CVE-2021-47258

scsi: core: Fix error handling of scsi_host_alloc()

published May 21, 2024

CVSS
—
EPSS
0%
Percentile
13.8
In the wild
Unconfirmed
What it is

In the Linux kernel, the following vulnerability has been resolved:

scsi: core: Fix error handling of scsi_host_alloc()

After device is initialized via device_initialize(), or its name is set via

dev_set_name(), the device has to be freed via put_device(). Otherwise

device name will be leaked because it is allocated dynamically in

dev_set_name().

Fix the leak by replacing kfree() with put_device(). Since

scsi_host_dev_release() properly handles IDA and kthread removal, remove

special-casing these from the error handling as well.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00236 · 13.8th percentile
Published
2024-05-21T14:19Z
EPSS history
Timeline
  • 21 MAY 14:19Z
    scsi: core: Fix error handling of scsi_host_alloc()
    cvelistv5