{"cve":{"cve_id":"CVE-2026-53166","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":null,"epss_percentile":null,"epss_as_of":null,"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfutex/requeue: Prevent NULL pointer dereference in remove_waiter() on self-deadlock\n\nWhen FUTEX_CMP_REQUEUE_PI requeues a non-top waiter that already owns the\ntarget PI futex, task_blocks_on_rt_mutex() returns -EDEADLK before setting\nwaiter->task.\n\nThe subsequent remove_waiter() in rt_mutex_start_proxy_lock() dereferences\nthe NULL waiter->task, causing a kernel crash.\n\nAdd a self-deadlock check for non-top waiters before calling\nrt_mutex_start_proxy_lock(), analogous to the top-waiter check in\nfutex_lock_pi_atomic().","published_at":"2026-06-25T08:38:46.089000Z","last_modified_at":null,"cvss_v3_score":null,"cvss_v3_vector":null,"cvss_v3_severity":null,"cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":null,"nvd_references":["https://git.kernel.org/stable/c/16f8e17184b31382076f84751db5ac51fc02733e","https://git.kernel.org/stable/c/1f2f3f3eacd6653ab215c5d2ea70811148d433fc","https://git.kernel.org/stable/c/74e144274af39935b0f410c0ee4d2b91c3730414"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-28T17:55:28.590503Z","updated_at":"2026-06-28T23:30:50.753831Z"},"effective_severity":null,"badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":null,"metrics":[]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"3fb7394a837740770f0d6b4b30567e60786a63f2","version_start_inclusive":true,"version_end":"16f8e17184b31382076f84751db5ac51fc02733e","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:3fb7394a837740770f0d6b4b30567e60786a63f2:16f8e17184b31382076f84751db5ac51fc02733e"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"88614876370aac8ad1050ad785a4c095ba17ac11","version_start_inclusive":true,"version_end":"1f2f3f3eacd6653ab215c5d2ea70811148d433fc","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:88614876370aac8ad1050ad785a4c095ba17ac11:1f2f3f3eacd6653ab215c5d2ea70811148d433fc"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"3bfdc63936dd4773109b7b8c280c0f3b5ae7d349","version_start_inclusive":true,"version_end":"74e144274af39935b0f410c0ee4d2b91c3730414","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:3bfdc63936dd4773109b7b8c280c0f3b5ae7d349:74e144274af39935b0f410c0ee4d2b91c3730414"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"d8cce4773c2b23d819baf5abedc62f7b430e8745","version_start_inclusive":true,"version_end":"d8cce4773c2b23d819baf5abedc62f7b430e8745","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:d8cce4773c2b23d819baf5abedc62f7b430e8745:d8cce4773c2b23d819baf5abedc62f7b430e8745"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"8a1fc8d698ac5e5916e3082a0f74450d71f9611f","version_start_inclusive":true,"version_end":"8a1fc8d698ac5e5916e3082a0f74450d71f9611f","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:8a1fc8d698ac5e5916e3082a0f74450d71f9611f:8a1fc8d698ac5e5916e3082a0f74450d71f9611f"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6d52dfcb2a5db86e346cf51f8fcf2071b8085166","version_start_inclusive":true,"version_end":"6d52dfcb2a5db86e346cf51f8fcf2071b8085166","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6d52dfcb2a5db86e346cf51f8fcf2071b8085166:6d52dfcb2a5db86e346cf51f8fcf2071b8085166"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.1.175","version_start_inclusive":true,"version_end":"6.2","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:6.1.175:6.2"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.6.140","version_start_inclusive":true,"version_end":"6.7","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:6.6.140:6.7"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.12.86","version_start_inclusive":true,"version_end":"6.13","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:6.12.86:6.13"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.18.27","version_start_inclusive":true,"version_end":"6.18.36","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:6.18.27:6.18.36"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"7.0.4","version_start_inclusive":true,"version_end":"7.0.13","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:7.0.4:7.0.13"}],"exploit_refs":[],"news":[],"references":[{"url":"https://git.kernel.org/stable/c/16f8e17184b31382076f84751db5ac51fc02733e","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/1f2f3f3eacd6653ab215c5d2ea70811148d433fc","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/74e144274af39935b0f410c0ee4d2b91c3730414","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2026-06-25T08:38:46.089000Z","label":"CVE published","source":null}]}