Use after free vulnerability in scsi: libfc

Kernel Updated 02 Oct 2025

Summary

24/04/2022

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2022-1001045: scsi: libfc: Fix use after free in fc_exch_abts_resp(). Affects Kernel versions < 412dd8299b02e4410fe77b8396953c1a8dde183a. No fix is published. How to fix ↓

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Background

The scsi: libfc is a component of the Linux Kernel that provides a library for Fibre Channel (FC) transport protocol. It is responsible for handling FC exchanges and managing FC frame exchanges between the initiator and target. The vulnerability in question is a use after free vulnerability that exists in the fc_exch_abts_resp() function of libfc.

Vulnerability Detail

The use after free vulnerability in fc_exch_abts_resp() occurs when a pointer to a freed memory object is still accessed. An attacker could potentially exploit this vulnerability by manipulating the freed memory object to execute arbitrary code or cause a denial of service. The impact and attack plausibility of this vulnerability have not been proven yet.

How To Fix

No fixed version is published for this vulnerability.

The use after free vulnerability in fc_exch_abts_resp() has been fixed in Linux Kernel version v5.17.3 by commit 412dd8299b02e4410fe77b8396953c1a8dde183a. To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.17.3 or later.

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Conclusion

The use after free vulnerability in scsi: libfc has been addressed in Linux Kernel version v5.17.3. It is crucial to update the Linux Kernel to the fixed version to mitigate the risk of exploitation. For further support on vulnerability remediation, please contact DevNack.com.

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