CVEvulnerability

CVE-2021-46979

5.5 MEDIUM Published 2024-02-28 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2024-02-28
Last modified
2026-06-17
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-415

Description

In the Linux kernel, the following vulnerability has been resolved: iio: core: fix ioctl handlers removal Currently ioctl handlers are removed twice. For the first time during iio_device_unregister() then later on inside iio_device_unregister_eventset() and iio_buffers_free_sysfs_and_mask(). Double free leads to kernel panic. Fix this by not touching ioctl handlers list directly but rather letting code responsible for registration call the matching cleanup routine itself.

Affected configurations

• linux linux kernel (>= 5.11 < 5.11.22) • linux linux kernel (>= 5.12 < 5.12.5) • linux linux kernel 5.13

Related

Weakness · CWE (1)

References