CVE-2022-49954: Input: iforce - wake up after clearing IFORCE_XMIT_RUNNING flag
Vulnerability summary
CVE-2022-49954 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 16.7% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 7 · Related 7Timeline
- 18-06-2025PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
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().
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.25%
Chance of exploitation in the next 30 days
Percentile
17%
Versus all other CVEs
30-day change
Increase +0.01 pp
From 0.25% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu111 products
- linuxAll versions (No fix recorded) | < 5.4.0-136.153 | < 5.15.0-57.63
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.4.0-1093.101 | < 5.15.0-1027.31
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ c2b27ef672992a206e5b221b8676972dd840ffa5, < d186c65599bff0222da37b9215784ddfe39f9e1b | ≥ c2b27ef672992a206e5b221b8676972dd840ffa5, < b271090eea3899399e2adcf79c9c95367d472b03 | ≥ c2b27ef672992a206e5b221b8676972dd840ffa5, < df1b53bc799d58f79701c465505a206c72ad4ab8 | ≥ c2b27ef672992a206e5b221b8676972dd840ffa5, < b533b9d3a0d1327cbb31c201dc8dbbf98c8bfe3c | ≥ c2b27ef672992a206e5b221b8676972dd840ffa5, < 98e01215708b6d416345465c09dce2bd4868c67a | 2.6.33
- linux_kernel≥ 2.6.34, < 5.4.213 | ≥ 5.5, < 5.10.142 | ≥ 5.11, < 5.15.66 | ≥ 5.16, < 5.19.8 | 2.6.33 | 2.6.33:rc3 | 2.6.33:rc4 | 2.6.33:rc5 | 2.6.33:rc6 | 2.6.33:rc7 | 2.6.33:rc8 | 6.0:rc1 | 6.0:rc2 | 6.0:rc3
Debian1 product
- linux< 6.0.2-1
3 vendors · 114 products