{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-53166 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-53166 is a medium-severity vulnerability in Linux kernel, published on 15 Sep 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-2023-53166 and fix it if it is affected.\n\nWhat it is: CVE-2023-53166 is a medium-severity vulnerability in Linux kernel, published on 15 Sep 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-2023-53166 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-2023-53166/ (Markdown: https://insights.sbomify.com/CVE-2023-53166/index.md)","id":"CVE-2023-53166","markdown":"https://insights.sbomify.com/CVE-2023-53166/index.md","name":"CVE-2023-53166","record":{"aliases":["BELL-CVE-2023-53166","DEBIAN-CVE-2023-53166","GHSA-x38q-rf72-5pjg","UBUNTU-CVE-2023-53166"],"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 race condition in the bq25890 charger driver causes a NULL pointer dereference during boot, leading to a kernel crash and 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":4.7,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-362","name":"Concurrent Execution using Shared Resource with Improper Synchronization"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: bq25890: Fix external_power_changed race\n\nbq25890_charger_external_power_changed() dereferences bq-\u003echarger,\nwhich gets sets in bq25890_power_supply_init() like this:\n\n  bq-\u003echarger = devm_power_supply_register(bq-\u003edev, \u0026bq-\u003edesc, \u0026psy_cfg);\n\nAs soon as devm_power_supply_register() has called device_add()\nthe external_power_changed callback can get called. So there is a window\nwhere bq25890_charger_external_power_changed() may get called while\nbq-\u003echarger has not been set yet leading to a NULL pointer dereference.\n\nThis race hits during boot sometimes on a Lenovo Yoga Book 1 yb1-x90f\nwhen the cht_wcove_pwrsrc (extcon) power_supply is done with detecting\nthe connected charger-type which happens to exactly hit the small window:\n\n  BUG: kernel NULL pointer dereference, address: 0000000000000018\n  \u003csnip\u003e\n  RIP: 0010:__power_supply_is_supplied_by+0xb/0xb0\n  \u003csnip\u003e\n  Call Trace:\n   \u003cTASK\u003e\n   __power_supply_get_supplier_property+0x19/0x50\n   class_for_each_device+0xb1/0xe0\n   power_supply_get_property_from_supplier+0x2e/0x50\n   bq25890_charger_external_power_changed+0x38/0x1b0 [bq25890_charger]\n   __power_supply_changed_work+0x30/0x40\n   class_for_each_device+0xb1/0xe0\n   power_supply_changed_work+0x5f/0xe0\n  \u003csnip\u003e\n\nFixing this is easy. The external_power_changed callback gets passed\nthe power_supply which will eventually get stored in bq-\u003echarger,\nso bq25890_charger_external_power_changed() can simply directly use\nthe passed in psy argument which is always valid.","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":"power: supply: bq25890: Fix external_power_changed race","id":"CVE-2023-53166","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":3,"next":{"headline":"tracing: Fix null pointer dereference in tracing_err_log_open()","id":"CVE-2023-53167"},"packages":[],"prev":{"headline":"udf: Fix uninitialized array access for some pathnames","id":"CVE-2023-53165"},"products":["Linux"],"published":"2025-09-15","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 race condition in the bq25890 charger driver causes a NULL pointer dereference during boot, leading to a kernel crash and denial of service.","url":"https://insights.sbomify.com/CVE-2023-53166/"}