{"cve":{"cve_id":"CVE-2026-53042","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\nfwctl: Fix class init ordering to avoid NULL pointer dereference on device removal\n\nCXL is linked before fwctl in drivers/Makefile. Both use `module_init, so\n`cxl_pci_driver_init()` runs first. When `cxl_pci_probe()` calls\n`fwctl_register()` and then `device_add()`, fwctl_class is not yet\nregistered because fwctl_init() hasn't run, causing `class_to_subsys()` to\nreturn NULL and skip knode_class initialization.\n\nOn device removal, `class_to_subsys()` returns non-NULL, and\n`device_del()` calls `klist_del()` on the uninitialized knode, triggering\na NULL pointer dereference.","published_at":"2026-06-24T16:29:48.273000Z","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/a28f56988c8e5bb9375806a5cfb0bf54d662ae3f","https://git.kernel.org/stable/c/1075f2f590fdac147f8b8010c35b606564b5c7d7","https://git.kernel.org/stable/c/a55f80233f384dc89ef3425b2e1dd0e6d44bcf29"],"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":"2026-06-28T23:30:49.890169Z"},"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":"858ce2f56b5253063f61f6b1c58a6dbf5d71da0b","version_start_inclusive":true,"version_end":"a28f56988c8e5bb9375806a5cfb0bf54d662ae3f","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:858ce2f56b5253063f61f6b1c58a6dbf5d71da0b:a28f56988c8e5bb9375806a5cfb0bf54d662ae3f"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"858ce2f56b5253063f61f6b1c58a6dbf5d71da0b","version_start_inclusive":true,"version_end":"1075f2f590fdac147f8b8010c35b606564b5c7d7","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:858ce2f56b5253063f61f6b1c58a6dbf5d71da0b:1075f2f590fdac147f8b8010c35b606564b5c7d7"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"858ce2f56b5253063f61f6b1c58a6dbf5d71da0b","version_start_inclusive":true,"version_end":"a55f80233f384dc89ef3425b2e1dd0e6d44bcf29","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:858ce2f56b5253063f61f6b1c58a6dbf5d71da0b:a55f80233f384dc89ef3425b2e1dd0e6d44bcf29"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.15","version_start_inclusive":true,"version_end":"6.15","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.15:6.15"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"0","version_start_inclusive":true,"version_end":"6.15","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:0:6.15"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.18.33","version_start_inclusive":true,"version_end":"6.18.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.18.33:6.18.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"7.0.10","version_start_inclusive":true,"version_end":"7.0.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:7.0.10:7.0.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"7.1","version_start_inclusive":true,"version_end":"*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:7.1:*"}],"exploit_refs":[],"news":[],"references":[{"url":"https://git.kernel.org/stable/c/a28f56988c8e5bb9375806a5cfb0bf54d662ae3f","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/1075f2f590fdac147f8b8010c35b606564b5c7d7","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/a55f80233f384dc89ef3425b2e1dd0e6d44bcf29","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2026-06-24T16:29:48.273000Z","label":"CVE published","source":null}]}