CVE-2026-31606
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2026-04-24
Modified: 2026-10-30
First seen: 2026-10-30
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
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 Software (9)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | cb382536052fcc7713988869b54a81137069e5a9 < 92f23ab86d9524bc51dae25ed916d0e69dce5992 |
| Linux | Linux | cb382536052fcc7713988869b54a81137069e5a9 < 3aa77f5da0ecb00895411f4246d8a3e4db0343c2 |
| Linux | Linux | cb382536052fcc7713988869b54a81137069e5a9 < c6c0d13db5d0f8d465eabc14bd23d2b6a7247a43 |
| Linux | Linux | cb382536052fcc7713988869b54a81137069e5a9 < eb6ef6185f2054a341ec70d7e2165f5381744215 |
| Linux | Linux | cb382536052fcc7713988869b54a81137069e5a9 < 5a229016ca3ac551294ec59770be9da94ec4bf63 |
| Linux | Linux | cb382536052fcc7713988869b54a81137069e5a9 < 75ecc46828ec377dd5692c677168ef6d64fd7123 |
| Linux | Linux | cb382536052fcc7713988869b54a81137069e5a9 < 81ebd43cc0d6d106ce7b6ccbf7b5e40ca7f5503d |
| Linux | Linux | 3.19 |
| linux | linux_kernel | 3.19 – 6.12.83 |