ndev)) {\n\nRemove the manual implementation and use netdev_walk_all_lower_dev() to\niterate over the lower devices. While on it remove an obsolete function\nparameter comment."
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    "datePublished": "2024-05-24T15:12:48.675Z",
    "dateReserved": "2024-05-24T15:11:00.727Z",
    "dateUpdated": "2024-08-04T05:39:59.699Z",
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