What’s Vulnerable › Vulnerabilities

CVE-2026-89626: HID: sensor: custom: Fix field sysfs group cleanup on failure

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-11 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: HID: sensor: custom: Fix field sysfs group cleanup on failure hid_sensor_custom_add_attributes() creates one sysfs group for each custom sensor field. If sysfs_create_group() fails after some groups have already been created, the function returns the error without removing the previously created groups. Add a local unwind path to remove the groups that were already created. With enable_sensor exposed only after the field attributes are ready, this path can free sensor_inst->fields without leaving enable_sensor able to access pointers into that array.

Affected products

• Linux kernel: 4.1 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/10b05fafff932e325896d59dde40938954ab4577
• https://git.kernel.org/stable/c/2409779f3096fcef41bcf57b5f4887d0fa0dc8dd
• https://git.kernel.org/stable/c/3789d0802ddb4b3be04062caf4bfadd23496e9a7
• https://git.kernel.org/stable/c/416194933af63bd58d03b7605b1ebc1711186838
• https://git.kernel.org/stable/c/79154fad98ee843e5363940841e2d831503c190a
• https://git.kernel.org/stable/c/d0e15091e88d18e30b67daf85b88f6528bb9bf41
• https://git.kernel.org/stable/c/d96f8958d4469ac02d9c563686cdd968005b944d
• https://git.kernel.org/stable/c/f3f37b937a6ea2a00fb5e6189e74f855caa43eb5

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