CVE-2026-80691

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/3c60a8b4037dc35e365658fcbcb349a5d742ff49
https://git.kernel.org/stable/c/9c33222bd387312874fbe36ca8002e5c945b9653
https://git.kernel.org/stable/c/a326b19cfb7775378b50acaa8d836ba44e29b4c2
https://git.kernel.org/stable/c/bdd8a1297ef101bb5ac57e53b4fbe5e364afd8b1
https://git.kernel.org/stable/c/f15bcf9a99b1b2683fcfa005b9b3680b5600581f

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-28 08:16

Updated : 2026-08-29 07:16

NVD link : CVE-2026-80691

Mitre link : CVE-2026-80691

CVE.ORG link : CVE-2026-80691

JSON object : View

Products Affected

No product.

CWE

No CWE.

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