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Vulnerability · Published Mar 7, 2025 · Assigned by Linux

CVE-2025-21838usb: gadget: core: flush gadget workqueue after device removal

Medium 5.5

In plain English

A medium-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 11% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 89.0% 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: usb: gadget: core: flush gadget workqueue after device removal device_del() can lead to new work being scheduled in gadget->work workqueue. This is observed, for example, with the dwc3 driver with the following call stack: device_del() gadget_unbind_driver() usb_gadget_disconnect_locked() dwc3_gadget_pullup() dwc3_gadget_soft_disconnect() usb_gadget_set_state() schedule_work(&gadget->work) Move flush_work() after device_del() to ensure the workqueue is cleaned up.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.133-1DEBIAN-CVE-2025-21838
Debian:12linux6.1.133-1DSA-5900-1
Debian:13linux6.12.16-1DEBIAN-CVE-2025-21838
Debian:14linux6.12.16-1DEBIAN-CVE-2025-21838
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2025-21838
Ubuntu:24.04:LTSlinux6.8.0-78.78USN-7703-1
Ubuntu:24.04:LTSlinux6.8.0-78.78UBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2025-21838
Ubuntu:24.04:LTSlinux-aws6.8.0-1035.37USN-7703-1
Ubuntu:24.04:LTSlinux-aws6.8.0-1035.37UBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1035.37~22.04.1USN-7703-2
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1035.37~22.04.1UBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2025-21838
Ubuntu:24.04:LTSlinux-azure6.8.0-1034.39UBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-21838
Ubuntu:24.04:LTSlinux-azure-6.116.11.0-1015.15~24.04.1UBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1034.39~22.04.1UBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-21838
Ubuntu:24.04:LTSlinux-azure-nvidia6.8.0-1022.23UBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2025-21838
Ubuntu:24.04:LTSlinux-gcp6.8.0-1036.38UBUNTU-CVE-2025-21838
Ubuntu:24.04:LTSlinux-gcp6.8.0-1036.38USN-7703-2
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-21838
Ubuntu:24.04:LTSlinux-gcp-6.116.11.0-1015.15~24.04.1UBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1036.38~22.04.1USN-7703-2
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1036.38~22.04.1UBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2025-21838
Ubuntu:24.04:LTSlinux-gke6.8.0-1032.36UBUNTU-CVE-2025-21838
Ubuntu:24.04:LTSlinux-gke6.8.0-1032.36USN-7703-4
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2025-21838
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1019.21USN-7703-2
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1019.21UBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-21838
Ubuntu:24.04:LTSlinux-hwe-6.116.11.0-26.26~24.04.1UBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-78.78~22.04.1UBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-78.78~22.04.1USN-7703-4
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2025-21838
Ubuntu:24.04:LTSlinux-ibm6.8.0-1033.33UBUNTU-CVE-2025-21838
Ubuntu:24.04:LTSlinux-ibm6.8.0-1033.33USN-7703-2
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1033.33~22.04.1UBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1033.33~22.04.1USN-7703-2
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2025-21838
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-78.78.1UBUNTU-CVE-2025-21838
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-78.78.1USN-7703-1
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-21838
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.116.11.0-1014.15~24.04.1UBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-78.78.1~22.04.1USN-7703-1
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-78.78.1~22.04.1UBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2025-21838
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1035.38USN-7703-4
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1035.38UBUNTU-CVE-2025-21838
Ubuntu:24.04:LTSlinux-nvidia-6.116.11.0-1010.10UBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1035.38~22.04.1UBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1035.38~22.04.1USN-7703-4
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1035.38.1USN-7703-4
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1035.38.1UBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2025-21838
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1009.9UBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-21838
Ubuntu:24.04:LTSlinux-oem-6.116.11.0-1022.22UBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-21838
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2025-21838
Ubuntu:24.04:LTSlinux-oracle6.8.0-1032.33UBUNTU-CVE-2025-21838
Ubuntu:24.04:LTSlinux-oracle6.8.0-1032.33USN-7703-3
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1032.33~22.04.1USN-7703-3
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1032.33~22.04.1UBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2025-21838
Ubuntu:24.04:LTSlinux-raspi6.8.0-1035.39UBUNTU-CVE-2025-21838
Ubuntu:24.04:LTSlinux-raspi6.8.0-1035.39USN-7703-4
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-21838
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-21838
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-78.78~22.04.1UBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-21838
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1017.18UBUNTU-CVE-2025-21838
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2025-21838

Affected products (as reported)

VendorProductVersions
Linux Linux 5702f75375aa9ecf8ad3431aef3fe6ce8c8dbd15 – before e3bc1a9a67ce33a2e761e6e7b7c2afc6cb9b72665702f75375aa9ecf8ad3431aef3fe6ce8c8dbd15 – before 859cb45aefa6de823b2fa7f229fe6d9562c9f3b75702f75375aa9ecf8ad3431aef3fe6ce8c8dbd15 – before f894448f3904d7ad66fecef8f01fe0172629e0915702f75375aa9ecf8ad3431aef3fe6ce8c8dbd15 – before 97695b5a1b5467a4f91194db12160f56da445dfe5702f75375aa9ecf8ad3431aef3fe6ce8c8dbd15 – before 399a45e5237ca14037120b1b895bd38a3b4492ea
Linux Linux 3.12

References