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VulnerabilityPublished Updated

CVE-2026-43170: Linux kernel · usb: dwc3: gadget: Move vbus draw to workqueue context

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in b214f0b11a0f1186f83c284f6a545110f76066b6 : update Linux kernel when convenient.

Data as of 30 Oct 2026, 12:49 UTC

Severity
Medium

Rated Medium by Threat Radar's AI analysis · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none
Patch
Available – fixed in b214f0b11a0f1186f83c284f6a545110f76066b6, a7a80c25b65112768eeba58a7af129d3c52a6d90, 2333653ef854c2cc124077f71a8526f03bf6e06a +3

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 99288de36020c5a6976df77e53ac449b0f75c97f, < b214f0b11a0f1186f83c284f6a545110f76066b6
Fixed in
  • b214f0b11a0f1186f83c284f6a545110f76066b6
LinuxLinuxAffected
  • ≥ 99288de36020c5a6976df77e53ac449b0f75c97f, < a7a80c25b65112768eeba58a7af129d3c52a6d90
Fixed in
  • a7a80c25b65112768eeba58a7af129d3c52a6d90
LinuxLinuxAffected
  • ≥ 99288de36020c5a6976df77e53ac449b0f75c97f, < 2333653ef854c2cc124077f71a8526f03bf6e06a
Fixed in
  • 2333653ef854c2cc124077f71a8526f03bf6e06a
LinuxLinuxAffected
  • ≥ 99288de36020c5a6976df77e53ac449b0f75c97f, < 76c1123ffccfaba95cf4ecc2a50f95504a522424
Fixed in
  • 76c1123ffccfaba95cf4ecc2a50f95504a522424
LinuxLinuxAffected
  • ≥ 99288de36020c5a6976df77e53ac449b0f75c97f, < 74a231e3d99d310497ab0ccb359539a6063b316a
Fixed in
  • 74a231e3d99d310497ab0ccb359539a6063b316a
LinuxLinuxAffected
  • ≥ 99288de36020c5a6976df77e53ac449b0f75c97f, < 54aaa3b387c2f580a99dc86a9cc2eb6dfaf599a7
Fixed in
  • 54aaa3b387c2f580a99dc86a9cc2eb6dfaf599a7

AI-suggested

A fix is available and has been applied in Linux kernel versions after 5.13. Users should update to a fixed kernel version that includes the patch moving vbus draw to a workqueue context to prevent kernel panics related to this issue.

Description

A vulnerability in the Linux kernel's USB DWC3 gadget driver was fixed by moving the vbus draw operation to a workqueue context. Previously, the function dwc3_gadget_vbus_draw() could be called from an atomic context but invoked power-supply-core APIs that may sleep, potentially causing a kernel panic. The fix involves deferring this operation to a workqueue to avoid sleeping in atomic context.

References

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