CVE-2022-49099
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
26/02/2025
Last modified:
26/02/2025
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
Drivers: hv: vmbus: Fix initialization of device object in vmbus_device_register()<br />
<br />
Initialize the device&#39;s dma_{mask,parms} pointers and the device&#39;s<br />
dma_mask value before invoking device_register(). Address the<br />
following trace with 5.17-rc7:<br />
<br />
[ 49.646839] WARNING: CPU: 0 PID: 189 at include/linux/dma-mapping.h:543<br />
netvsc_probe+0x37a/0x3a0 [hv_netvsc]<br />
[ 49.646928] Call Trace:<br />
[ 49.646930] <br />
[ 49.646935] vmbus_probe+0x40/0x60 [hv_vmbus]<br />
[ 49.646942] really_probe+0x1ce/0x3b0<br />
[ 49.646948] __driver_probe_device+0x109/0x180<br />
[ 49.646952] driver_probe_device+0x23/0xa0<br />
[ 49.646955] __device_attach_driver+0x76/0xe0<br />
[ 49.646958] ? driver_allows_async_probing+0x50/0x50<br />
[ 49.646961] bus_for_each_drv+0x84/0xd0<br />
[ 49.646964] __device_attach+0xed/0x170<br />
[ 49.646967] device_initial_probe+0x13/0x20<br />
[ 49.646970] bus_probe_device+0x8f/0xa0<br />
[ 49.646973] device_add+0x41a/0x8e0<br />
[ 49.646975] ? hrtimer_init+0x28/0x80<br />
[ 49.646981] device_register+0x1b/0x20<br />
[ 49.646983] vmbus_device_register+0x5e/0xf0 [hv_vmbus]<br />
[ 49.646991] vmbus_add_channel_work+0x12d/0x190 [hv_vmbus]<br />
[ 49.646999] process_one_work+0x21d/0x3f0<br />
[ 49.647002] worker_thread+0x4a/0x3b0<br />
[ 49.647005] ? process_one_work+0x3f0/0x3f0<br />
[ 49.647007] kthread+0xff/0x130<br />
[ 49.647011] ? kthread_complete_and_exit+0x20/0x20<br />
[ 49.647015] ret_from_fork+0x22/0x30<br />
[ 49.647020] <br />
[ 49.647021] ---[ end trace 0000000000000000 ]---