Description
In the Linux kernel, the following vulnerability has been resolved: net/sched: sch_qfq: Fix race condition on qfq_aggregate A race condition can occur when 'agg' is modified in qfq_change_agg (called during qfq_enqueue) while other threads access it concurrently. For example, qfq_dump_class may trigger a NULL dereference, and qfq_delete_class may cause a use-after-free. This patch addresses the issue by: 1. Moved qfq_destroy_class into the critical section. 2. Added sch_tree_lock protection to qfq_dump_class and qfq_dump_class_stats.
Details
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| linux | — | 6.8.0-85.85 |
| linux-allwinner-5.19 | — | — |
| linux-aws | — | 6.8.0-1040.42 |
| linux-aws-5.0 | — | — |
| linux-aws-5.11 | — | — |
| linux-aws-5.13 | — | — |
| linux-aws-5.15 | — | 5.15.0-1093.100~20.04.1 |
| linux-aws-5.19 | — | — |
| linux-aws-5.3 | — | — |
| linux-aws-5.4 | — | 5.4.0-1151.161~18.04.1 |
| linux-aws-5.8 | — | — |
| linux-aws-6.14 | — | 6.14.0-1014.14~24.04.1 |
| linux-aws-6.2 | — | — |
| linux-aws-6.5 | — | — |
| linux-aws-6.8 | — | 6.8.0-1040.42~22.04.1 |
| linux-aws-fips | — | 6.8.0-1040.42+fips1 |
| linux-aws-hwe | — | 4.15.0-1185.198~16.04.1 |
| linux-azure | — | 6.8.0-1040.46 |
| linux-azure-4.15 | — | 4.15.0-1193.208 |
| linux-azure-5.11 | — | — |
| linux-azure-5.13 | — | — |
| linux-azure-5.15 | — | 5.15.0-1097.106~20.04.1 |
| linux-azure-5.19 | — | — |
| linux-azure-5.3 | — | — |
| linux-azure-5.4 | — | 5.4.0-1154.161~18.04.1 |
| linux-azure-5.8 | — | — |
| linux-azure-6.11 | — | — |
| linux-azure-6.14 | — | 6.14.0-1013.13~24.04.1 |
| linux-azure-6.2 | — | — |
| linux-azure-6.5 | — | — |
| linux-azure-6.8 | — | 6.8.0-1040.46~22.04.1 |
| linux-azure-edge | — | — |
| linux-azure-fde | — | — |
| linux-azure-fde-5.19 | — | — |
| linux-azure-fde-6.17 | — | — |
| linux-azure-fde-6.2 | — | — |
| linux-azure-fips | — | 6.8.0-1040.46+fips1 |
| linux-azure-nvidia | — | 6.8.0-1025.27 |
| linux-azure-nvidia-6.14 | — | 6.14.0-1007.7 |
| linux-bluefield | — | — |
| linux-fips | — | 6.8.0-85.85+fips1 |
| linux-gcp | — | 6.8.0-1041.43 |
| linux-gcp-4.15 | — | 4.15.0-1178.195 |
| linux-gcp-5.11 | — | — |
| linux-gcp-5.13 | — | — |
| linux-gcp-5.15 | — | 5.15.0-1093.102~20.04.1 |
| linux-gcp-5.19 | — | — |
| linux-gcp-5.3 | — | — |
| linux-gcp-5.4 | — | 5.4.0-1154.163~18.04.1 |
| linux-gcp-5.8 | — | — |
| linux-gcp-6.11 | — | — |
| linux-gcp-6.14 | — | 6.14.0-1017.18~24.04.1 |
| linux-gcp-6.2 | — | — |
| linux-gcp-6.5 | — | — |
| linux-gcp-6.8 | — | 6.8.0-1041.43~22.04.1 |
| linux-gcp-fips | — | 6.8.0-1041.43+fips1 |
| linux-gke | — | 6.8.0-1037.41 |
| linux-gke-4.15 | — | — |
| linux-gke-5.15 | — | — |
| linux-gke-5.4 | — | — |
| linux-gkeop | — | 6.8.0-1024.26 |
| linux-gkeop-5.15 | — | — |
| linux-gkeop-5.4 | — | — |
| linux-hwe | — | — |
| linux-hwe-5.11 | — | — |
| linux-hwe-5.13 | — | — |
| linux-hwe-5.15 | — | 5.15.0-157.167~20.04.1 |
| linux-hwe-5.19 | — | — |
| linux-hwe-5.4 | — | 5.4.0-222.242~18.04.1 |
| linux-hwe-5.8 | — | — |
| linux-hwe-6.11 | — | — |
| linux-hwe-6.2 | — | — |
| linux-hwe-6.5 | — | — |
| linux-hwe-6.8 | — | 6.8.0-85.85~22.04.1 |
| linux-hwe-edge | — | — |
| linux-ibm | — | 6.8.0-1038.38 |
| linux-ibm-5.15 | — | 5.15.0-1087.90~20.04.1 |
| linux-ibm-5.4 | — | 5.4.0-1097.102~18.04.1 |
| linux-ibm-6.8 | — | 6.8.0-1038.38~22.04.1 |
| linux-intel | — | — |
| linux-intel-5.13 | — | — |
| linux-intel-iot-realtime | — | 5.15.0-1086.88 |
| linux-intel-iotg | — | 5.15.0-1088.94 |
| linux-intel-iotg-5.15 | — | 5.15.0-1088.94~20.04.1 |
| linux-iot | — | 5.4.0-1055.58 |
| linux-kvm | — | 5.15.0-1089.94 |
| linux-lowlatency | — | 6.8.0-85.85.1 |
| linux-lowlatency-hwe-5.15 | — | 5.15.0-157.167~20.04.1 |
| linux-lowlatency-hwe-5.19 | — | — |
| linux-lowlatency-hwe-6.11 | — | — |
| linux-lowlatency-hwe-6.2 | — | — |
| linux-lowlatency-hwe-6.5 | — | — |
| linux-lowlatency-hwe-6.8 | — | 6.8.0-85.85.1~22.04.1 |
| linux-lts-xenial | — | — |
| linux-nvidia | — | 6.8.0-1040.43 |
| linux-nvidia-6.11 | — | — |
| linux-nvidia-6.2 | — | — |
| linux-nvidia-6.5 | — | — |
| linux-nvidia-6.8 | — | 6.8.0-1040.43~22.04.1 |
| linux-nvidia-lowlatency | — | 6.8.0-1040.43.1 |
| linux-nvidia-tegra | — | 6.8.0-1012.12 |
| linux-nvidia-tegra-5.15 | — | 5.15.0-1046.46~20.04.1 |
| linux-nvidia-tegra-igx | — | 5.15.0-1035.35 |
| linux-oem | — | — |
| linux-oem-5.10 | — | — |
| linux-oem-5.13 | — | — |
| linux-oem-5.14 | — | — |
| linux-oem-5.17 | — | — |
| linux-oem-5.6 | — | — |
| linux-oem-6.0 | — | — |
| linux-oem-6.1 | — | — |
| linux-oem-6.11 | — | — |
| linux-oem-6.14 | — | 6.14.0-1013.13 |
| linux-oem-6.5 | — | — |
| linux-oem-6.8 | — | — |
| linux-oracle | — | 6.8.0-1037.38 |
| linux-oracle-5.0 | — | — |
| linux-oracle-5.11 | — | — |
| linux-oracle-5.13 | — | — |
| linux-oracle-5.15 | — | 5.15.0-1091.97~20.04.1 |
| linux-oracle-5.3 | — | — |
| linux-oracle-5.4 | — | 5.4.0-1149.159~18.04.1 |
| linux-oracle-5.8 | — | — |
| linux-oracle-6.14 | — | 6.14.0-1014.14~24.04.1 |
| linux-oracle-6.5 | — | — |
| linux-oracle-6.8 | — | 6.8.0-1037.38~22.04.1 |
| linux-raspi | — | 6.8.0-1040.44 |
| linux-raspi-5.4 | — | 5.4.0-1134.147~18.04.1 |
| linux-raspi-realtime | — | 6.8.0-2031.32 |
| linux-raspi2 | — | — |
| linux-realtime | — | 6.8.1-1035.36 |
| linux-realtime-6.14 | — | 6.14.0-1013.13~24.04.1 |
| linux-realtime-6.8 | — | 6.8.1-1035.36~22.04.1 |
| linux-riscv | — | — |
| linux-riscv-5.11 | — | — |
| linux-riscv-5.15 | — | 5.15.0-1088.92~20.04.1 |
| linux-riscv-5.19 | — | — |
| linux-riscv-5.8 | — | — |
| linux-riscv-6.14 | — | 6.14.0-33.33.1~24.04.1 |
| linux-riscv-6.5 | — | — |
| linux-riscv-6.8 | — | 6.8.0-86.87~22.04.1 |
| linux-starfive-5.19 | — | — |
| linux-starfive-6.2 | — | — |
| linux-starfive-6.5 | — | — |
| linux-xilinx | — | 6.8.0-1018.19 |
| linux-xilinx-zynqmp | — | 5.15.0-1057.61 |
References
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