CVE-2021-46979
Published: Feb 28, 2024
Modified: May 11, 2026
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.
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected 8dedcc3eee3aceb37832176f0a1b03d5687acda3 - < 11e1cae5da4096552f7c091476cbadbc0d1817daaffected 8dedcc3eee3aceb37832176f0a1b03d5687acda3 - < ab6c935ba3a04317632f3b8b68675bdbaf395303affected 8dedcc3eee3aceb37832176f0a1b03d5687acda3 - < 901f84de0e16bde10a72d7eb2f2eb73fcde8fa1a |
Linux | Linux | affected 5.11unaffected 0 - < 5.11unaffected 5.11.22 - <= 5.11.*unaffected 5.12.5 - <= 5.12.*unaffected 5.13 - <= * |
Security Training
Train your team to recognize and prevent security threats with our comprehensive security awareness program.
Start TrainingVulnerability Scanning
Discover vulnerabilities in your applications and infrastructure before attackers do.
Scan Now