{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2023-54323 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-54323 is a vulnerability in Linux, 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-2023-54323 and fix it if it is affected.\n\nWhat it is: CVE-2023-54323 is a vulnerability in Linux, 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-2023-54323 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-2023-54323/ (Markdown: https://insights.sbomify.com/CVE-2023-54323/index.md)","id":"CVE-2023-54323","markdown":"https://insights.sbomify.com/CVE-2023-54323/index.md","name":"CVE-2023-54323","record":{"aliases":["BELL-CVE-2023-54323","DEBIAN-CVE-2023-54323","GHSA-9rp2-rcxm-vpww","ROOT-OS-UBUNTU-2204-CVE-2023-54323","UBUNTU-CVE-2023-54323"],"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":"high_privilege","summary":"A race condition in the Linux kernel CXL/PMEM driver allows local attackers to cause a system crash via module loading/unloading.","user_interaction":"not_required","vuln_class":"race_condition"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncxl/pmem: Fix nvdimm registration races\n\nA loop of the form:\n\n    while true; do modprobe cxl_pci; modprobe -r cxl_pci; done\n\n...fails with the following crash signature:\n\n    BUG: kernel NULL pointer dereference, address: 0000000000000040\n    [..]\n    RIP: 0010:cxl_internal_send_cmd+0x5/0xb0 [cxl_core]\n    [..]\n    Call Trace:\n     \u003cTASK\u003e\n     cxl_pmem_ctl+0x121/0x240 [cxl_pmem]\n     nvdimm_get_config_data+0xd6/0x1a0 [libnvdimm]\n     nd_label_data_init+0x135/0x7e0 [libnvdimm]\n     nvdimm_probe+0xd6/0x1c0 [libnvdimm]\n     nvdimm_bus_probe+0x7a/0x1e0 [libnvdimm]\n     really_probe+0xde/0x380\n     __driver_probe_device+0x78/0x170\n     driver_probe_device+0x1f/0x90\n     __device_attach_driver+0x85/0x110\n     bus_for_each_drv+0x7d/0xc0\n     __device_attach+0xb4/0x1e0\n     bus_probe_device+0x9f/0xc0\n     device_add+0x445/0x9c0\n     nd_async_device_register+0xe/0x40 [libnvdimm]\n     async_run_entry_fn+0x30/0x130\n\n...namely that the bottom half of async nvdimm device registration runs\nafter the CXL has already torn down the context that cxl_pmem_ctl()\nneeds. Unlike the ACPI NFIT case that benefits from launching multiple\nnvdimm device registrations in parallel from those listed in the table,\nCXL is already marked PROBE_PREFER_ASYNCHRONOUS. So provide for a\nsynchronous registration path to preclude this scenario.","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":"cxl/pmem: Fix nvdimm registration races","id":"CVE-2023-54323","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"race_condition","year":"2023"},"n_packages":0,"n_references":3,"next":{"headline":"dm: fix a race condition in retrieve_deps","id":"CVE-2023-54324"},"packages":[],"prev":{"headline":"arm64: set __exception_irq_entry with __irq_entry as a default","id":"CVE-2023-54322"},"products":["Linux"],"published":"2025-12-30","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-05-11","vendors":["Linux"]},"summary":"A race condition in the Linux kernel CXL/PMEM driver allows local attackers to cause a system crash via module loading/unloading.","url":"https://insights.sbomify.com/CVE-2023-54323/"}