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Vulnerability · Published May 1, 2025 · Assigned by Linux

CVE-2025-37757tipc: fix memory leak in tipc_link_xmit

High 7.5

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 0.5% (higher than 40% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.5%top 60.4% 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: tipc: fix memory leak in tipc_link_xmit In case the backlog transmit queue for system-importance messages is overloaded, tipc_link_xmit() returns -ENOBUFS but the skb list is not purged. This leads to memory leak and failure when a skb is allocated. This commit fixes this issue by purging the skb list before tipc_link_xmit() returns.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.135-1DEBIAN-CVE-2025-37757
Debian:13linux6.12.25-1DEBIAN-CVE-2025-37757
Debian:14linux6.12.25-1DEBIAN-CVE-2025-37757
Ubuntu:22.04:LTSlinux5.15.0-144.157UBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux6.8.0-100.100UBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux6.8.0-100.100USN-8028-1
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-aws5.15.0-1088.95UBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux-aws6.8.0-1046.49UBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux-aws6.8.0-1046.49USN-8028-5
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1046.49~22.04.1USN-8028-5
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1046.49~22.04.1UBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-azure5.15.0-1094.103UBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux-azure6.8.0-1046.52USN-8074-1
Ubuntu:24.04:LTSlinux-azure6.8.0-1046.52UBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1051.57~22.04.1UBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1094.103.1UBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux-azure-fde6.8.0-1046.53UBUNTU-CVE-2025-37757
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-azure-fde-6.86.8.0-1046.53~22.04.1UBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-gcp5.15.0-1087.96UBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux-gcp6.8.0-1047.50UBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux-gcp6.8.0-1047.50USN-8031-3
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1047.50~22.04.2USN-8031-1
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1047.50~22.04.2UBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-gke5.15.0-1085.91UBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux-gke6.8.0-1043.48USN-8031-3
Ubuntu:24.04:LTSlinux-gke6.8.0-1043.48UBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1070.78UBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1030.33UBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1030.33USN-8028-5
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-100.100~22.04.1USN-8028-6
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-100.100~22.04.1UBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-ibm5.15.0-1080.83UBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux-ibm6.8.0-1044.44UBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux-ibm6.8.0-1044.44USN-8028-8
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1044.44~22.04.1UBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1044.44~22.04.1USN-8028-8
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1083.89UBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-kvm5.15.0-1084.89UBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-144.157UBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-100.100.1UBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-100.100.1USN-8052-1
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-100.100.1~22.04.1USN-8028-6
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-100.100.1~22.04.1UBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1082.83UBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1046.49UBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1046.49USN-8028-5
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1046.49~22.04.1UBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1046.49~22.04.1USN-8028-5
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1046.49.1UBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1046.49.1USN-8028-7
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1041.41UBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1020.20UBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1030.30UBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-oracle5.15.0-1085.91UBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux-oracle6.8.0-1043.44USN-8028-5
Ubuntu:24.04:LTSlinux-oracle6.8.0-1043.44UBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1043.44~22.04.1UBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1043.44~22.04.1USN-8028-5
Ubuntu:22.04:LTSlinux-raspi5.15.0-1083.86UBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux-raspi6.8.0-1047.51USN-8028-1
Ubuntu:24.04:LTSlinux-raspi6.8.0-1047.51UBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-100.100~22.04.1UBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-37757
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1023.24USN-8052-2
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1023.24UBUNTU-CVE-2025-37757
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1052.56UBUNTU-CVE-2025-37757

Affected products (as reported)

VendorProductVersions
Linux Linux 365ad353c2564bba8835290061308ba825166b3a – before 84895f5ce3829d9fc030e5ec2d8729da4c0c9d08365ad353c2564bba8835290061308ba825166b3a – before d4d40e437adb376be16b3a12dd5c63f0fa768247365ad353c2564bba8835290061308ba825166b3a – before ed06675d3b8cd37120b447646d53f7cd3e6fcd63365ad353c2564bba8835290061308ba825166b3a – before 24e6280cdd7f8d01fc6b9b365fb800c2fb7ea9bb365ad353c2564bba8835290061308ba825166b3a – before 09c2dcda2c551bba30710c33f6ac678ae7395389365ad353c2564bba8835290061308ba825166b3a – before 7c5957f7905b4aede9d7a559d271438f3ca9e852365ad353c2564bba8835290061308ba825166b3a – before d0e02d3d27a0b4dcb13f954f537ca1dd8f282dcf365ad353c2564bba8835290061308ba825166b3a – before a40cbfbb8f95c325430f017883da669b2aa927d4
Linux Linux 4.11

References