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VULNERABILITIES

CVE-2026-80691 Details

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: target: iblock: Fix wrong PR ops NULL check for PREEMPT/RELEASE In the iblock_execute_pr_out() function, PRO_PREEMPT, PRO_PREEMPT_AND_ABORT, and PRO_RELEASE all perform callback capability checks through ops->pr_clear. The error check allows unimplemented hooks to pass through the gate, resulting dereferencing a NULL function pointer. Check whether the hooks that need to be called are supported.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: kernel.orgCVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://git.kernel.org/stable/c/3c60a8b4037dc35e365658fcbcb349a5d742ff49 kernel.org
https://git.kernel.org/stable/c/9c33222bd387312874fbe36ca8002e5c945b9653 kernel.org
https://git.kernel.org/stable/c/a326b19cfb7775378b50acaa8d836ba44e29b4c2 kernel.org
https://git.kernel.org/stable/c/bdd8a1297ef101bb5ac57e53b4fbe5e364afd8b1 kernel.org
https://git.kernel.org/stable/c/f15bcf9a99b1b2683fcfa005b9b3680b5600581f kernel.org

Weakness Enumeration

No weakness enumeration is available for this CVE.

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-80691
NVD Published Date:
Aug 28, 2026
NVD Last Modified:
Aug 29, 2026
Source:
kernel.org
CVE-2026-80691 Details - Not Deferred