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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-31606

usb: gadget: f_hid: don't call cdev_init while cdev in use

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f_hid: don't call cdev_init 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 cdev_alloc to put the cdev on the heap. That way, we can simply allocate a new one in hidg_bind.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • cb382536052fcc7713988869b54a81137069e5a9 to < 92f23ab86d9524bc51dae25ed916d0e69dce5992affected
  • cb382536052fcc7713988869b54a81137069e5a9 to < 3aa77f5da0ecb00895411f4246d8a3e4db0343c2affected
  • cb382536052fcc7713988869b54a81137069e5a9 to < c6c0d13db5d0f8d465eabc14bd23d2b6a7247a43affected
  • cb382536052fcc7713988869b54a81137069e5a9 to < eb6ef6185f2054a341ec70d7e2165f5381744215affected
  • cb382536052fcc7713988869b54a81137069e5a9 to < 5a229016ca3ac551294ec59770be9da94ec4bf63affected
  • cb382536052fcc7713988869b54a81137069e5a9 to < 75ecc46828ec377dd5692c677168ef6d64fd7123affected
  • cb382536052fcc7713988869b54a81137069e5a9 to < 81ebd43cc0d6d106ce7b6ccbf7b5e40ca7f5503daffected

Linux Linux

Default version status: affected

  • 3.19affected
  • 0 to < 3.19unaffected
  • 6.1.191 to ≤ 6.1.*unaffected
  • 6.6.160 to ≤ 6.6.*unaffected
  • 6.12.83 to ≤ 6.12.*unaffected
  • 6.18.24 to ≤ 6.18.*unaffected
  • 6.19.14 to ≤ 6.19.*unaffected
  • 7.0.1 to ≤ 7.0.*unaffected
  • 7.1 to ≤ *unaffected

References