CVE-2022-3176

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Source
https://nvd.nist.gov/vuln/detail/CVE-2022-3176
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-3176.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-3176
Downstream
Related
Published
2022-09-16T14:15:09Z
Modified
2025-08-09T20:01:26Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

There exists a use-after-free in iouring in the Linux kernel. Signalfdpoll() and binderpoll() use a waitqueue whose lifetime is the current task. It will send a POLLFREE notification to all waiters before the queue is freed. Unfortunately, the iouring poll doesn't handle POLLFREE. This allows a use-after-free to occur if a signalfd or binder fd is polled with io_uring poll, and the waitqueue gets freed. We recommend upgrading past commit fc78b2fc21f10c4c9c4d5d659a685710ffa63659

References

Affected packages