CVE-2026-80691scsi: target: iblock: Fix wrong PR ops NULL check for PREEMPT/RELEASE
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 394f811848827ad23d2b43e94e5d72a24cfbc39f builds before 3c60a8b4037dc35e365658fcbcb349a5d742ff49; from 394f811848827ad23d2b43e94e5d72a24cfbc39f before a326b19cfb7775378b50acaa8d836ba44e29b4c2; from 394f811848827ad23d2b43e94e5d72a24cfbc39f before bdd8a1297ef101bb5ac57e53b4fbe5e364afd8b1; from 394f811848827ad23d2b43e94e5d72a24cfbc39f before f15bcf9a99b1b2683fcfa005b9b3680b5600581f; 394f811848827ad23d2b43e94e5d72a24cfbc39f builds before 9c33222bd387312874fbe36ca8002e5c945b9653 | CNA record |
References
- https://git.kernel.org/stable/c/3c60a8b4037dc35e365658fcbcb349a5d742ff49
- https://git.kernel.org/stable/c/a326b19cfb7775378b50acaa8d836ba44e29b4c2
- https://git.kernel.org/stable/c/bdd8a1297ef101bb5ac57e53b4fbe5e364afd8b1
- https://git.kernel.org/stable/c/f15bcf9a99b1b2683fcfa005b9b3680b5600581f
- https://git.kernel.org/stable/c/9c33222bd387312874fbe36ca8002e5c945b9653
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.