CVE-2021-47024 (GCVE-0-2021-47024)
Vulnerability from cvelistv5
Published
2024-02-28 08:13
Modified
2025-05-04 12:40
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: free queued packets when closing socket As reported by syzbot [1], there is a memory leak while closing the socket. We partially solved this issue with commit ac03046ece2b ("vsock/virtio: free packets during the socket release"), but we forgot to drain the RX queue when the socket is definitely closed by the scheduled work. To avoid future issues, let's use the new virtio_transport_remove_sock() to drain the RX queue before removing the socket from the af_vsock lists calling vsock_remove_sock(). [1] https://syzkaller.appspot.com/bug?extid=24452624fc4c571eedd9
References
Impacted products
Vendor Product Version
Linux Linux Version: ac03046ece2b158ebd204dfc4896fd9f39f0e6c8
Version: ac03046ece2b158ebd204dfc4896fd9f39f0e6c8
Version: ac03046ece2b158ebd204dfc4896fd9f39f0e6c8
Version: ac03046ece2b158ebd204dfc4896fd9f39f0e6c8
Version: 4ea082cd3c400cd5bb36a7beb7e441bf3e29350d
Version: 4e539fa2dec4db3405e47002f2878aa4a99eb68b
Version: 4af8a327aeba102aaa9b78f3451f725bc590b237
Version: 51adb8ebe8c1d80528fc2ea863cfea9d32d2c52b
Version: 7d29c9ad0ed525c1b10e29cfca4fb1eece1e93fb
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      "dataVersion": "5.1"
    }
  }
}


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