In the Linux kernel, the following vulnerability has been resolved:
io_uring/tctx: work around xa_store() allocation error issue
syzbot triggered the following WARN_ON:
WARNING: CPU: 0 PID: 16 at io_uring/tctx.c:51 __io_uring_free+0xfa/0x140 io_uring/tctx.c:51
which is the
WARN_ON_ONCE(!xa_empty(&tctx->xa));
sanity check in __io_uring_free() when a io_uring_task is going through its final put. The syzbot test case includes injecting memory allocation failures, and it very much looks like xa_store() can fail one of its memory allocations and end up with ->head being non-NULL even though no entries exist in the xarray.
Until this issue gets sorted out, work around it by attempting to iterate entries in our xarray, and WARN_ON_ONCE() if one is found.
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_2023 | — | Upgrade kernelUpgrade kernel-headersUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-debuginfoUpgrade kernel-libbpf-staticUpgrade kernel-libbpfUpgrade kernel-modules-extraUpgrade kernel-tools-debuginfoUpgrade kernel-livepatch-6.1.124-134.200Upgrade kernel-libbpf-develUpgrade kernel-develUpgrade python3-perfUpgrade bpftoolUpgrade kernel-tools-develUpgrade perf-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-modules-extra-commonUpgrade bpftool-debuginfoUpgrade perfUpgrade kernel-toolsUpgrade python3-perf-debuginfo | Mar 27, 2025 | Dec 27, 2024 |
| Debian | — | Upgrade linux-6.1Upgrade linux | Jan 13, 2025 | Dec 27, 2024 |
| Huawei Euleros 2_0_sp11 | — | Upgrade kernel-abi-stablelistsUpgrade kernel-tools-libsUpgrade kernelUpgrade bpftoolUpgrade kernel-toolsUpgrade python3-perf | Apr 11, 2025 | Dec 27, 2024 |
| Huawei Euleros 2_0_sp12 | — | Upgrade kernelUpgrade kernel-abi-stablelistsUpgrade kernel-toolsUpgrade bpftoolUpgrade kernel-tools-libsUpgrade python3-perf | Mar 19, 2025 | Dec 27, 2024 |
| Huawei Euleros 2_0_sp13 | — | Upgrade kernel-tools-libsUpgrade kernelUpgrade bpftoolUpgrade kernel-toolsUpgrade kernel-abi-stablelistsUpgrade python3-perf | Apr 1, 2025 | Dec 27, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Dec 27, 2024 |
| Ubuntu | — | Upgrade linux-image-genericUpgrade linux-image-aws-fipsUpgrade linux-image-gcp-fips-5.15Upgrade linux-image-6.11.0-1010-raspiUpgrade linux-image-5.15.0-1112-gcp-fipsUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-aws-lts-24.04Upgrade linux-image-generic-lpae-5.15Upgrade linux-image-intel-iotgUpgrade linux-image-6.8.0-58-genericUpgrade linux-image-aws-5.15Upgrade linux-image-azure-fips-5.15Upgrade linux-image-gkeUpgrade linux-image-nvidia-6.8Upgrade linux-image-6.11.0-1017-oemUpgrade linux-image-oem-20.04Upgrade linux-image-oracle-lts-22.04Upgrade linux-image-oem-22.04dUpgrade linux-image-6.8.0-1028-gcp-64kUpgrade linux-image-5.15.0-186-fipsUpgrade linux-image-azureUpgrade linux-image-azure-5.15Upgrade linux-image-lowlatency-64kUpgrade linux-image-lowlatency-64k-5.15Upgrade linux-image-gkeopUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-azure-fde-lts-22.04Upgrade linux-image-gcp-lts-22.04Upgrade linux-image-generic-5.15Upgrade linux-image-5.15.0-1104-kvmUpgrade linux-image-realtime-5.15Upgrade linux-image-6.8.0-1024-oracle-64kUpgrade linux-image-kvm-5.15Upgrade linux-image-oem-22.04Upgrade linux-image-6.8.0-1024-oracleUpgrade linux-image-aws-fips-5.15Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-6.8.0-1026-nvidia-64kUpgrade linux-image-5.15.0-1117-azure-fipsUpgrade linux-image-6.11.0-1011-awsUpgrade linux-image-nvidia-tegra-rtUpgrade linux-image-5.15.0-1107-intel-iotgUpgrade linux-image-xilinx-zynqmp-5.15Upgrade linux-image-generic-64k-5.15Upgrade linux-image-nvidia-tegra-igx-5.15Upgrade linux-image-5.15.0-1107-nvidiaUpgrade linux-image-6.8.0-2023-raspi-realtimeUpgrade linux-image-azure-lts-22.04Upgrade linux-image-nvidia-tegra-igx-rt-5.15Upgrade linux-image-gkeop-5.15Upgrade linux-image-raspiUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-6.8.0-1027-azure-fdeUpgrade linux-image-6.8.0-1026-nvidia-lowlatencyUpgrade linux-image-nvidia-5.15Upgrade linux-image-virtual-5.15Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-6.8.0-1023-gkeUpgrade linux-image-6.8.0-1028-raspiUpgrade linux-image-6.8.0-1026-nvidia-lowlatency-64kUpgrade linux-image-ibm-5.15Upgrade linux-image-6.8.0-1010-gkeopUpgrade linux-image-5.15.0-1106-ibmUpgrade linux-image-fipsUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-intelUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-5.15.0-1053-nvidia-tegra-igxUpgrade linux-image-6.8.0-1027-azureUpgrade linux-image-intel-iot-realtimeUpgrade linux-image-5.15.0-1108-gkeUpgrade linux-image-nvidia-tegra-5.15Upgrade linux-image-lowlatency-5.15Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-realtimeUpgrade linux-image-5.15.0-1075-xilinx-zynqmpUpgrade linux-image-oracleUpgrade linux-image-azure-fde-5.15Upgrade linux-image-5.15.0-1117-azureUpgrade linux-image-6.11.0-1011-lowlatencyUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-oracle-lts-24.04Upgrade linux-image-5.15.0-1107-nvidia-lowlatencyUpgrade linux-image-aws-64k-5.15Upgrade linux-image-azure-cvmUpgrade linux-image-generic-hwe-20.04Upgrade linux-image-6.8.0-1024-ibmUpgrade linux-image-intel-iotg-5.15Upgrade linux-image-nvidia-tegraUpgrade linux-image-5.15.0-1095-gkeopUpgrade linux-image-5.15.0-184-lowlatency-64kUpgrade linux-image-6.11.0-21-genericUpgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-nvidia-lowlatency-5.15Upgrade linux-image-gcp-64kUpgrade linux-image-oem-24.04Upgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-6.11.0-1011-gcpUpgrade linux-image-6.8.0-1026-nvidiaUpgrade linux-image-6.11.0-21-generic-64kUpgrade linux-image-5.15.0-1064-nvidia-tegraUpgrade linux-image-5.15.0-186-genericUpgrade linux-image-aws-64k-lts-22.04Upgrade linux-image-ibm-classicUpgrade linux-image-6.8.0-58-lowlatency-64kUpgrade linux-image-5.15.0-1112-gcpUpgrade linux-image-nvidia-tegra-igxUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-realtime-hwe-24.04Upgrade linux-image-6.11.0-1012-azure-fdeUpgrade linux-image-intel-iot-realtime-5.15Upgrade linux-image-oem-22.04bUpgrade linux-image-nvidia-64kUpgrade linux-image-6.8.0-58-lowlatencyUpgrade linux-image-fips-5.15Upgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-nvidia-tegra-rt-5.15Upgrade linux-image-azure-fipsUpgrade linux-image-5.15.0-1112-awsUpgrade linux-image-nvidia-tegra-igx-rtUpgrade linux-image-oem-20.04bUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-5.15.0-1117-azure-fdeUpgrade linux-image-gke-5.15Upgrade linux-image-5.15.0-1053-nvidia-tegra-igx-rtUpgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-5.15.0-1111-realtimeUpgrade linux-image-6.11.0-1013-oracleUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-lowlatencyUpgrade linux-image-ibmUpgrade linux-image-6.8.0-1027-awsUpgrade linux-image-azure-fdeUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-oem-22.04aUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-lowlatency-64k-hwe-24.04Upgrade linux-image-6.8.0-1028-gcpUpgrade linux-image-6.11.0-1012-azureUpgrade linux-image-oem-24.04aUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-5.15.0-1112-aws-fipsUpgrade linux-image-generic-64kUpgrade linux-image-gcp-5.15Upgrade linux-image-6.8.0-1014-azure-nvidiaUpgrade linux-image-oem-20.04cUpgrade linux-image-generic-lpaeUpgrade linux-image-5.15.0-186-generic-64kUpgrade linux-image-azure-nvidiaUpgrade linux-image-virtualUpgrade linux-image-6.11.0-1011-gcp-64kUpgrade linux-image-5.15.0-1109-oracleUpgrade linux-image-azure-lts-24.04Upgrade linux-image-virtual-hwe-22.04Upgrade linux-image-oracle-64kUpgrade linux-image-oem-20.04dUpgrade linux-image-5.15.0-186-generic-lpaeUpgrade linux-image-lowlatency-hwe-24.04Upgrade linux-image-aws-lts-22.04Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-oracle-5.15Upgrade linux-image-gcpUpgrade linux-image-gcp-fipsUpgrade linux-image-oem-22.04cUpgrade linux-image-gkeop-6.8Upgrade linux-image-raspi-realtimeUpgrade linux-image-awsUpgrade linux-image-azure-fde-lts-24.04Upgrade linux-image-5.15.0-1112-aws-64kUpgrade linux-image-6.11.0-1013-oracle-64kUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-6.11.0-1007-realtimeUpgrade linux-image-nvidiaUpgrade linux-image-6.11.0-1011-lowlatency-64kUpgrade linux-image-5.15.0-1104-intel-iot-realtimeUpgrade linux-image-kvmUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-6.8.0-1026-oemUpgrade linux-image-6.8.1-1020-realtimeUpgrade linux-image-5.15.0-1064-nvidia-tegra-rtUpgrade linux-image-6.8.0-58-generic-64kUpgrade linux-image-oem-24.04bUpgrade linux-image-5.15.0-184-lowlatency | Mar 28, 2025 | Dec 27, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 29, 2025 | Dec 27, 2024 |
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