In the Linux kernel, the following vulnerability has been resolved:
rxrpc: Fix a race between socket set up and I/O thread creation
In rxrpc_open_socket(), it sets up the socket and then sets up the I/O thread that will handle it. This is a problem, however, as there's a gap between the two phases in which a packet may come into rxrpc_encap_rcv() from the UDP packet but we oops when trying to wake the not-yet created I/O thread.
As a quick fix, just make rxrpc_encap_rcv() discard the packet if there's no I/O thread yet.
A better, but more intrusive fix would perhaps be to rearrange things such that the socket creation is done by the I/O thread.
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade kernel-rt-64k-debug-modulesUpgrade kernel-cross-headersUpgrade kernel-zfcpdump-modulesUpgrade kernel-rt-modulesUpgrade kernel-64k-debug-modules-extraUpgrade kernel-headersUpgrade kernel-uki-virt-addonsUpgrade kernel-rt-64k-debug-coreUpgrade kernel-rt-64k-debug-develUpgrade kernel-64k-devel-matchedUpgrade kernel-rt-64kUpgrade libperfUpgrade kernel-rt-64k-modules-extraUpgrade kernelUpgrade kernel-zfcpdump-modules-coreUpgrade kernel-zfcpdump-coreUpgrade kernel-abi-stablelistsUpgrade kernel-rt-64k-modules-coreUpgrade kernel-debug-modules-extraUpgrade kernel-64k-debugUpgrade kernel-rt-modules-coreUpgrade rvUpgrade kernel-64k-debug-devel-matchedUpgrade kernel-debug-devel-matchedUpgrade perfUpgrade kernel-rtUpgrade kernel-64k-coreUpgrade kernel-zfcpdump-devel-matchedUpgrade kernel-tools-libs-develUpgrade kernel-rt-modules-extraUpgrade kernel-64k-debug-coreUpgrade kernel-devel-matchedUpgrade kernel-rt-64k-modulesUpgrade kernel-toolsUpgrade kernel-64k-debug-modules-coreUpgrade kernel-rt-debugUpgrade kernel-debug-modules-coreUpgrade kernel-modules-extraUpgrade kernel-64k-modules-extraUpgrade kernel-debugUpgrade kernel-rt-debug-develUpgrade rtlaUpgrade kernel-rt-64k-debug-modules-extraUpgrade kernel-docUpgrade kernel-modules-coreUpgrade kernel-64k-modules-coreUpgrade kernel-rt-develUpgrade kernel-rt-coreUpgrade python3-perfUpgrade kernel-tools-libsUpgrade kernel-rt-64k-debug-modules-coreUpgrade kernel-64k-debug-develUpgrade kernel-rt-debug-modules-coreUpgrade kernel-64k-develUpgrade kernel-coreUpgrade kernel-rt-64k-coreUpgrade kernel-uki-virtUpgrade kernel-modulesUpgrade kernel-zfcpdump-develUpgrade kernel-debug-coreUpgrade kernel-debug-uki-virtUpgrade kernel-develUpgrade kernel-debug-develUpgrade kernel-rt-debug-modulesUpgrade kernel-rt-debug-modules-extraUpgrade kernel-zfcpdumpUpgrade kernel-rt-64k-debugUpgrade kernel-64k-modulesUpgrade kernel-rt-debug-coreUpgrade kernel-debug-modulesUpgrade kernel-rt-64k-develUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-64k-debug-modulesUpgrade kernel-64k | Nov 20, 2025 | Nov 11, 2025 |
| Debian | — | Upgrade linux | Jul 27, 2026 | Jul 27, 2026 |
| Oracle_linux | — | Upgrade kernel | Nov 28, 2025 | Oct 21, 2024 |
| Redhat_linux | — | Upgrade kernel-rtNo solution existsUpgrade kernel | Jul 9, 2025 | Oct 21, 2024 |
| Rocky_linux | — | Upgrade kernel-uki-virtUpgrade kernel-modulesUpgrade kernel-tools-libsUpgrade kernel-zfcpdump-devel-matchedUpgrade kernel-rt-develUpgrade kernel-debug-debuginfoUpgrade perfUpgrade kernel-modules-extraUpgrade kernel-debugUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-zfcpdump-develUpgrade kernel-debug-modules-coreUpgrade kernel-debug-coreUpgrade kernel-rt-debug-coreUpgrade python3-perf-debuginfoUpgrade kernel-develUpgrade kernel-debug-modulesUpgrade kernel-rt-debugUpgrade kernel-rt-debug-debuginfoUpgrade kernel-zfcpdumpUpgrade rtlaUpgrade kernel-debug-uki-virtUpgrade kernel-tools-debuginfoUpgrade kernel-debug-develUpgrade kernel-debuginfoUpgrade kernel-rt-debug-develUpgrade kernel-rt-coreUpgrade kernel-rt-debug-modulesUpgrade kernel-coreUpgrade python3-perfUpgrade kernel-rt-modulesUpgrade kernel-debug-devel-matchedUpgrade kernel-rt-debuginfoUpgrade kernel-rt-modules-extraUpgrade perf-debuginfoUpgrade kernel-zfcpdump-modulesUpgrade kernel-devel-matchedUpgrade kernel-uki-virt-addonsUpgrade kernel-debuginfo-common-s390xUpgrade kernel-rt-debug-modules-extraUpgrade libperf-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-rtUpgrade kernel-modules-coreUpgrade libperfUpgrade kernel-zfcpdump-coreUpgrade kernel-rt-debug-modules-coreUpgrade kernelUpgrade rvUpgrade kernel-zfcpdump-debuginfoUpgrade kernel-toolsUpgrade kernel-zfcpdump-modules-coreUpgrade kernel-rt-modules-coreUpgrade kernel-debug-modules-extraUpgrade kernel-tools-libs-devel | Feb 5, 2026 | Nov 21, 2025 |
| Ubuntu | — | Upgrade linux-image-6.11.0-18-generic-64kUpgrade linux-image-virtualUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-nvidia-64k-6.8Upgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-6.8.0-54-lowlatencyUpgrade linux-image-gkeUpgrade linux-image-6.8.0-57-genericUpgrade linux-image-awsUpgrade linux-image-oem-22.04dUpgrade linux-image-6.11.0-1009-awsUpgrade linux-image-gcp-lts-24.04Upgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-nvidia-64kUpgrade linux-image-6.8.0-1024-oemUpgrade linux-image-6.8.0-1020-oracle-64kUpgrade linux-image-oem-24.04Upgrade linux-image-aws-lts-24.04Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-6.8.0-1025-azureUpgrade linux-image-6.11.0-1008-raspiUpgrade linux-image-oracleUpgrade linux-image-nvidia-6.8Upgrade linux-image-6.8.0-1020-oracleUpgrade linux-image-6.11.0-1010-lowlatency-64kUpgrade linux-image-6.11.0-1015-oemUpgrade linux-image-realtimeUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-6.8.0-1019-raspiUpgrade linux-image-6.8.0-1022-nvidia-64kUpgrade linux-image-kvmUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-gcp-64kUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-6.8.0-1006-gkeopUpgrade linux-image-6.8.0-1022-nvidia-lowlatency-64kUpgrade linux-image-6.8.0-1024-gcpUpgrade linux-image-6.11.0-1010-lowlatencyUpgrade linux-image-azure-fdeUpgrade linux-image-6.8.0-1019-gkeUpgrade linux-image-6.11.0-1005-realtimeUpgrade linux-image-6.11.0-1011-oracle-64kUpgrade linux-image-6.11.0-18-genericUpgrade linux-image-azure-fde-lts-24.04Upgrade linux-image-6.8.0-1022-nvidia-lowlatencyUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-oracle-lts-24.04Upgrade linux-image-6.8.0-1022-nvidiaUpgrade linux-image-6.11.0-1011-oracleUpgrade linux-image-6.8.0-1023-awsUpgrade linux-image-genericUpgrade linux-image-generic-64kUpgrade linux-image-6.8.0-1025-azure-fdeUpgrade linux-image-gkeopUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-nvidiaUpgrade linux-image-6.8.0-54-generic-64kUpgrade linux-image-ibm-classicUpgrade linux-image-oracle-64kUpgrade linux-image-6.11.0-1009-azure-fdeUpgrade linux-image-6.8.0-54-lowlatency-64kUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-6.8.0-57-generic-64kUpgrade linux-image-azure-lts-24.04Upgrade linux-image-6.8.0-54-genericUpgrade linux-image-gcpUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-generic-lpaeUpgrade linux-image-6.11.0-1009-azureUpgrade linux-image-oem-22.04Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-oem-24.04aUpgrade linux-image-realtime-hwe-24.04Upgrade linux-image-ibmUpgrade linux-image-oem-22.04aUpgrade linux-image-lowlatencyUpgrade linux-image-oem-24.04bUpgrade linux-image-lowlatency-64kUpgrade linux-image-azureUpgrade linux-image-raspiUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-oem-22.04cUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-oem-22.04bUpgrade linux-image-6.8.0-1024-gcp-64kUpgrade linux-image-gkeop-6.8Upgrade linux-image-6.8.0-1022-ibmUpgrade linux-image-6.11.0-1009-gcp | Feb 20, 2025 | Oct 21, 2024 |
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