CVE-2022-49099

Medium

In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: Fix initialization of device object in vmbus_device_register() Initialize the device's dma_{mask,parms} pointers and the device's dma_mask value before invoking device_register(). Address the following trace with 5.17-rc7: [ 49.646839] WARNING: CPU: 0 PID: 189 at include/linux/dma-mapping.h:543 netvsc_probe+0x37a/0x3a0 [hv_netvsc] [ 49.646928] Call Trace: [ 49.646930] <TASK> [ 49.646935] vmbus_probe+0x40/0x60 [hv_vmbus] [ 49.646942] really_probe+0x1ce/0x3b0 [ 49.646948] __driver_probe_device+0x109/0x180 [ 49.646952] driver_probe_device+0x23/0xa0 [ 49.646955] __device_attach_driver+0x76/0xe0 [ 49.646958] ? driver_allows_async_probing+0x50/0x50 [ 49.646961] bus_for_each_drv+0x84/0xd0 [ 49.646964] __device_attach+0xed/0x170 [ 49.646967] device_initial_probe+0x13/0x20 [ 49.646970] bus_probe_device+0x8f/0xa0 [ 49.646973] device_add+0x41a/0x8e0 [ 49.646975] ? hrtimer_init+0x28/0x80 [ 49.646981] device_register+0x1b/0x20 [ 49.646983] vmbus_device_register+0x5e/0xf0 [hv_vmbus] [ 49.646991] vmbus_add_channel_work+0x12d/0x190 [hv_vmbus] [ 49.646999] process_one_work+0x21d/0x3f0 [ 49.647002] worker_thread+0x4a/0x3b0 [ 49.647005] ? process_one_work+0x3f0/0x3f0 [ 49.647007] kthread+0xff/0x130 [ 49.647011] ? kthread_complete_and_exit+0x20/0x20 [ 49.647015] ret_from_fork+0x22/0x30 [ 49.647020] </TASK> [ 49.647021] ---[ end trace 0000000000000000 ]---

Package Linux Kernel
Published 2025-02-26
Last modified 2025-10-14
CVSS version 3.1
Patch available
Yes

CVSS 3.1 score

5.5

out of 10
Medium
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-1188

CVE-2022-49099 is classified as CWE-1188

See CWE-1188 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 5.17 and later are affected. Fixed in 5.17.3, 5.18 and their respective stable series.

Affected from
≥ 5.17
Fixed in
✓ 5.17.3 5.17.x ✓ 5.18

References

The following references provide additional information about CVE-2022-49099 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Frequently asked questions

  • What is CVE-2022-49099?

    CVE-2022-49099 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.17 onward and has been patched in 5.17.3 and 5.18. CVE-2022-49099 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2022-49099?

    CVE-2022-49099 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H .

  • Is there a patch available for CVE-2022-49099?

    Yes — CVE-2022-49099 has been patched. Fixed versions include 5.17.3 and 5.18. If you are running Linux kernel 5.17 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2022-49099 actively exploited?

    No — CVE-2022-49099 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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