medium5.5
CVE-2021-47258
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_…
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | before 4.9.273 from 4.10 before 4.14.237 from 4.15 before 4.19.195 from 4.20 before 5.4.126 from 5.5 before 5.10.44 from 5.11 before 5.12.11 |
Weakness classification
References
- NVD record
- CVE.org record
- https://git.kernel.org/stable/c/2dc85045ae65b9302a1d2e2ddd7ce4c030153a6a
- https://git.kernel.org/stable/c/45d83db4728127944b237c0c8248987df9d478e7
- https://git.kernel.org/stable/c/66a834d092930cf41d809c0e989b13cd6f9ca006
- https://git.kernel.org/stable/c/79296e292d67fa7b5fb8d8c27343683e823872c8
- https://git.kernel.org/stable/c/7a696ce1d5d16a33a6cd6400bbcc0339b2460e11
- https://git.kernel.org/stable/c/8958181c1663e24a13434448e7d6b96b5d04900a
- https://git.kernel.org/stable/c/db08ce595dd64ea9859f7d088b51cbfc8e685c66
- https://git.kernel.org/stable/c/2dc85045ae65b9302a1d2e2ddd7ce4c030153a6a
- https://git.kernel.org/stable/c/45d83db4728127944b237c0c8248987df9d478e7
- https://git.kernel.org/stable/c/66a834d092930cf41d809c0e989b13cd6f9ca006
- https://git.kernel.org/stable/c/79296e292d67fa7b5fb8d8c27343683e823872c8
- https://git.kernel.org/stable/c/7a696ce1d5d16a33a6cd6400bbcc0339b2460e11
- https://git.kernel.org/stable/c/8958181c1663e24a13434448e7d6b96b5d04900a
- https://git.kernel.org/stable/c/db08ce595dd64ea9859f7d088b51cbfc8e685c66