CVE-2026-80691
Published: September 3, 2026Last modified: September 3, 2026
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Not affected (6.1.33-r0) |
| 25 LTS | linux-lts | Fixed (6.12.103-r0) | |
| Stream | linux-lts | Fixed (6.18.46-r0) |
References
- 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