NULL pointer dereference in Linux
CVE-2022-49805
In the Linux kernel, the following vulnerability has been resolved: net: lan966x: Fix potential null-ptr-deref in lan966x_stats_init() lan966x_stats_init() calls create_singlethread_workqueue() and not checked the ret value, which may return NULL. And a null-ptr-deref may happen: lan966x_stats_init() create_singlethread_workqueue() # failed, lan966x->stats_queue is NULL queue_delayed_work() queue_delayed_work_on() __queue_delayed_work() # warning here, but continue __queue_work() # access wq->flags, null-ptr-deref Check the ret value and return -ENOMEM if it is NULL.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.002 (5.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 5.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
- Linux — versions 12c2d0a5b8e2a1afc8c7738e19a0d1dd7f3d4007, 5.17, 0
- Linux Kernel — versions 6.1
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2022-49805?
- CVE-2022-49805 is a medium-severity vulnerability in Linux, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2025-05-01.
- How severe is CVE-2022-49805?
- Medium severity. CVSS v3 base score is 5.5 out of 10.