PT-2024-11423 · Linux+2 · Linux Kernel+2
Mike Christie
·
Published
2021-10-04
·
Updated
2024-12-31
·
CVE-2021-47427
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A vulnerability has been resolved in the Linux kernel, specifically in the scsi: iscsi component. The issue arises from a use-after-free error in the
iscsi task due to changes in abort handling. The commit d39df158518c introduced iscsi get conn() and iscsi put conn() calls during abort handling but also altered the handling of already completed tasks, leading to the iscsi task use after free. This occurs because the common cleanup code performs a put on the iscsi task. The fix reverts the goto and moves the iscsi get conn() call to after the check for iscsi task validity.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Linux Kernel
Suse