In the Linux kernel, the following vulnerability has been resolved:
vsock: remove vsock from connected table when connect is interrupted by a signal
vsock_connect() expects that the socket could already be in the TCP_ESTABLISHED state when the connecting task wakes up with a signal pending. If this happens the socket will be in the connected table, and it is not removed when the socket state is reset. In this situation it's common for the process to retry connect(), and if the connection is successful the socket will be added to the connected table a second time, corrupting the list.
Prevent this by calling vsock_remove_connected() if a signal is received while waiting for a connection. This is harmless if the socket is not in the connected table, and if it is in the table then removing it will prevent list corruption from a double add.
Note for backporting: this patch requires d5afa82c977e ("vsock: correct removal of socket from the list"), which is in all current stable trees except 4.9.y.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernelUpgrade kernel-livepatch-5.10.102-99.473Upgrade perf-debuginfoUpgrade kernel-debuginfoUpgrade kernel-develUpgrade perfUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-livepatch-4.14.268-205.500Upgrade kernel-tools-develUpgrade kernel-tools-debuginfoUpgrade python-perfUpgrade kernel-debuginfo-common-x86_64Upgrade bpftool-debuginfoUpgrade kernel-toolsUpgrade python-perf-debuginfoUpgrade kernel-headersUpgrade bpftool | Dec 12, 2024 | Jul 16, 2024 |
| Debian | — | Upgrade linux | Jul 30, 2024 | Jul 30, 2024 |
| Huawei Euleros 2_0_sp12 | — | Upgrade kernel-toolsUpgrade kernel-abi-stablelistsUpgrade kernel-tools-libsUpgrade kernelUpgrade python3-perfUpgrade bpftool | Oct 9, 2024 | Jul 16, 2024 |
| Huawei Euleros 2_0_sp9 | — | Upgrade kernelUpgrade kernel-toolsUpgrade kernel-tools-libsUpgrade python3-perf | Oct 8, 2024 | Jul 16, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Jul 16, 2024 |
| Ubuntu | — | Upgrade linux-gcp-5.4Upgrade linux-aws-5.4Upgrade linux-gkeopUpgrade linux-azure-fipsUpgrade linux-aws-hweUpgrade linux-oracleUpgrade linux-iotUpgrade linux-ibmUpgrade linux-hweUpgrade linuxUpgrade linux-gcp-4.15Upgrade linux-hwe-5.4Upgrade linux-aws-fipsUpgrade linux-ibm-5.4Upgrade linux-gcp-fipsUpgrade linux-gcpUpgrade linux-intel-iotg-5.15Upgrade linux-kvmUpgrade linux-azureUpgrade linux-azure-5.4Upgrade linux-azure-4.15Upgrade linux-raspi-5.4Upgrade linux-oracle-5.4Upgrade linux-awsUpgrade linux-bluefieldUpgrade linux-raspiUpgrade linux-fips | Nov 19, 2024 | Jul 16, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Jul 16, 2024 |
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