CVE-2022-49968ieee802154/adf7242: defer destroy_workqueue call
- 8.0HighCVSS base score
- 0.23%Exploitation in 30 daysEPSS · top 87% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: ieee802154/adf7242: defer destroy_workqueue call There is a possible race condition (use-after-free) like below (FREE) | (USE) adf7242_remove | adf7242_channel cancel_delayed_work_sync | destroy_workqueue (1) | adf7242_cmd_rx | mod_delayed_work (2) | The root cause for this race is that the upper layer (ieee802154) is unaware of this detaching event and the function adf7242_channel can be called without any checks. To fix this, we can add a flag write at the beginning of adf7242_remove and add flag check in adf7242_channel. Or we can just defer the destructive operation like other commit 3e0588c291d6 ("hamradio: defer ax25 kfree after unregister_netdev") which let the ieee802154_unregister_hw() to handle the synchronization. This patch takes the second option. runs")
Timeline
ID reserved
By Linux
Published
- 14 months later
· 14 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High8.0 | CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | Medium4.7 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.23% · top 87% of all CVEs (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.0.
Affected products
- affected 58e9683d14752debc6f22daf6b23e031787df31f – < dede80aaf01f4b6e8657d23726cb4a3da226ec4c
- affected 58e9683d14752debc6f22daf6b23e031787df31f – < bed12d7531df1417fc92c691999ff95e03835008
- affected 58e9683d14752debc6f22daf6b23e031787df31f – < 23a29932715ca43bceb2eae1bdb770995afe7271
- affected 58e9683d14752debc6f22daf6b23e031787df31f – < 9f8558c5c642c62c450c98c99b7d18a709fff485
- affected 58e9683d14752debc6f22daf6b23e031787df31f – < 15f3b89bd521d5770d36a61fc04a77c293138ba6
- affected 58e9683d14752debc6f22daf6b23e031787df31f – < afe7116f6d3b888778ed6d95e3cf724767b9aedf
- affected a2363e2d88bf50022ee643c49ee5d4f7e8c915ea
- affected 4.17.19 – < 4.18
- affected 4.18
- unaffected < 4.18
- unaffected 4.19.258 – ≤ 4.19.*
- unaffected 5.4.213 – ≤ 5.4.*
- unaffected 5.10.142 – ≤ 5.10.*
- unaffected 5.15.66 – ≤ 5.15.*
- unaffected 5.19.8 – ≤ 5.19.*
- unaffected 6.0 – ≤ *
References
References6
- https://git.kernel.org/stable/c/dede80aaf01f4b6e8657d23726cb4a3da226ec4c (opens in a new tab)
- https://git.kernel.org/stable/c/bed12d7531df1417fc92c691999ff95e03835008 (opens in a new tab)
- https://git.kernel.org/stable/c/23a29932715ca43bceb2eae1bdb770995afe7271 (opens in a new tab)
- https://git.kernel.org/stable/c/9f8558c5c642c62c450c98c99b7d18a709fff485 (opens in a new tab)
- https://git.kernel.org/stable/c/15f3b89bd521d5770d36a61fc04a77c293138ba6 (opens in a new tab)
- https://git.kernel.org/stable/c/afe7116f6d3b888778ed6d95e3cf724767b9aedf (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2022-55249 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2022-49968)Record last updated .