{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-54321 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-54321 is a medium-severity vulnerability in Linux kernel, published on 30 Dec 2025. 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-2023-54321 and fix it if it is affected.\n\nWhat it is: CVE-2023-54321 is a medium-severity vulnerability in Linux kernel, published on 30 Dec 2025. 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-2023-54321 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-2023-54321/ (Markdown: https://insights.sbomify.com/CVE-2023-54321/index.md)","id":"CVE-2023-54321","markdown":"https://insights.sbomify.com/CVE-2023-54321/index.md","name":"CVE-2023-54321","record":{"aliases":["BELL-CVE-2023-54321","DEBIAN-CVE-2023-54321","GHSA-vfgj-f4g9-xh2h","UBUNTU-CVE-2023-54321"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A null pointer dereference in the Linux kernel device_add function can cause a system crash, requiring a kernel patch to fix.","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\ndriver core: fix potential null-ptr-deref in device_add()\n\nI got the following null-ptr-deref report while doing fault injection test:\n\nBUG: kernel NULL pointer dereference, address: 0000000000000058\nCPU: 2 PID: 278 Comm: 37-i2c-ds2482 Tainted: G    B   W        N 6.1.0-rc3+\nRIP: 0010:klist_put+0x2d/0xd0\nCall Trace:\n \u003cTASK\u003e\n klist_remove+0xf1/0x1c0\n device_release_driver_internal+0x196/0x210\n bus_remove_device+0x1bd/0x240\n device_add+0xd3d/0x1100\n w1_add_master_device+0x476/0x490 [wire]\n ds2482_probe+0x303/0x3e0 [ds2482]\n\nThis is how it happened:\n\nw1_alloc_dev()\n  // The dev-\u003edriver is set to w1_master_driver.\n  memcpy(\u0026dev-\u003edev, device, sizeof(struct device));\n  device_add()\n    bus_add_device()\n    dpm_sysfs_add() // It fails, calls bus_remove_device.\n\n    // error path\n    bus_remove_device()\n      // The dev-\u003edriver is not null, but driver is not bound.\n      __device_release_driver()\n        klist_remove(\u0026dev-\u003ep-\u003eknode_driver) \u003c-- It causes null-ptr-deref.\n\n    // normal path\n    bus_probe_device() // It's not called yet.\n      device_bind_driver()\n\nIf dev-\u003edriver is set, in the error path after calling bus_add_device()\nin device_add(), bus_remove_device() is called, then the device will be\ndetached from driver. But device_bind_driver() is not called yet, so it\ncauses null-ptr-deref while access the 'knode_driver'. To fix this, set\ndev-\u003edriver to null in the error path before calling bus_remove_device().","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":"driver core: fix potential null-ptr-deref in device_add()","id":"CVE-2023-54321","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"null_dereference","year":"2023"},"n_packages":0,"n_references":5,"next":{"headline":"arm64: set __exception_irq_entry with __irq_entry as a default","id":"CVE-2023-54322"},"packages":[],"prev":{"headline":"platform/x86/amd: pmc: Fix memory leak in amd_pmc_stb_debugfs_open_v2()","id":"CVE-2023-54320"},"products":["Linux"],"published":"2025-12-30","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":"2026-05-11","vendors":["Linux"]},"summary":"A null pointer dereference in the Linux kernel device_add function can cause a system crash, requiring a kernel patch to fix.","url":"https://insights.sbomify.com/CVE-2023-54321/"}