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CVE-2021-46981 | Linux Kernel up to 5.4.119/5.10.37/5.11.21/5.12.4 nbd /dev/nbdX nbd_disconnect_and_put null pointer dereference

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CVE-2021-46981 | Linux Kernel up to 5.4.119/5.10.37/5.11.21/5.12.4 nbd /dev/nbdX nbd_disconnect_and_put null pointer dereference

A vulnerability was found in Linux Kernel up to 5.4.119/5.10.37/5.11.21/5.12.4 and classified as critical. Affected by this issue is the function nbd_disconnect_and_put of the file /dev/nbdX of the component nbd. The manipulation leads to null pointer dereference. This vulnerability is handled as CVE-2021-46981. The attack needs to be done within the local network. There is no exploit available. It is recommended to upgrade the affected component.