CVE-2026-31606
Published: Apr 24, 2026
Modified: May 11, 2026
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.
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected cb382536052fcc7713988869b54a81137069e5a9 - < c6c0d13db5d0f8d465eabc14bd23d2b6a7247a43affected cb382536052fcc7713988869b54a81137069e5a9 - < eb6ef6185f2054a341ec70d7e2165f5381744215affected cb382536052fcc7713988869b54a81137069e5a9 - < 5a229016ca3ac551294ec59770be9da94ec4bf63affected cb382536052fcc7713988869b54a81137069e5a9 - < 75ecc46828ec377dd5692c677168ef6d64fd7123affected cb382536052fcc7713988869b54a81137069e5a9 - < 81ebd43cc0d6d106ce7b6ccbf7b5e40ca7f5503d |
Linux | Linux | affected 3.19unaffected 0 - < 3.19unaffected 6.12.83 - <= 6.12.*unaffected 6.18.24 - <= 6.18.*unaffected 6.19.14 - <= 6.19.*+2 more versions |
References
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