CVE-2026-31727

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-31727
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: u_ether: Fix NULL pointer deref in eth_get_drvinfo Commit ec35c1969650 ("usb: gadget: f_ncm: Fix net_device lifecycle with device_move") reparents the gadget device to /sys/devices/virtual during unbind, clearing the gadget pointer. If the userspace tool queries on the surviving interface during this detached window, this leads to a NULL pointer dereference. Unable to handle kernel NULL pointer dereference Call trace: eth_get_drvinfo+0x50/0x90 ethtool_get_drvinfo+0x5c/0x1f0 __dev_ethtool+0xaec/0x1fe0 dev_ethtool+0x134/0x2e0 dev_ioctl+0x338/0x560 Add a NULL check for dev->gadget in eth_get_drvinfo(). When detached, skip copying the fw_version and bus_info strings, which is natively handled by ethtool_get_drvinfo for empty strings.

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/0326429e8ba99892e1d1e115dc8e88e1a3b64e24 Patch
https://git.kernel.org/stable/c/7de4d46be40738c7e48e64b5cc0a34aa1e047b0a Patch
https://git.kernel.org/stable/c/a36e5e800b9c93e3e1ffa42f34d38b36775dbcee Patch
https://git.kernel.org/stable/c/e002e92e88e12457373ed096b18716d97e7bbb20 Patch
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:7.0:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
History

07 May 2026, 16:20

Type Values Removed Values Added
CPE cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
First Time Linux linux Kernel
Linux
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CWE CWE-476
References () https://git.kernel.org/stable/c/0326429e8ba99892e1d1e115dc8e88e1a3b64e24 - () https://git.kernel.org/stable/c/0326429e8ba99892e1d1e115dc8e88e1a3b64e24 - Patch
References () https://git.kernel.org/stable/c/7de4d46be40738c7e48e64b5cc0a34aa1e047b0a - () https://git.kernel.org/stable/c/7de4d46be40738c7e48e64b5cc0a34aa1e047b0a - Patch
References () https://git.kernel.org/stable/c/a36e5e800b9c93e3e1ffa42f34d38b36775dbcee - () https://git.kernel.org/stable/c/a36e5e800b9c93e3e1ffa42f34d38b36775dbcee - Patch
References () https://git.kernel.org/stable/c/e002e92e88e12457373ed096b18716d97e7bbb20 - () https://git.kernel.org/stable/c/e002e92e88e12457373ed096b18716d97e7bbb20 - Patch

01 May 2026, 15:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-05-01 15:16

Updated : 2026-05-07 16:20

NVD link : CVE-2026-31727

Mitre link : CVE-2026-31727

CVE.ORG link : CVE-2026-31727

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-476

NULL Pointer Dereference