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CVE-2022-49968— ieee802154/adf7242: defer destroy_workqueue call

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于销毁工作队列时存在竞争条件，可能导致释放后重用。

CVSS 8.0 · High EPSS 0.23% · P13

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux 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
… +8 more rows
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I. Basic Information for CVE-2022-49968

Vulnerability Information
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Vulnerability Title
ieee802154/adf7242: defer destroy_workqueue call
Source: CVE Program / CVE List V5
Vulnerability 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")
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于销毁工作队列时存在竞争条件，可能导致释放后重用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 58e9683d14752debc6f22daf6b23e031787df31f ~ dede80aaf01f4b6e8657d23726cb4a3da226ec4c -
Linux Linux 4.18 -

II. Public POCs for CVE-2022-49968

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III. Intelligence Information for CVE-2022-49968

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Same Patch Batch · Linux · 2025-06-18 · 362 CVEs total

CVE-2025-38075 9.8 CRITICAL scsi: target: iscsi: Fix timeout on deleted connection
CVE-2022-50098 8.8 HIGH scsi: qla2xxx: Fix crash due to stale SRB access around I/O timeouts
CVE-2022-49934 8.8 HIGH wifi: mac80211: Fix UAF in ieee80211_scan_rx()
CVE-2022-50164 8.8 HIGH wifi: iwlwifi: mvm: fix double list_add at iwl_mvm_mac_wake_tx_queue
CVE-2025-38074 8.8 HIGH vhost-scsi: protect vq->log_used with vq->mutex
CVE-2022-49974 8.8 HIGH HID: nintendo: fix rumble worker null pointer deref
CVE-2025-38016 8.8 HIGH HID: bpf: abort dispatch if device destroyed
CVE-2025-38052 8.8 HIGH net/tipc: fix slab-use-after-free Read in tipc_aead_encrypt_done
CVE-2025-38078 7.8 HIGH ALSA: pcm: Fix race of buffer access at PCM OSS layer
CVE-2022-50028 7.8 HIGH gadgetfs: ep_io - wait until IRQ finishes
CVE-2022-49939 7.8 HIGH binder: fix UAF of ref->proc caused by race condition
CVE-2022-49935 7.8 HIGH dma-buf/dma-resv: check if the new fence is really later
CVE-2022-49948 7.8 HIGH vt: Clear selection before changing the font
CVE-2025-38082 7.8 HIGH gpio: virtuser: fix potential out-of-bound write
CVE-2022-50182 7.8 HIGH media: imx-jpeg: Align upwards buffer size
CVE-2025-38080 7.8 HIGH drm/amd/display: Increase block_sequence array size
CVE-2025-38058 7.8 HIGH __legitimize_mnt(): check for MNT_SYNC_UMOUNT should be under mount_lock
CVE-2025-38065 7.8 HIGH orangefs: Do not truncate file size
CVE-2025-38062 7.8 HIGH genirq/msi: Store the IOMMU IOVA directly in msi_desc instead of iommu_cookie
CVE-2025-38068 7.8 HIGH crypto: lzo - Fix compression buffer overrun

Showing top 20 of 362 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-49968

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