🛡️ UBUNTU-CVE-2023-53097
Description
In the Linux kernel, the following vulnerability has been resolved: powerpc/iommu: fix memory leak with using debugfs_lookup() When calling debugfs_lookup() the result must have dput() called on it, otherwise the memory will leak over time. To make things simpler, just call debugfs_lookup_and_remove() instead which handles all of the logic at once.
How this vulnerability can be exploited
This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.
Affected software and timeline
Affected software: linux (fixed in 5.15.0-79.86), linux-allwinner-5.19, linux-aws (fixed in 5.15.0-1042.47), linux-aws-5.0, linux-aws-5.11, linux-aws-5.13, linux-aws-5.15 (fixed in 5.15.0-1041.46~20.04.1), linux-aws-5.19, linux-aws-5.3, linux-aws-5.4, linux-aws-5.8, linux-aws-6.2, linux-aws-6.5, linux-aws-fips, linux-aws-hwe, linux-azure (fixed in 5.15.0-1045.52), linux-azure-4.15, linux-azure-5.11, linux-azure-5.13, linux-azure-5.15 (fixed in 5.15.0-1045.52~20.04.1), linux-azure-5.19, linux-azure-5.3, linux-azure-5.4, linux-azure-5.8, linux-azure-6.2, linux-azure-6.5, linux-azure-edge, linux-azure-fde, linux-azure-fde-5.15, linux-azure-fde-5.19, linux-azure-fde-6.2, linux-azure-fips, linux-bluefield, linux-fips, linux-gcp (fixed in 5.15.0-1039.47), linux-gcp-4.15, linux-gcp-5.11, linux-gcp-5.13, linux-gcp-5.15 (fixed in 5.15.0-1039.47~20.04.1), linux-gcp-5.19, linux-gcp-5.3, linux-gcp-5.4, linux-gcp-5.8, linux-gcp-6.2, linux-gcp-6.5, linux-gcp-fips, linux-gke (fixed in 5.15.0-1039.44), linux-gke-4.15, linux-gke-5.15, linux-gke-5.4, linux-gkeop (fixed in 5.15.0-1025.30), linux-gkeop-5.15, linux-gkeop-5.4, linux-hwe, linux-hwe-5.11, linux-hwe-5.13, linux-hwe-5.15 (fixed in 5.15.0-79.86~20.04.2), linux-hwe-5.19, linux-hwe-5.4, linux-hwe-5.8, linux-hwe-6.2, linux-hwe-6.5, linux-hwe-edge, linux-ibm (fixed in 5.15.0-1035.38), linux-ibm-5.15 (fixed in 5.15.0-1036.39~20.04.1), linux-ibm-5.4, linux-intel-5.13, linux-intel-iot-realtime (fixed in 5.15.0-1036.38), linux-intel-iotg (fixed in 5.15.0-1037.42), linux-intel-iotg-5.15 (fixed in 5.15.0-1037.42~20.04.1), linux-iot, linux-kvm (fixed in 5.15.0-1039.44), linux-lowlatency (fixed in 5.15.0-79.88), linux-lowlatency-hwe-5.15 (fixed in 5.15.0-79.88~20.04.1), linux-lowlatency-hwe-5.19, linux-lowlatency-hwe-6.2, linux-lowlatency-hwe-6.5, linux-lts-xenial, linux-nvidia (fixed in 5.15.0-1030.30), linux-nvidia-6.2, linux-nvidia-6.5, linux-nvidia-tegra (fixed in 5.15.0-1016.16), linux-nvidia-tegra-5.15 (fixed in 5.15.0-1016.16~20.04.1), linux-nvidia-tegra-igx (fixed in 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, linux-oem-6.1, linux-oem-6.5, linux-oracle (fixed in 5.15.0-1040.46), linux-oracle-5.0, linux-oracle-5.11, linux-oracle-5.13, linux-oracle-5.15 (fixed in 5.15.0-1040.46~20.04.1), linux-oracle-5.3, linux-oracle-5.4, linux-oracle-5.8, linux-oracle-6.5, linux-raspi (fixed in 5.15.0-1035.38), linux-raspi-5.4, linux-raspi-realtime, linux-raspi2, linux-realtime, linux-riscv, linux-riscv-5.11, linux-riscv-5.15 (fixed in 5.15.0-1038.42~20.04.2), linux-riscv-5.19, linux-riscv-5.8, linux-riscv-6.5, linux-starfive-5.19, linux-starfive-6.2, linux-starfive-6.5 and linux-xilinx-zynqmp (fixed in 5.15.0-1025.29). Published on 2 May 2025 and last revised on 8 June 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.
Details
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| linux | — | 5.15.0-79.86 |
| linux-allwinner-5.19 | — | — |
| linux-aws | — | 5.15.0-1042.47 |
| linux-aws-5.0 | — | — |
| linux-aws-5.11 | — | — |
| linux-aws-5.13 | — | — |
| linux-aws-5.15 | — | 5.15.0-1041.46~20.04.1 |
| linux-aws-5.19 | — | — |
| linux-aws-5.3 | — | — |
| linux-aws-5.4 | — | — |
| linux-aws-5.8 | — | — |
| linux-aws-6.2 | — | — |
| linux-aws-6.5 | — | — |
| linux-aws-fips | — | — |
| linux-aws-hwe | — | — |
| linux-azure | — | 5.15.0-1045.52 |
| linux-azure-4.15 | — | — |
| linux-azure-5.11 | — | — |
| linux-azure-5.13 | — | — |
| linux-azure-5.15 | — | 5.15.0-1045.52~20.04.1 |
| linux-azure-5.19 | — | — |
| linux-azure-5.3 | — | — |
| linux-azure-5.4 | — | — |
| linux-azure-5.8 | — | — |
| linux-azure-6.2 | — | — |
| linux-azure-6.5 | — | — |
| linux-azure-edge | — | — |
| linux-azure-fde | — | — |
| linux-azure-fde-5.15 | — | — |
| linux-azure-fde-5.19 | — | — |
| linux-azure-fde-6.2 | — | — |
| linux-azure-fips | — | — |
| linux-bluefield | — | — |
| linux-fips | — | — |
| linux-gcp | — | 5.15.0-1039.47 |
| linux-gcp-4.15 | — | — |
| linux-gcp-5.11 | — | — |
| linux-gcp-5.13 | — | — |
| linux-gcp-5.15 | — | 5.15.0-1039.47~20.04.1 |
| linux-gcp-5.19 | — | — |
| linux-gcp-5.3 | — | — |
| linux-gcp-5.4 | — | — |
| linux-gcp-5.8 | — | — |
| linux-gcp-6.2 | — | — |
| linux-gcp-6.5 | — | — |
| linux-gcp-fips | — | — |
| linux-gke | — | 5.15.0-1039.44 |
| linux-gke-4.15 | — | — |
| linux-gke-5.15 | — | — |
| linux-gke-5.4 | — | — |
| linux-gkeop | — | 5.15.0-1025.30 |
| linux-gkeop-5.15 | — | — |
| linux-gkeop-5.4 | — | — |
| linux-hwe | — | — |
| linux-hwe-5.11 | — | — |
| linux-hwe-5.13 | — | — |
| linux-hwe-5.15 | — | 5.15.0-79.86~20.04.2 |
| linux-hwe-5.19 | — | — |
| linux-hwe-5.4 | — | — |
| linux-hwe-5.8 | — | — |
| linux-hwe-6.2 | — | — |
| linux-hwe-6.5 | — | — |
| linux-hwe-edge | — | — |
| linux-ibm | — | 5.15.0-1035.38 |
| linux-ibm-5.15 | — | 5.15.0-1036.39~20.04.1 |
| linux-ibm-5.4 | — | — |
| linux-intel-5.13 | — | — |
| linux-intel-iot-realtime | — | 5.15.0-1036.38 |
| linux-intel-iotg | — | 5.15.0-1037.42 |
| linux-intel-iotg-5.15 | — | 5.15.0-1037.42~20.04.1 |
| linux-iot | — | — |
| linux-kvm | — | 5.15.0-1039.44 |
| linux-lowlatency | — | 5.15.0-79.88 |
| linux-lowlatency-hwe-5.15 | — | 5.15.0-79.88~20.04.1 |
| linux-lowlatency-hwe-5.19 | — | — |
| linux-lowlatency-hwe-6.2 | — | — |
| linux-lowlatency-hwe-6.5 | — | — |
| linux-lts-xenial | — | — |
| linux-nvidia | — | 5.15.0-1030.30 |
| linux-nvidia-6.2 | — | — |
| linux-nvidia-6.5 | — | — |
| 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 | — | — |
| linux-oem-6.1 | — | — |
| linux-oem-6.5 | — | — |
| linux-oracle | — | 5.15.0-1040.46 |
| linux-oracle-5.0 | — | — |
| linux-oracle-5.11 | — | — |
| linux-oracle-5.13 | — | — |
| linux-oracle-5.15 | — | 5.15.0-1040.46~20.04.1 |
| linux-oracle-5.3 | — | — |
| linux-oracle-5.4 | — | — |
| linux-oracle-5.8 | — | — |
| linux-oracle-6.5 | — | — |
| linux-raspi | — | 5.15.0-1035.38 |
| linux-raspi-5.4 | — | — |
| linux-raspi-realtime | — | — |
| linux-raspi2 | — | — |
| linux-realtime | — | — |
| linux-riscv | — | — |
| linux-riscv-5.11 | — | — |
| linux-riscv-5.15 | — | 5.15.0-1038.42~20.04.2 |
| linux-riscv-5.19 | — | — |
| linux-riscv-5.8 | — | — |
| linux-riscv-6.5 | — | — |
| linux-starfive-5.19 | — | — |
| linux-starfive-6.2 | — | — |
| linux-starfive-6.5 | — | — |
| linux-xilinx-zynqmp | — | 5.15.0-1025.29 |
References
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