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Vulnerability · Published Feb 26, 2025 · Assigned by Linux

CVE-2022-49099Drivers: hv: vmbus: Fix initialization of device object in vmbus_device_register()

Medium 5.5

In plain English

A medium-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 11% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 88.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

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 ]---

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.17.3-1DEBIAN-CVE-2022-49099
Debian:13linux5.17.3-1DEBIAN-CVE-2022-49099
Debian:14linux5.17.3-1DEBIAN-CVE-2022-49099
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-azure5.15.0-1010.12UBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2022-49099
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2022-49099
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2022-49099

Affected products (as reported)

VendorProductVersions
Linux Linux 743b237c3a7b0f5b44aa704aae8a1058877b6322 – before 2fe4b8631427618175a32f125062df91a5fe3f73743b237c3a7b0f5b44aa704aae8a1058877b6322 – before 3a5469582c241abca22500f36a9cb8e9331969cf
Linux Linux 5.17

References