vulnerability
Red Hat: CVE-2021-47480: kernel: scsi: core: Put LLD module refcnt after SCSI device is released
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:L/AC:L/Au:M/C:C/I:N/A:C) | May 22, 2024 | Jul 9, 2025 | Jul 10, 2025 |
Severity
6
CVSS
(AV:L/AC:L/Au:M/C:C/I:N/A:C)
Published
May 22, 2024
Added
Jul 9, 2025
Modified
Jul 10, 2025
Description
In the Linux kernel, the following vulnerability has been resolved:
scsi: core: Put LLD module refcnt after SCSI device is released
SCSI host release is triggered when SCSI device is freed. We have to make
sure that the low-level device driver module won't be unloaded before SCSI
host instance is released because shost->hostt is required in the release
handler.
Make sure to put LLD module refcnt after SCSI device is released.
Fixes a kernel panic of 'BUG: unable to handle page fault for address'
reported by Changhui and Yi.
Solution
no-fix-redhat-rpm-package
References
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