{"id":"CVE-2026-80691","title":"scsi: target: iblock: Fix wrong PR ops NULL check for PREEMPT/RELEASE","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: target: iblock: Fix wrong PR ops NULL check for PREEMPT/RELEASE\n\nIn the iblock_execute_pr_out() function, PRO_PREEMPT,\nPRO_PREEMPT_AND_ABORT, and PRO_RELEASE all …","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= 394f811848827ad23d2b43e94e5d72a24cfbc39f < 3c60a8b4037dc35e365658fcbcb349a5d742ff49","Linux >= 394f811848827ad23d2b43e94e5d72a24cfbc39f < a326b19cfb7775378b50acaa8d836ba44e29b4c2","Linux >= 394f811848827ad23d2b43e94e5d72a24cfbc39f < bdd8a1297ef101bb5ac57e53b4fbe5e364afd8b1","Linux >= 394f811848827ad23d2b43e94e5d72a24cfbc39f < f15bcf9a99b1b2683fcfa005b9b3680b5600581f","Linux >= 394f811848827ad23d2b43e94e5d72a24cfbc39f < 9c33222bd387312874fbe36ca8002e5c945b9653","Linux 6.5"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-10-16T19:20:02.512746Z"},"published":"2026-08-28","updated":"2026-10-16","sourceUpdated":"2026-10-16T19:26:33.427Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-80691","references":[{"url":"https://git.kernel.org/stable/c/3c60a8b4037dc35e365658fcbcb349a5d742ff49"},{"url":"https://git.kernel.org/stable/c/a326b19cfb7775378b50acaa8d836ba44e29b4c2"},{"url":"https://git.kernel.org/stable/c/bdd8a1297ef101bb5ac57e53b4fbe5e364afd8b1"},{"url":"https://git.kernel.org/stable/c/f15bcf9a99b1b2683fcfa005b9b3680b5600581f"},{"url":"https://git.kernel.org/stable/c/9c33222bd387312874fbe36ca8002e5c945b9653"}],"tags":["cve.org"],"epss":0.00441,"epssPercentile":0.36811,"ingestedAt":"2026-10-16T19:46:24.306Z","slug":"CVE-2026-80691","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nscsi: target: iblock: Fix wrong PR ops NULL check for PREEMPT/RELEASE\n\nIn the iblock_execute_pr_out() function, PRO_PREEMPT,\nPRO_PREEMPT_AND_ABORT, and PRO_RELEASE all perform callback capability\nchecks through ops->pr_clear. The error check allows unimplemented hooks\nto pass through the gate, resulting dereferencing a NULL function\npointer.\n\nCheck whether the hooks that need to be called are supported.\n\n## Affected\n\n- `Linux >= 394f811848827ad23d2b43e94e5d72a24cfbc39f < 3c60a8b4037dc35e365658fcbcb349a5d742ff49`\n- `Linux >= 394f811848827ad23d2b43e94e5d72a24cfbc39f < a326b19cfb7775378b50acaa8d836ba44e29b4c2`\n- `Linux >= 394f811848827ad23d2b43e94e5d72a24cfbc39f < bdd8a1297ef101bb5ac57e53b4fbe5e364afd8b1`\n- `Linux >= 394f811848827ad23d2b43e94e5d72a24cfbc39f < f15bcf9a99b1b2683fcfa005b9b3680b5600581f`\n- `Linux >= 394f811848827ad23d2b43e94e5d72a24cfbc39f < 9c33222bd387312874fbe36ca8002e5c945b9653`\n- `Linux 6.5`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}