CVE-2026-31606

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.
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

History

29 Apr 2026, 20:00

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/5a229016ca3ac551294ec59770be9da94ec4bf63 - () https://git.kernel.org/stable/c/5a229016ca3ac551294ec59770be9da94ec4bf63 - Patch
References () https://git.kernel.org/stable/c/75ecc46828ec377dd5692c677168ef6d64fd7123 - () https://git.kernel.org/stable/c/75ecc46828ec377dd5692c677168ef6d64fd7123 - Patch
References () https://git.kernel.org/stable/c/81ebd43cc0d6d106ce7b6ccbf7b5e40ca7f5503d - () https://git.kernel.org/stable/c/81ebd43cc0d6d106ce7b6ccbf7b5e40ca7f5503d - Patch
References () https://git.kernel.org/stable/c/c6c0d13db5d0f8d465eabc14bd23d2b6a7247a43 - () https://git.kernel.org/stable/c/c6c0d13db5d0f8d465eabc14bd23d2b6a7247a43 - Patch
References () https://git.kernel.org/stable/c/eb6ef6185f2054a341ec70d7e2165f5381744215 - () https://git.kernel.org/stable/c/eb6ef6185f2054a341ec70d7e2165f5381744215 - Patch
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 5.5
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CWE NVD-CWE-noinfo
First Time Linux
Linux linux Kernel

27 Apr 2026, 12:16

Type Values Removed Values Added
References
  • () https://git.kernel.org/stable/c/81ebd43cc0d6d106ce7b6ccbf7b5e40ca7f5503d -

24 Apr 2026, 15:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-04-24 15:16

Updated : 2026-04-29 20:00


NVD link : CVE-2026-31606

Mitre link : CVE-2026-31606

CVE.ORG link : CVE-2026-31606


JSON object : View

Products Affected

linux

  • linux_kernel