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Vulnerability · Published May 9, 2024 · Assigned by Linux

CVE-2024-27396net: gtp: Fix Use-After-Free in gtp_dellink

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 16% 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 84.4% 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: net: gtp: Fix Use-After-Free in gtp_dellink Since call_rcu, which is called in the hlist_for_each_entry_rcu traversal of gtp_dellink, is not part of the RCU read critical section, it is possible that the RCU grace period will pass during the traversal and the key will be free. To prevent this, it should be changed to hlist_for_each_entry_safe.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.90-1DEBIAN-CVE-2024-27396
Debian:13linux6.8.9-1DEBIAN-CVE-2024-27396
Debian:14linux6.8.9-1DEBIAN-CVE-2024-27396
Ubuntu:22.04:LTSlinux5.15.0-116.126UBUNTU-CVE-2024-27396
Ubuntu:24.04:LTSlinux6.8.0-40.40UBUNTU-CVE-2024-27396
Ubuntu:24.04:LTSlinux6.8.0-40.40USN-6949-1
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-aws5.15.0-1065.71UBUNTU-CVE-2024-27396
Ubuntu:24.04:LTSlinux-aws6.8.0-1013.14USN-6949-1
Ubuntu:24.04:LTSlinux-aws6.8.0-1013.14UBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1013.14~22.04.1UBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-azure5.15.0-1068.77UBUNTU-CVE-2024-27396
Ubuntu:24.04:LTSlinux-azure6.8.0-1012.14UBUNTU-CVE-2024-27396
Ubuntu:24.04:LTSlinux-azure6.8.0-1012.14USN-6952-2
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1012.14~22.04.1UBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1068.77.1UBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-gcp5.15.0-1064.72UBUNTU-CVE-2024-27396
Ubuntu:24.04:LTSlinux-gcp6.8.0-1012.13USN-6949-1
Ubuntu:24.04:LTSlinux-gcp6.8.0-1012.13UBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1012.13~22.04.1UBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-gke5.15.0-1062.68UBUNTU-CVE-2024-27396
Ubuntu:24.04:LTSlinux-gke6.8.0-1008.11UBUNTU-CVE-2024-27396
Ubuntu:24.04:LTSlinux-gke6.8.0-1008.11USN-6949-1
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1048.55UBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-40.40~22.04.3UBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-ibm5.15.0-1058.61UBUNTU-CVE-2024-27396
Ubuntu:24.04:LTSlinux-ibm6.8.0-1010.10UBUNTU-CVE-2024-27396
Ubuntu:24.04:LTSlinux-ibm6.8.0-1010.10USN-6949-1
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1010.10~22.04.1UBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1060.66UBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-kvm5.15.0-1062.67UBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-116.126UBUNTU-CVE-2024-27396
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-40.40.1USN-6949-2
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-40.40.1UBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-40.40.1~22.04.1UBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1060.61UBUNTU-CVE-2024-27396
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1011.11UBUNTU-CVE-2024-27396
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1011.11USN-6949-1
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1011.11~22.04.1USN-6949-1
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1011.11~22.04.1UBUNTU-CVE-2024-27396
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1011.11.1UBUNTU-CVE-2024-27396
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1011.11.1USN-6952-1
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1026.26UBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1015.15UBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2024-27396
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1010.10USN-6955-1
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1010.10UBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-oracle5.15.0-1063.69UBUNTU-CVE-2024-27396
Ubuntu:24.04:LTSlinux-oracle6.8.0-1010.10UBUNTU-CVE-2024-27396
Ubuntu:24.04:LTSlinux-oracle6.8.0-1010.10USN-6952-1
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1010.10~22.04.1UBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-raspi5.15.0-1058.61UBUNTU-CVE-2024-27396
Ubuntu:24.04:LTSlinux-raspi6.8.0-1009.10UBUNTU-CVE-2024-27396
Ubuntu:24.04:LTSlinux-raspi6.8.0-1009.10USN-6949-2
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-27396
Ubuntu:24.04:LTSlinux-riscv6.8.0-40.40.1UBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-40.40.1~22.04.1UBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2024-27396
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1035.39UBUNTU-CVE-2024-27396

Affected products (as reported)

VendorProductVersions
Linux Linux 043a283d24f40fea4c8a8d06b0e2694c8e372200 – before 07b20d0a3dc13fb1adff10b60021a4924498da58c185e1d6e2752a4b656c3ca878c525fa11f55757 – before 718df1bc226c383dd803397d7f5d95557eb81ac794dc550a5062030569d4aa76e10e50c8fc001930 – before 0caff3e6390f840666b8dc1ecebf985c2ef3f1dd94dc550a5062030569d4aa76e10e50c8fc001930 – before 2e74b3fd6bf542349758f283676dff3660327c0794dc550a5062030569d4aa76e10e50c8fc001930 – before 25a1c2d4b1fcf938356a9688a96a6456abd44b2994dc550a5062030569d4aa76e10e50c8fc001930 – before 2aacd4de45477582993f8a8abb9505a06426bfb694dc550a5062030569d4aa76e10e50c8fc001930 – before cd957d1716ec979d8f5bf38fc659aeb9fdaa247494dc550a5062030569d4aa76e10e50c8fc001930 – before f2a904107ee2b647bb7794a1a82b67740d7c8a64
Linux Linux 5.5

References