Vulnerability · Published Aug 19, 2025 · Assigned by Linux
CVE-2025-38568net/sched: mqprio: fix stack out-of-bounds write in tc entry parsing
High 7.8
In plain English
A high-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 92.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
In the Linux kernel, the following vulnerability has been resolved: net/sched: mqprio: fix stack out-of-bounds write in tc entry parsing TCA_MQPRIO_TC_ENTRY_INDEX is validated using NLA_POLICY_MAX(NLA_U32, TC_QOPT_MAX_QUEUE), which allows the value TC_QOPT_MAX_QUEUE (16). This leads to a 4-byte out-of-bounds stack write in the fp[] array, which only has room for 16 elements (0–15). Fix this by changing the policy to allow only up to TC_QOPT_MAX_QUEUE - 1.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:9 | kernel | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-64k | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-64k-core | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-64k-debug | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-64k-debug-core | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-64k-debug-devel | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-64k-debug-devel-matched | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-64k-debug-modules | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-64k-debug-modules-core | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-64k-debug-modules-extra | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-64k-devel | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-64k-devel-matched | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-64k-modules | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-64k-modules-core | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-64k-modules-extra | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:10 | kernel-abi-stablelists | 6.12.0-124.31.1.el10_1 | ALSA-2026:1690 |
| AlmaLinux:9 | kernel-abi-stablelists | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-core | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-cross-headers | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-debug | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-debug-core | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-debug-devel | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-debug-devel-matched | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-debug-modules | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-debug-modules-core | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-debug-modules-extra | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-debug-uki-virt | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-devel | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-devel-matched | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:10 | kernel-doc | 6.12.0-124.31.1.el10_1 | ALSA-2026:1690 |
| AlmaLinux:9 | kernel-doc | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-headers | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-modules | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-modules-core | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-modules-extra | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-rt | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-rt-64k | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-rt-64k-core | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-rt-64k-debug | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-rt-64k-debug-core | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-rt-64k-debug-devel | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-rt-64k-debug-modules | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-rt-64k-debug-modules-core | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-rt-64k-debug-modules-extra | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-rt-64k-devel | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-rt-64k-modules | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-rt-64k-modules-core | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-rt-64k-modules-extra | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-rt-core | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-rt-debug | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-rt-debug-core | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-rt-debug-devel | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-rt-debug-modules | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-rt-debug-modules-core | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-rt-debug-modules-extra | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-rt-devel | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-rt-modules | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-rt-modules-core | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-rt-modules-extra | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-tools | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-tools-libs | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-tools-libs-devel | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-uki-virt | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-uki-virt-addons | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-zfcpdump | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-zfcpdump-core | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-zfcpdump-devel | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-zfcpdump-devel-matched | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-zfcpdump-modules | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-zfcpdump-modules-core | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | kernel-zfcpdump-modules-extra | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | libperf | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | perf | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | python3-perf | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | rtla | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| AlmaLinux:9 | rv | 5.14.0-611.27.1.el9_7 | ALSA-2026:1617 |
| Debian:13 | linux | 6.12.43-1 | DEBIAN-CVE-2025-38568 |
| Debian:14 | linux | 6.16.3-1 | DEBIAN-CVE-2025-38568 |
| Rocky Linux:10 | kernel | 0:6.12.0-124.31.1.el10_1 | RLSA-2026:1690 |
| Rocky Linux:9 | kernel | 0:5.14.0-611.27.1.el9_7 | RLSA-2026:1617 |
| Ubuntu:24.04:LTS | linux | 6.8.0-100.100 | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-aws | 6.8.0-1046.49 | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-aws-5.19 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-aws-6.14 | 6.14.0-1017.17~24.04.1 | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-aws-6.2 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-aws-6.5 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-aws-6.8 | 6.8.0-1046.49~22.04.1 | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-azure | 6.8.0-1046.52 | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-azure-5.19 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-azure-6.11 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-azure-6.14 | 6.14.0-1017.17~24.04.1 | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-azure-6.2 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-azure-6.5 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-azure-6.8 | 6.8.0-1051.57~22.04.1 | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-azure-fde | 6.8.0-1046.53 | UBUNTU-CVE-2025-38568 |
| Ubuntu:25.10 | linux-azure-fde | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-azure-fde-5.19 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-azure-fde-6.14 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.2 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.8 | 6.8.0-1046.53~22.04.1 | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-azure-nvidia | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-azure-nvidia-6.14 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-gcp | 6.8.0-1047.50 | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-gcp-5.19 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-gcp-6.11 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-gcp-6.14 | 6.14.0-1020.21~24.04.1 | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-gcp-6.2 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-gcp-6.5 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-gcp-6.8 | 6.8.0-1047.50~22.04.2 | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-gke | 6.8.0-1043.48 | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-gkeop | 6.8.0-1030.33 | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-hwe-6.11 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-hwe-6.2 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-hwe-6.5 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-hwe-6.8 | 6.8.0-100.100~22.04.1 | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-ibm | 6.8.0-1044.44 | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-ibm-6.8 | 6.8.0-1044.44~22.04.1 | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-intel | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-lowlatency | 6.8.0-100.100.1 | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-5.19 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-lowlatency-hwe-6.11 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.2 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.5 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.8 | 6.8.0-100.100.1~22.04.1 | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-nvidia | 6.8.0-1046.49 | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-nvidia-6.11 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-nvidia-6.2 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-nvidia-6.5 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-nvidia-6.8 | 6.8.0-1046.49~22.04.1 | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-nvidia-lowlatency | 6.8.0-1046.49.1 | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-nvidia-tegra | 6.8.0-1020.20 | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-oem-6.1 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-oem-6.11 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-oem-6.14 | 6.14.0-1016.16 | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-oem-6.5 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-oem-6.8 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-oracle | 6.8.0-1043.44 | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-oracle-6.14 | 6.14.0-1017.17~24.04.1 | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-oracle-6.5 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-oracle-6.8 | 6.8.0-1043.44~22.04.1 | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-raspi | 6.8.0-1047.51 | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-riscv-5.19 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-riscv-6.14 | 6.14.0-36.36.1~24.04.1 | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-riscv-6.5 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-riscv-6.8 | 6.8.0-100.100~22.04.1 | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-starfive-5.19 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-starfive-6.2 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:22.04:LTS | linux-starfive-6.5 | no fix listed | UBUNTU-CVE-2025-38568 |
| Ubuntu:24.04:LTS | linux-xilinx | 6.8.0-1023.24 | UBUNTU-CVE-2025-38568 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | f62af20bed2d9e824f51cfc97ff01bc261f40e58 – before 39491e859fd494d0b51adc5c7d54c8a7dcf1d198f62af20bed2d9e824f51cfc97ff01bc261f40e58 – before d00e4125680f7074c4f42ce3c297336f23128e70f62af20bed2d9e824f51cfc97ff01bc261f40e58 – before 66fc2ebdd9d5dd6e5a9c7edeace5a61a0ab2cd86f62af20bed2d9e824f51cfc97ff01bc261f40e58 – before f1a9dbcb7d17bf0abb325cdc984957cfabc59693f62af20bed2d9e824f51cfc97ff01bc261f40e58 – before ffd2dc4c6c49ff4f1e5d34e454a6a55608104c17 |
| Linux | Linux | 6.4 |
References
- https://git.kernel.org/stable/c/39491e859fd494d0b51adc5c7d54c8a7dcf1d198
- https://git.kernel.org/stable/c/d00e4125680f7074c4f42ce3c297336f23128e70
- https://git.kernel.org/stable/c/66fc2ebdd9d5dd6e5a9c7edeace5a61a0ab2cd86
- https://git.kernel.org/stable/c/f1a9dbcb7d17bf0abb325cdc984957cfabc59693
- https://git.kernel.org/stable/c/ffd2dc4c6c49ff4f1e5d34e454a6a55608104c17