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CVE-2021-46979

iio: core: fix ioctl handlers removal PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
Linux / Linuxaffected 8dedcc3eee3aceb37832176f0a1b03d5687acda3 before 11e1cae5da4096552f7c091476cbadbc0d1817da; affected 8dedcc3eee3aceb37832176f0a1b03d5687acda3 before ab6c935ba3a04317632f3b8b68675bdbaf395303; affected 8dedcc3eee3aceb37832176f0a1b03d5687acda3 before 901f84de0e16bde10a72d7eb2f2eb73fcde8fa1a
Linux / Linuxaffected 5.11; unaffected 0 before 5.11; unaffected 5.11.22 through 5.11.*; unaffected 5.12.5 through 5.12.*; unaffected 5.13 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

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No references supplied.

CVE

No English description supplied.