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Vulnerability · Published May 29, 2025 · Assigned by Linux

CVE-2025-37997netfilter: ipset: fix region locking in hash types

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 8% 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 92.3% 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: netfilter: ipset: fix region locking in hash types Region locking introduced in v5.6-rc4 contained three macros to handle the region locks: ahash_bucket_start(), ahash_bucket_end() which gave back the start and end hash bucket values belonging to a given region lock and ahash_region() which should give back the region lock belonging to a given hash bucket. The latter was incorrect which can lead to a race condition between the garbage collector and adding new elements when a hash type of set is defined with timeouts.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.139-1DEBIAN-CVE-2025-37997
Debian:13linux6.12.29-1DEBIAN-CVE-2025-37997
Debian:14linux6.12.29-1DEBIAN-CVE-2025-37997
Ubuntu:22.04:LTSlinux5.15.0-143.153UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux5.15.0-143.153USN-7608-1
Ubuntu:24.04:LTSlinux6.8.0-63.66USN-7609-1
Ubuntu:24.04:LTSlinux6.8.0-63.66UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-aws5.15.0-1087.94UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-aws5.15.0-1087.94USN-7608-1
Ubuntu:24.04:LTSlinux-aws6.8.0-1031.33USN-7609-1
Ubuntu:24.04:LTSlinux-aws6.8.0-1031.33UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-37997
Ubuntu:24.04:LTSlinux-aws-6.146.14.0-1009.9~24.04.1USN-7665-2
Ubuntu:24.04:LTSlinux-aws-6.146.14.0-1009.9~24.04.1UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1031.33~22.04.1USN-7609-1
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1031.33~22.04.1UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-azure5.15.0-1092.101UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-azure5.15.0-1092.101USN-7608-7
Ubuntu:24.04:LTSlinux-azure6.8.0-1031.36USN-7609-4
Ubuntu:24.04:LTSlinux-azure6.8.0-1031.36UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-37997
Ubuntu:24.04:LTSlinux-azure-6.116.11.0-1018.18~24.04.1UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1031.36~22.04.1USN-7609-5
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1031.36~22.04.1UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1092.101.1UBUNTU-CVE-2025-37997
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-37997
Ubuntu:24.04:LTSlinux-azure-nvidia6.8.0-1019.20USN-7609-5
Ubuntu:24.04:LTSlinux-azure-nvidia6.8.0-1019.20UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-gcp5.15.0-1086.95UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-gcp5.15.0-1086.95USN-7608-1
Ubuntu:24.04:LTSlinux-gcp6.8.0-1032.34USN-7609-1
Ubuntu:24.04:LTSlinux-gcp6.8.0-1032.34UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-37997
Ubuntu:24.04:LTSlinux-gcp-6.116.11.0-1017.17~24.04.1UBUNTU-CVE-2025-37997
Ubuntu:24.04:LTSlinux-gcp-6.116.11.0-1017.17~24.04.1USN-7610-1
Ubuntu:24.04:LTSlinux-gcp-6.146.14.0-1011.11~24.04.1UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1032.34~22.04.1USN-7609-1
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1032.34~22.04.1UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-gke5.15.0-1084.90UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-gke5.15.0-1084.90USN-7608-1
Ubuntu:24.04:LTSlinux-gke6.8.0-1027.31USN-7609-1
Ubuntu:24.04:LTSlinux-gke6.8.0-1027.31UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1069.77UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1069.77USN-7608-1
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1014.16USN-7609-1
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1014.16UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-37997
Ubuntu:24.04:LTSlinux-hwe-6.116.11.0-29.29~24.04.1UBUNTU-CVE-2025-37997
Ubuntu:24.04:LTSlinux-hwe-6.116.11.0-29.29~24.04.1USN-7610-1
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-64.67~22.04.1UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-ibm5.15.0-1079.82USN-7608-1
Ubuntu:22.04:LTSlinux-ibm5.15.0-1079.82UBUNTU-CVE-2025-37997
Ubuntu:24.04:LTSlinux-ibm6.8.0-1028.28USN-7609-3
Ubuntu:24.04:LTSlinux-ibm6.8.0-1028.28UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1028.28~22.04.1UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1082.88USN-7608-5
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1082.88UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-kvm5.15.0-1083.88UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-kvm5.15.0-1083.88USN-7608-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-143.153USN-7608-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-143.153UBUNTU-CVE-2025-37997
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-63.66.1USN-7609-1
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-63.66.1UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-37997
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.116.11.0-1016.17~24.04.1UBUNTU-CVE-2025-37997
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.116.11.0-1016.17~24.04.1USN-7610-3
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-63.66.1~22.04.1UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-63.66.1~22.04.1USN-7609-1
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1081.82USN-7608-1
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1081.82UBUNTU-CVE-2025-37997
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1030.33UBUNTU-CVE-2025-37997
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1030.33USN-7609-1
Ubuntu:24.04:LTSlinux-nvidia-6.116.11.0-1012.12UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1030.33~22.04.1USN-7609-1
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1030.33~22.04.1UBUNTU-CVE-2025-37997
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1030.33.1USN-7609-1
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1030.33.1UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1040.40USN-7608-5
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1040.40UBUNTU-CVE-2025-37997
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1008.8UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1029.29UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1029.29USN-7608-5
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-37997
Ubuntu:24.04:LTSlinux-oem-6.116.11.0-1025.25USN-7610-2
Ubuntu:24.04:LTSlinux-oem-6.116.11.0-1025.25UBUNTU-CVE-2025-37997
Ubuntu:24.04:LTSlinux-oem-6.146.14.0-1006.6UBUNTU-CVE-2025-37997
Ubuntu:24.04:LTSlinux-oem-6.146.14.0-1006.6USN-7618-1
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-37997
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1030.30UBUNTU-CVE-2025-37997
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1030.30USN-7609-1
Ubuntu:22.04:LTSlinux-oracle5.15.0-1084.90USN-7608-1
Ubuntu:22.04:LTSlinux-oracle5.15.0-1084.90UBUNTU-CVE-2025-37997
Ubuntu:24.04:LTSlinux-oracle6.8.0-1028.29UBUNTU-CVE-2025-37997
Ubuntu:24.04:LTSlinux-oracle6.8.0-1028.29USN-7609-1
Ubuntu:24.04:LTSlinux-oracle-6.146.14.0-1009.9~24.04.1UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1028.29~22.04.1UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1028.29~22.04.1USN-7609-1
Ubuntu:22.04:LTSlinux-raspi5.15.0-1083.86UBUNTU-CVE-2025-37997
Ubuntu:24.04:LTSlinux-raspi6.8.0-1030.34UBUNTU-CVE-2025-37997
Ubuntu:24.04:LTSlinux-raspi6.8.0-1030.34USN-7609-1
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-37997
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-37997
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-37997
Ubuntu:24.04:LTSlinux-riscv-6.146.14.0-23.23.1~24.04.1UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-63.66~22.04.1UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-37997
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1017.18UBUNTU-CVE-2025-37997
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1051.55USN-7608-6
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1051.55UBUNTU-CVE-2025-37997

Affected products (as reported)

VendorProductVersions
Linux Linux 5dd9488ae41070b69d2f4acb580f77db5705f9ca – before 00cfc5fad1491796942a948808afb968a0a3f35bf66ee0410b1c3481ee75e5db9b34547b4d582465 – before 226ce0ec38316d9e3739e73a64b6b8304646c658f66ee0410b1c3481ee75e5db9b34547b4d582465 – before 82c1eb32693bc48251d92532975e19160987e5b9f66ee0410b1c3481ee75e5db9b34547b4d582465 – before aa77294b0f73bb8265987591460cd25b8722c3dff66ee0410b1c3481ee75e5db9b34547b4d582465 – before a3dfec485401943e315c394c29afe2db8f9481d6f66ee0410b1c3481ee75e5db9b34547b4d582465 – before e2ab67672b2288521a6146034a971f9a82ffc5c5f66ee0410b1c3481ee75e5db9b34547b4d582465 – before 6e002ecc1c8cfdfc866b9104ab7888da54613e59f66ee0410b1c3481ee75e5db9b34547b4d582465 – before 8478a729c0462273188263136880480729e9efca
Linux Linux 5.6

References