Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Linux Linux — ieee802154/adf7242: defer destroy_workqueue call
AV AC PR UI S C I A CVSS EPSS %ile KEV
L H L N U N N H 4.7 .0022 13.1 —
AFFECTED
Product Versions Fixed
Linux 58e9683d14752debc6f22daf6b23e031787df31f – —
Linux 4.18 – 4.19.258
TIMELINE
Jun 18 Reserved by Linux
Jun 18 Published (CNA: Linux)
Aug 4 RESCORED — CVE-2022-49968 (Linux). CVSS 8 → 4.7 (NVD).
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")
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| June 18, 2025 | Reserved | Reserved by Linux |
| June 18, 2025 | Published | Published (CNA: Linux) |
| August 4, 2026 | RESCORED | RESCORED — CVE-2022-49968 (Linux). CVSS 8 → 4.7 (NVD). |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Linux | Linux | — | 58e9683d14752debc6f22daf6b23e031787df31f | — |
| Linux | Linux | — | 4.18 | 4.19.258 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2022-49968 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.