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
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-tools-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-develUpgrade kernel-toolsUpgrade kernelUpgrade bpftoolUpgrade python-perfUpgrade python-perf-debuginfoUpgrade perf-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-debuginfoUpgrade kernel-tools-develUpgrade perfUpgrade kernel-headers | Aug 2, 2024 | Feb 28, 2024 |
| Debian | — | Upgrade linux | Jul 30, 2024 | Feb 28, 2024 |
| Huawei Euleros 2_0_sp10 | — | Upgrade kernel-tools-libsUpgrade kernel-abi-stablelistsUpgrade kernel-toolsUpgrade kernelUpgrade python3-perf | May 13, 2024 | Feb 28, 2024 |
| Huawei Euleros 2_0_sp8 | — | Upgrade kernelUpgrade kernel-headersUpgrade python3-perfUpgrade perfUpgrade kernel-tools-libsUpgrade python-perfUpgrade bpftoolUpgrade kernel-toolsUpgrade kernel-devel | Jul 23, 2024 | Feb 28, 2024 |
| Huawei Euleros 2_0_sp9 | — | Upgrade kernelUpgrade python3-perfUpgrade kernel-tools-libsUpgrade kernel-tools | Jul 17, 2024 | Feb 28, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Feb 28, 2024 |
| Suse | — | Upgrade kernel-develUpgrade kernel-devel-azureUpgrade kernel-macrosUpgrade kernel-syms-azureUpgrade kernel-default-develUpgrade kernel-symsUpgrade kernel-default-extraUpgrade kernel-sourceUpgrade kernel-source-azureUpgrade kernel-default-baseUpgrade kernel-azureUpgrade kernel-obs-buildUpgrade kernel-azure-baseUpgrade kernel-docsUpgrade kernel-defaultUpgrade kernel-default-manUpgrade kernel-azure-devel | Aug 9, 2024 | Feb 28, 2024 |
| Ubuntu | — | No solution exists | Jun 26, 2025 | Feb 28, 2024 |
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