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Vulnerability · Published Dec 8, 2025 · Assigned by Linux

CVE-2025-40314usb: cdns3: gadget: Use-after-free during failed initialization and exit of cdnsp gadget

Unrated

In plain English

A 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 9% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS )–Not rated
Exploit odds (30 days)0.2%top 91.2% 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: usb: cdns3: gadget: Use-after-free during failed initialization and exit of cdnsp gadget In the __cdnsp_gadget_init() and cdnsp_gadget_exit() functions, the gadget structure (pdev->gadget) was freed before its endpoints. The endpoints are linked via the ep_list in the gadget structure. Freeing the gadget first leaves dangling pointers in the endpoint list. When the endpoints are subsequently freed, this results in a use-after-free. Fix: By separating the usb_del_gadget_udc() operation into distinct "del" and "put" steps, cdnsp_gadget_free_endpoints() can be executed prior to the final release of the gadget structure with usb_put_gadget(). A patch similar to bb9c74a5bd14("usb: dwc3: gadget: Free gadget structure only after freeing endpoints").

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.159-1DEBIAN-CVE-2025-40314
Debian:13linux6.12.63-1DEBIAN-CVE-2025-40314
Debian:14linux6.17.8-1DEBIAN-CVE-2025-40314
Ubuntu:22.04:LTSlinux5.15.0-173.183USN-8096-1
Ubuntu:25.10linux6.17.0-14.14UBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-aws5.15.0-1103.110USN-8096-1
Ubuntu:25.10linux-aws6.17.0-1007.7UBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-40314
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2025-40314
Ubuntu:24.04:LTSlinux-aws-6.176.17.0-1007.7~24.04.1UBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-40314
Ubuntu:25.10linux-azure6.17.0-1008.8UBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-40314
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2025-40314
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-40314
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-40314
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-40314
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-gcp5.15.0-1103.112USN-8096-1
Ubuntu:25.10linux-gcp6.17.0-1007.7UBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-40314
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2025-40314
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2025-40314
Ubuntu:24.04:LTSlinux-gcp-6.176.17.0-1008.8~24.04.1UBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-gke5.15.0-1099.105USN-8096-3
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1086.94USN-8096-1
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-40314
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2025-40314
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-ibm5.15.0-1097.100USN-8096-1
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1098.104USN-8096-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1095.100USN-8096-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-173.183USN-8096-1
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-40314
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1098.99USN-8096-1
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2025-40314
Ubuntu:24.04:LTSlinux-nvidia-6.176.17.0-1008.8UBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1055.55USN-8096-1
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1044.44USN-8096-5
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-40314
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2025-40314
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-40314
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-oracle5.15.0-1100.106USN-8096-1
Ubuntu:25.10linux-oracle6.17.0-1007.7UBUNTU-CVE-2025-40314
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2025-40314
Ubuntu:24.04:LTSlinux-oracle-6.176.17.0-1007.7~24.04.1UBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-40314
Ubuntu:25.10linux-raspi6.17.0-1008.8UBUNTU-CVE-2025-40314
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-40314
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-40314
Ubuntu:25.10linux-realtime6.17.0-1006.7UBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-40314
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-40314
Ubuntu:25.10linux-riscv6.17.0-14.14.1UBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-40314
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-40314
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1067.71USN-8096-1

Affected products (as reported)

VendorProductVersions
Linux Linux 8bc1901ca7b07d864fca11461b3875b31f949765 – before 0cf9a50af91fbdac3849f8d950e883a3eaa3ecea8bc1901ca7b07d864fca11461b3875b31f949765 – before 37158ce6ba964b62d1e3eebd11f03c6900a52dd18bc1901ca7b07d864fca11461b3875b31f949765 – before ea37884097a0931abb8e11e40eacfb25e9fdb5e98bc1901ca7b07d864fca11461b3875b31f949765 – before 9c52f01429c377a2d32cafc977465f37b5384f778bc1901ca7b07d864fca11461b3875b31f949765 – before fdf573c517627a96f5040f988e9b21267806be5c8bc1901ca7b07d864fca11461b3875b31f949765 – before 87c5ff5615dc0a37167e8faf3adeeddc6f1344a3
Linux Linux 5.3

References