CVE-2026-31606
- Source
- https://cve.org/CVERecord?id=CVE-2026-31606
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-31606.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-31606
- Downstream
- Related
- Published
- 2026-04-24T14:42:28.792Z
- Modified
- 2026-06-18T03:54:35.060649825Z
- Summary
- usb: gadget: f_hid: don't call cdev_init while cdev in use
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
usb: gadget: fhid: don't call cdevinit while cdev in use
When calling unbind, then bind again, cdev_init reinitialized the cdev, even though there may still be references to it. That's the case when the /dev/hidg* device is still opened. This obviously unsafe behavior like oopes.
This fixes this by using cdevalloc to put the cdev on the heap. That way, we can simply allocate a new one in hidgbind.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31606.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/stable/c/5a229016ca3ac551294ec59770be9da94ec4bf63
- https://git.kernel.org/stable/c/75ecc46828ec377dd5692c677168ef6d64fd7123
- https://git.kernel.org/stable/c/81ebd43cc0d6d106ce7b6ccbf7b5e40ca7f5503d
- https://git.kernel.org/stable/c/c6c0d13db5d0f8d465eabc14bd23d2b6a7247a43
- https://git.kernel.org/stable/c/eb6ef6185f2054a341ec70d7e2165f5381744215
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31606.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-31606
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedcb382536052fcc7713988869b54a81137069e5a9Fixedc6c0d13db5d0f8d465eabc14bd23d2b6a7247a43Fixedeb6ef6185f2054a341ec70d7e2165f5381744215Fixed5a229016ca3ac551294ec59770be9da94ec4bf63Fixed75ecc46828ec377dd5692c677168ef6d64fd7123Fixed81ebd43cc0d6d106ce7b6ccbf7b5e40ca7f5503d