{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-23017 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-23017 is a medium-severity vulnerability in Linux kernel, published on 31 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-23017 and fix it if it is affected.\n\nWhat it is: CVE-2026-23017 is a medium-severity vulnerability in Linux kernel, published on 31 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-23017 in the wild and no public exploit code.\n\nAffected product: Linux kernel. 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-2026-23017/ (Markdown: https://insights.sbomify.com/CVE-2026-23017/index.md)","id":"CVE-2026-23017","markdown":"https://insights.sbomify.com/CVE-2026-23017/index.md","name":"CVE-2026-23017","record":{"aliases":["BELL-CVE-2026-23017","DEBIAN-CVE-2026-23017","GHSA-r8hg-wq4j-qxmg","ROOT-OS-DEBIAN-13-CVE-2026-23017","ROOT-OS-UBUNTU-2404-CVE-2026-23017","UBUNTU-CVE-2026-23017"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel driver","requires_auth":"low_privilege","summary":"A null pointer dereference in the idpf driver during initialization failure causes a kernel crash, leading to denial of service.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":5.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-476","name":"NULL Pointer Dereference"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nidpf: fix error handling in the init_task on load\n\nIf the init_task fails during a driver load, we end up without vports and\nnetdevs, effectively failing the entire process. In that state a\nsubsequent reset will result in a crash as the service task attempts to\naccess uninitialized resources. Following trace is from an error in the\ninit_task where the CREATE_VPORT (op 501) is rejected by the FW:\n\n[40922.763136] idpf 0000:83:00.0: Device HW Reset initiated\n[40924.449797] idpf 0000:83:00.0: Transaction failed (op 501)\n[40958.148190] idpf 0000:83:00.0: HW reset detected\n[40958.161202] BUG: kernel NULL pointer dereference, address: 00000000000000a8\n...\n[40958.168094] Workqueue: idpf-0000:83:00.0-vc_event idpf_vc_event_task [idpf]\n[40958.168865] RIP: 0010:idpf_vc_event_task+0x9b/0x350 [idpf]\n...\n[40958.177932] Call Trace:\n[40958.178491]  \u003cTASK\u003e\n[40958.179040]  process_one_work+0x226/0x6d0\n[40958.179609]  worker_thread+0x19e/0x340\n[40958.180158]  ? __pfx_worker_thread+0x10/0x10\n[40958.180702]  kthread+0x10f/0x250\n[40958.181238]  ? __pfx_kthread+0x10/0x10\n[40958.181774]  ret_from_fork+0x251/0x2b0\n[40958.182307]  ? __pfx_kthread+0x10/0x10\n[40958.182834]  ret_from_fork_asm+0x1a/0x30\n[40958.183370]  \u003c/TASK\u003e\n\nFix the error handling in the init_task to make sure the service and\nmailbox tasks are disabled if the error happens during load. These are\nstarted in idpf_vc_core_init(), which spawns the init_task and has no way\nof knowing if it failed. If the error happens on reset, following\nsuccessful driver load, the tasks can still run, as that will allow the\nnetdevs to attempt recovery through another reset. Stop the PTP callbacks\neither way as those will be restarted by the call to idpf_vc_core_init()\nduring a successful reset.","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":"idpf: fix error handling in the init_task on load","id":"CVE-2026-23017","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"null_dereference","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"btrfs: release path before initializing extent tree in btrfs_read_locked_inode()","id":"CVE-2026-23018"},"packages":[],"prev":{"headline":"inet: frags: drop fraglist conntrack references","id":"CVE-2026-23016"},"products":["Linux"],"published":"2026-01-31","related":[{"cvss_score":8.8,"headline":"Linux Kernel Out-of-Bounds Write","id":"CVE-2026-53266","kev_date_added":"2026-09-18","published":"2026-06-25"},{"cvss_score":8.8,"headline":"Linux Kernel Improper Input Validation","id":"CVE-2013-6282","kev_date_added":"2022-09-15","published":"2013-11-19"},{"cvss_score":8.4,"headline":"Linux Kernel Heap-Based Buffer Overflow","id":"CVE-2022-0185","kev_date_added":"2024-08-21","published":"2022-02-11"},{"cvss_score":8.4,"headline":"Linux Kernel Privilege Escalation","id":"CVE-2013-2094","kev_date_added":"2022-09-15","published":"2013-05-14"},{"cvss_score":7.8,"headline":"Linux Kernel Unspecified","id":"CVE-2026-53362","kev_date_added":"2026-08-27","published":"2026-07-04"},{"cvss_score":7.8,"headline":"Linux Kernel Missing Initialization of a Variable","id":"CVE-2026-46300","kev_date_added":"2026-10-28","published":"2026-05-23"},{"cvss_score":7.8,"headline":"Linux Kernel Race Condition","id":"CVE-2025-39964","kev_date_added":"2026-09-18","published":"2025-10-13"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-21","vendors":["Linux"]},"summary":"A null pointer dereference in the idpf driver during initialization failure causes a kernel crash, leading to denial of service.","url":"https://insights.sbomify.com/CVE-2026-23017/"}