Vulnerability · Published Apr 24, 2026 · Assigned by Linux
CVE-2026-31634rxrpc: fix reference count leak in rxrpc_server_keyring()
Medium 5.5
In plain English
A medium-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 0.1% (higher than 3% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.1%top 97.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
In the Linux kernel, the following vulnerability has been resolved: rxrpc: fix reference count leak in rxrpc_server_keyring() This patch fixes a reference count leak in rxrpc_server_keyring() by checking if rx->securities is already set.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | linux | 6.1.170-1 | DEBIAN-CVE-2026-31634 |
| Debian:13 | linux | 6.12.85-1 | DEBIAN-CVE-2026-31634 |
| Debian:14 | linux | 6.19.13-1 | DEBIAN-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux | 5.15.0-186.196 | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux | 6.8.0-136.136 | UBUNTU-CVE-2026-31634 |
| Ubuntu:25.10 | linux | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1112.119 | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-aws | 6.8.0-1061.64 | UBUNTU-CVE-2026-31634 |
| Ubuntu:25.10 | linux-aws | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-aws-5.19 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-aws-6.14 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-aws-6.17 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-aws-6.2 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-aws-6.5 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-aws-6.8 | 6.8.0-1061.64~22.04.1 | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1117.126 | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-azure | 6.8.0-1063.71 | UBUNTU-CVE-2026-31634 |
| Ubuntu:25.10 | linux-azure | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-azure-5.19 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-azure-6.11 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-azure-6.14 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-azure-6.17 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-azure-6.2 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-azure-6.5 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-azure-6.8 | 6.8.0-1063.71~22.04.1 | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1117.126 | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-azure-fde | 6.8.0-1062.69 | UBUNTU-CVE-2026-31634 |
| Ubuntu:25.10 | linux-azure-fde | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-azure-fde-5.19 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-azure-fde-6.14 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.2 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.8 | 6.8.0-1062.69~22.04.1 | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-azure-nvidia | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-azure-nvidia-6.14 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1112.122 | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-gcp | 6.8.0-1064.72 | UBUNTU-CVE-2026-31634 |
| Ubuntu:25.10 | linux-gcp | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-gcp-5.19 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-gcp-6.11 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-gcp-6.14 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-gcp-6.17 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-gcp-6.2 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-gcp-6.5 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-gcp-6.8 | 6.8.0-1064.72~22.04.1 | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1108.114 | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-gke | 6.8.0-1059.67 | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1095.103 | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-gkeop | 6.8.0-1046.50 | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-hwe-6.11 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-hwe-6.14 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-hwe-6.17 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-hwe-6.2 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-hwe-6.5 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-hwe-6.8 | 6.8.0-136.136~22.04.1 | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1106.110 | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-ibm | 6.8.0-1061.62 | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-ibm-6.8 | 6.8.0-1061.62~22.04.1 | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1107.113 | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1104.109 | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-184.194 | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-lowlatency | 6.8.0-136.136.2 | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-5.19 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-lowlatency-hwe-6.11 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.2 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.5 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.8 | 6.8.0-136.136.2~22.04.1 | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-nvidia | 5.15.0-1107.108 | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-nvidia | 6.8.0-1059.62 | UBUNTU-CVE-2026-31634 |
| Ubuntu:26.04:LTS | linux-nvidia | 7.0.0-1006.6 | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-nvidia-6.11 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-nvidia-6.17 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-nvidia-6.2 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-nvidia-6.5 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-nvidia-6.8 | 6.8.0-1059.62~22.04.1 | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-nvidia-lowlatency | 6.8.0-1059.62.1 | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra | 5.15.0-1064.66 | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-nvidia-tegra | 6.8.0-1030.31 | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra-igx | 5.15.0-1053.53 | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-oem-6.1 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-oem-6.11 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-oem-6.14 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-oem-6.17 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-oem-6.5 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-oem-6.8 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1109.115 | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-oracle | 6.8.0-1058.61 | UBUNTU-CVE-2026-31634 |
| Ubuntu:25.10 | linux-oracle | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-oracle-6.14 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-oracle-6.17 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-oracle-6.5 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-oracle-6.8 | 6.8.0-1058.61~22.04.1 | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1106.109 | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-raspi | 6.8.0-1061.65 | UBUNTU-CVE-2026-31634 |
| Ubuntu:25.10 | linux-raspi | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:25.10 | linux-realtime | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:25.10 | linux-riscv | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-riscv-5.19 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-riscv-6.14 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-riscv-6.17 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-riscv-6.5 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-riscv-6.8 | 6.8.0-136.136~22.04.3 | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-starfive-5.19 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-starfive-6.2 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-starfive-6.5 | no fix listed | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-vmware | 6.8.0-1008.8 | UBUNTU-CVE-2026-31634 |
| Ubuntu:24.04:LTS | linux-xilinx | 6.8.0-1033.34 | UBUNTU-CVE-2026-31634 |
| Ubuntu:22.04:LTS | linux-xilinx-zynqmp | 5.15.0-1075.79 | UBUNTU-CVE-2026-31634 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | 17926a79320afa9b95df6b977b40cca6d8713cea – before 45d9584e51bdd61faf1900f82666d4ea6a85da7217926a79320afa9b95df6b977b40cca6d8713cea – before fc76d0bd00850b7372f0a4a319c0c60f8048763217926a79320afa9b95df6b977b40cca6d8713cea – before c6d9ea26cf8756ad6f162578e94a5f82f6fae3c217926a79320afa9b95df6b977b40cca6d8713cea – before 9ce36d28f67c2a477a7e2f03480de3f6783fb36317926a79320afa9b95df6b977b40cca6d8713cea – before 12de9e0e0b0b7058be7dfb8a5927eb565bc2578017926a79320afa9b95df6b977b40cca6d8713cea – before 8ee931c3cd97f1c42b4fbf057f04b9dae45dfb7a17926a79320afa9b95df6b977b40cca6d8713cea – before 139c750bf06649097d98b0bc41e2a678b4627e2717926a79320afa9b95df6b977b40cca6d8713cea – before f125846ee79fcae537a964ce66494e96fa54a6de |
| Linux | Linux | 2.6.22 |
References
- https://git.kernel.org/stable/c/45d9584e51bdd61faf1900f82666d4ea6a85da72
- https://git.kernel.org/stable/c/fc76d0bd00850b7372f0a4a319c0c60f80487632
- https://git.kernel.org/stable/c/c6d9ea26cf8756ad6f162578e94a5f82f6fae3c2
- https://git.kernel.org/stable/c/9ce36d28f67c2a477a7e2f03480de3f6783fb363
- https://git.kernel.org/stable/c/12de9e0e0b0b7058be7dfb8a5927eb565bc25780
- https://git.kernel.org/stable/c/8ee931c3cd97f1c42b4fbf057f04b9dae45dfb7a
- https://git.kernel.org/stable/c/139c750bf06649097d98b0bc41e2a678b4627e27
- https://git.kernel.org/stable/c/f125846ee79fcae537a964ce66494e96fa54a6de
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html