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Vulnerability · Published Oct 24, 2025 · Assigned by Linux

CVE-2023-53733net: sched: cls_u32: Undo tcf_bind_filter if u32_replace_hw_knode

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 4% 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 95.6% 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: cls_u32: Undo tcf_bind_filter if u32_replace_hw_knode When u32_replace_hw_knode fails, we need to undo the tcf_bind_filter operation done at u32_set_parms.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.52-1DEBIAN-CVE-2023-53733
Debian:13linux6.4.11-1DEBIAN-CVE-2023-53733
Debian:14linux6.4.11-1DEBIAN-CVE-2023-53733
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-53733
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-53733
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2023-53733
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2023-53733
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2023-53733
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2023-53733
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2023-53733
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-53733
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-53733
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2023-53733
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2023-53733

Affected products (as reported)

VendorProductVersions
Linux Linux d34e3e181395192d6d1f50dd97bd7854e04e33a4 – before d83345a8c0143ea31822be0aeb91a63bfc58215ed34e3e181395192d6d1f50dd97bd7854e04e33a4 – before 3d5edcd3bca4aff15a18e45c79df1525059ab0e2d34e3e181395192d6d1f50dd97bd7854e04e33a4 – before a9345793469b65ee5ba7b033239916c2a67d3dd4d34e3e181395192d6d1f50dd97bd7854e04e33a4 – before 025159ed118ba5145b241d574edadb0e00d3c20fd34e3e181395192d6d1f50dd97bd7854e04e33a4 – before 9cb36faedeafb9720ac236aeae2ea57091d90a09
Linux Linux 4.7

References