Description
A use-after-free vulnerability in the Linux kernel's af_unix component can be exploited to achieve local privilege escalation. The unix_stream_sendpage() function tries to add data to the last skb in the peer's recv queue without locking the queue. Thus there is a race where unix_stream_sendpage() could access an skb locklessly that is being released by garbage collection, resulting in use-after-free. We recommend upgrading past commit 790c2f9d15b594350ae9bca7b236f2b1859de02c.
Details
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| linux | — | 5.15.0-87.97 |
| linux-allwinner-5.19 | — | — |
| linux-aws | — | 5.15.0-1048.53 |
| linux-aws-5.0 | — | — |
| linux-aws-5.11 | — | — |
| linux-aws-5.13 | — | — |
| linux-aws-5.15 | — | 5.15.0-1048.53~20.04.1 |
| linux-aws-5.19 | — | — |
| linux-aws-5.3 | — | — |
| linux-aws-5.4 | — | 5.4.0-1112.121~18.04.2 |
| linux-aws-5.8 | — | — |
| linux-aws-6.2 | — | 6.2.0-1014.14~22.04.1 |
| linux-aws-fips | — | — |
| linux-aws-hwe | — | 4.15.0-1162.175~16.04.1 |
| linux-azure | — | 5.15.0-1050.57 |
| linux-azure-4.15 | — | 4.15.0-1171.186 |
| linux-azure-5.11 | — | — |
| linux-azure-5.13 | — | — |
| linux-azure-5.15 | — | 5.15.0-1050.57~20.04.1 |
| linux-azure-5.19 | — | — |
| linux-azure-5.3 | — | — |
| linux-azure-5.4 | — | 5.4.0-1118.125~18.04.1 |
| linux-azure-5.8 | — | — |
| linux-azure-6.2 | — | 6.2.0-1015.15~22.04.1 |
| linux-azure-edge | — | — |
| linux-azure-fde | — | 5.15.0-1050.57.1 |
| linux-azure-fde-5.19 | — | — |
| linux-azure-fde-6.2 | — | 6.2.0-1015.15~22.04.1.1 |
| linux-azure-fips | — | — |
| linux-bluefield | — | — |
| linux-fips | — | — |
| linux-gcp | — | 5.15.0-1045.53 |
| linux-gcp-4.15 | — | 4.15.0-1156.173 |
| linux-gcp-5.11 | — | — |
| linux-gcp-5.13 | — | — |
| linux-gcp-5.15 | — | 5.15.0-1045.53~20.04.2 |
| linux-gcp-5.19 | — | — |
| linux-gcp-5.3 | — | — |
| linux-gcp-5.4 | — | 5.4.0-1116.125~18.04.1 |
| linux-gcp-5.8 | — | — |
| linux-gcp-6.2 | — | 6.2.0-1017.19~22.04.1 |
| linux-gcp-fips | — | — |
| linux-gke | — | 5.15.0-1045.50 |
| linux-gke-4.15 | — | — |
| linux-gke-5.15 | — | — |
| linux-gke-5.4 | — | — |
| linux-gkeop | — | 5.15.0-1031.37 |
| linux-gkeop-5.15 | — | 5.15.0-1031.37~20.04.1 |
| linux-gkeop-5.4 | — | — |
| linux-hwe | — | — |
| linux-hwe-5.11 | — | — |
| linux-hwe-5.13 | — | — |
| linux-hwe-5.15 | — | 5.15.0-87.97~20.04.1 |
| linux-hwe-5.19 | — | — |
| linux-hwe-5.4 | — | 5.4.0-165.182~18.04.1 |
| linux-hwe-5.8 | — | — |
| linux-hwe-6.2 | — | 6.2.0-35.35~22.04.1 |
| linux-hwe-edge | — | — |
| linux-ibm | — | 5.15.0-1041.44 |
| linux-ibm-5.15 | — | 5.15.0-1041.44~20.04.1 |
| linux-ibm-5.4 | — | 5.4.0-1059.64~18.04.1 |
| linux-intel-5.13 | — | — |
| linux-intel-iot-realtime | — | 5.15.0-1041.43 |
| linux-intel-iotg | — | 5.15.0-1043.49 |
| linux-intel-iotg-5.15 | — | 5.15.0-1043.49~20.04.1 |
| linux-iot | — | 5.4.0-1024.25 |
| linux-kvm | — | 5.15.0-1045.50 |
| linux-lowlatency | — | 5.15.0-87.96 |
| linux-lowlatency-hwe-5.15 | — | 5.15.0-87.96~20.04.1 |
| linux-lowlatency-hwe-5.19 | — | — |
| linux-lowlatency-hwe-6.2 | — | 6.2.0-1015.15~22.04.1 |
| linux-lts-xenial | — | 4.4.0-246.280~14.04.1 |
| linux-nvidia | — | 5.15.0-1039.39 |
| linux-nvidia-6.2 | — | 6.2.0-1011.11 |
| linux-nvidia-tegra | — | 5.15.0-1019.19 |
| linux-nvidia-tegra-5.15 | — | 5.15.0-1019.19~20.04.1 |
| linux-nvidia-tegra-igx | — | 5.15.0-1006.6 |
| 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 | — | 6.1.0-1023.23 |
| linux-oracle | — | 5.15.0-1046.52 |
| linux-oracle-5.0 | — | — |
| linux-oracle-5.11 | — | — |
| linux-oracle-5.13 | — | — |
| linux-oracle-5.15 | — | 5.15.0-1046.52~20.04.1 |
| linux-oracle-5.3 | — | — |
| linux-oracle-5.4 | — | 5.4.0-1111.120~18.04.1 |
| linux-oracle-5.8 | — | — |
| linux-raspi | — | 5.15.0-1041.44 |
| linux-raspi-5.4 | — | 5.4.0-1096.107~18.04.1 |
| linux-raspi-realtime | — | — |
| linux-raspi2 | — | — |
| linux-realtime | — | 5.15.0-1049.55 |
| linux-riscv | — | — |
| linux-riscv-5.11 | — | — |
| linux-riscv-5.15 | — | 5.15.0-1044.48~20.04.1 |
| linux-riscv-5.19 | — | — |
| linux-riscv-5.8 | — | — |
| linux-starfive-5.19 | — | — |
| linux-starfive-6.2 | — | 6.2.0-1007.8~22.04.1 |
| linux-xilinx-zynqmp | — | 5.15.0-1025.29 |
References
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