Description
A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation. Racing a io_uring cancel poll request with a linked timeout can cause a UAF in a hrtimer. We recommend upgrading past commit ef7dfac51d8ed961b742218f526bd589f3900a59 (4716c73b188566865bdd79c3a6709696a224ac04 for 5.10 stable and 0e388fce7aec40992eadee654193cad345d62663 for 5.15 stable).
Details
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| linux | — | 5.15.0-78.85 |
| linux-allwinner-5.19 | — | — |
| linux-aws | — | 5.15.0-1040.45 |
| linux-aws-5.0 | — | — |
| linux-aws-5.11 | — | — |
| linux-aws-5.13 | — | — |
| linux-aws-5.15 | — | 5.15.0-1040.45~20.04.1 |
| linux-aws-5.19 | — | 5.19.0-1029.30~22.04.1 |
| linux-aws-5.3 | — | — |
| linux-aws-5.8 | — | — |
| linux-aws-6.2 | — | — |
| linux-azure | — | 5.15.0-1042.49 |
| linux-azure-5.11 | — | — |
| linux-azure-5.13 | — | — |
| linux-azure-5.15 | — | 5.15.0-1042.49~20.04.1 |
| linux-azure-5.19 | — | — |
| linux-azure-5.3 | — | — |
| linux-azure-5.8 | — | — |
| linux-azure-6.2 | — | — |
| linux-azure-edge | — | — |
| linux-azure-fde | — | 5.15.0-1042.49.1 |
| linux-azure-fde-5.19 | — | — |
| linux-azure-fde-6.2 | — | — |
| linux-bluefield | — | — |
| linux-fips | — | — |
| linux-gcp | — | 5.15.0-1038.46 |
| linux-gcp-5.11 | — | — |
| linux-gcp-5.13 | — | — |
| linux-gcp-5.15 | — | 5.15.0-1038.46~20.04.1 |
| linux-gcp-5.19 | — | 5.19.0-1030.32~22.04.1 |
| linux-gcp-5.3 | — | — |
| linux-gcp-5.8 | — | — |
| linux-gcp-6.2 | — | — |
| linux-gke | — | 5.15.0-1038.43 |
| linux-gke-4.15 | — | — |
| linux-gke-5.15 | — | 5.15.0-1038.43~20.04.1 |
| linux-gke-5.4 | — | — |
| linux-gkeop | — | 5.15.0-1024.29 |
| linux-gkeop-5.15 | — | 5.15.0-1024.29~20.04.1 |
| linux-gkeop-5.4 | — | — |
| linux-hwe | — | — |
| linux-hwe-5.11 | — | — |
| linux-hwe-5.13 | — | — |
| linux-hwe-5.15 | — | 5.15.0-78.85~20.04.1 |
| linux-hwe-5.19 | — | 5.19.0-50.50 |
| linux-hwe-5.8 | — | — |
| linux-hwe-6.2 | — | 6.2.0-26.26~22.04.1 |
| linux-hwe-edge | — | — |
| linux-ibm | — | 5.15.0-1034.37 |
| linux-intel-5.13 | — | — |
| linux-intel-iot-realtime | — | 5.15.0-1035.37 |
| linux-intel-iotg | — | 5.15.0-1036.41 |
| linux-intel-iotg-5.15 | — | 5.15.0-1036.41~20.04.1 |
| linux-kvm | — | 5.15.0-1038.43 |
| linux-lowlatency | — | 5.15.0-78.85 |
| linux-lowlatency-hwe-5.15 | — | 5.15.0-78.85~20.04.1 |
| linux-lowlatency-hwe-5.19 | — | 5.19.0-1030.30 |
| linux-lowlatency-hwe-6.2 | — | — |
| linux-nvidia | — | 5.15.0-1029.29 |
| linux-nvidia-6.2 | — | — |
| linux-nvidia-tegra | — | 5.15.0-1016.16 |
| linux-nvidia-tegra-5.15 | — | 5.15.0-1016.16~20.04.1 |
| linux-nvidia-tegra-igx | — | 5.15.0-1002.2 |
| 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 | — | 6.0.0-1020.20 |
| linux-oem-6.1 | — | 6.1.0-1017.17 |
| linux-oracle | — | 5.15.0-1039.45 |
| linux-oracle-5.0 | — | — |
| linux-oracle-5.11 | — | — |
| linux-oracle-5.13 | — | — |
| linux-oracle-5.15 | — | 5.15.0-1039.45~20.04.1 |
| linux-oracle-5.3 | — | — |
| linux-oracle-5.8 | — | — |
| linux-raspi | — | 5.15.0-1034.37 |
| linux-raspi-realtime | — | — |
| linux-raspi2 | — | — |
| linux-realtime | — | 5.15.0-1042.47 |
| linux-riscv | — | — |
| linux-riscv-5.11 | — | — |
| linux-riscv-5.15 | — | 5.15.0-1037.41~20.04.2 |
| linux-riscv-5.19 | — | — |
| linux-riscv-5.8 | — | — |
| linux-starfive-5.19 | — | — |
| linux-xilinx-zynqmp | — | 5.15.0-1025.29 |
References
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