{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-80691 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-80691 is a high-severity vulnerability in Linux, published on 28 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-80691 and fix it if it is affected.\n\nWhat it is: CVE-2026-80691 is a high-severity vulnerability in Linux, published on 28 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-80691 in the wild and no public exploit code.\n\nAffected product: Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-80691/ (Markdown: https://insights.sbomify.com/CVE-2026-80691/index.md)","id":"CVE-2026-80691","markdown":"https://insights.sbomify.com/CVE-2026-80691/index.md","name":"CVE-2026-80691","record":{"aliases":["AZL-98072","BELL-CVE-2026-80691","DEBIAN-CVE-2026-80691","GHSA-mp2w-vvvm-2m46","UBUNTU-CVE-2026-80691"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel SCSI target","requires_auth":"none","summary":"A null pointer dereference in the Linux kernel SCSI target iblock driver allows attackers to cause a denial of service via crafted Persistent Reservation operations.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[],"description":"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 perform callback capability\nchecks through ops-\u003epr_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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"scsi: target: iblock: Fix wrong PR ops NULL check for PREEMPT/RELEASE","id":"CVE-2026-80691","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"Bluetooth: hci_sync: hold conn in hci_connect_acl/le_sync() callbacks","id":"CVE-2026-80692"},"packages":[],"prev":{"headline":"scsi: ufs: core: Initialize hba-\u003erpmbs list in ufshcd","id":"CVE-2026-80690"},"products":["Linux"],"published":"2026-08-28","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-16","vendors":["Linux"]},"summary":"A null pointer dereference in the Linux kernel SCSI target iblock driver allows attackers to cause a denial of service via crafted Persistent Reservation operations.","url":"https://insights.sbomify.com/CVE-2026-80691/"}