{"cve":{"cve_id":"CVE-2026-52937","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\ntap: fix stack info leak in tap_ioctl() SIOCGIFHWADDR\n\nIn the SIOCGIFHWADDR path, tap_ioctl() copies 16 bytes of an\nuninitialised on-stack struct sockaddr_storage to userspace via\nifr_hwaddr, but netif_get_mac_address() only writes sa_family and\ndev->addr_len (6 for Ethernet) bytes, leaving sa_data[6..13] uninitialised.\n\nThose 8 trailing bytes leak kernel stack contents; SIOCGIFHWADDR on a\nmacvtap chardev returns kernel .text and direct-map pointers, defeating\nKASLR.\n\nInitialise ss at declaration.","published_at":"2026-06-24T07:14:27.305000Z","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/719007c3492f0f1f9e9cdbed8ac45ba45bb13eeb","https://git.kernel.org/stable/c/05305e832be7b9d65b2b72caacf7d850b3942b2a","https://git.kernel.org/stable/c/bddc09212c24934643bd44fc794748d2bbb3b6cd"],"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":"2026-06-28T17:55:22.518073Z","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":"3b23a32a63219f51a5298bc55a65ecee866e79d0","version_start_inclusive":true,"version_end":"719007c3492f0f1f9e9cdbed8ac45ba45bb13eeb","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:3b23a32a63219f51a5298bc55a65ecee866e79d0:719007c3492f0f1f9e9cdbed8ac45ba45bb13eeb"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"3b23a32a63219f51a5298bc55a65ecee866e79d0","version_start_inclusive":true,"version_end":"05305e832be7b9d65b2b72caacf7d850b3942b2a","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:3b23a32a63219f51a5298bc55a65ecee866e79d0:05305e832be7b9d65b2b72caacf7d850b3942b2a"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"3b23a32a63219f51a5298bc55a65ecee866e79d0","version_start_inclusive":true,"version_end":"bddc09212c24934643bd44fc794748d2bbb3b6cd","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:3b23a32a63219f51a5298bc55a65ecee866e79d0:bddc09212c24934643bd44fc794748d2bbb3b6cd"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"176188cff67ec1aa55103647b61d02315cc38e98","version_start_inclusive":true,"version_end":"176188cff67ec1aa55103647b61d02315cc38e98","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:176188cff67ec1aa55103647b61d02315cc38e98:176188cff67ec1aa55103647b61d02315cc38e98"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"1fc205d9e400f069ebf30d3faa6ec2bab2cbd7b4","version_start_inclusive":true,"version_end":"1fc205d9e400f069ebf30d3faa6ec2bab2cbd7b4","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:1fc205d9e400f069ebf30d3faa6ec2bab2cbd7b4:1fc205d9e400f069ebf30d3faa6ec2bab2cbd7b4"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"4d0ae760c02c98fc78b78d3a0509896bc648ad1c","version_start_inclusive":true,"version_end":"4d0ae760c02c98fc78b78d3a0509896bc648ad1c","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:4d0ae760c02c98fc78b78d3a0509896bc648ad1c:4d0ae760c02c98fc78b78d3a0509896bc648ad1c"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"5.4.103","version_start_inclusive":true,"version_end":"5.5","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:5.4.103:5.5"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"5.10.21","version_start_inclusive":true,"version_end":"5.11","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:5.10.21:5.11"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"5.11.4","version_start_inclusive":true,"version_end":"5.12","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:5.11.4:5.12"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"5.12","version_start_inclusive":true,"version_end":"5.12","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:5.12:5.12"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"0","version_start_inclusive":true,"version_end":"5.12","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:0:5.12"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.18.34","version_start_inclusive":true,"version_end":"6.18.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.18.34:6.18.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"7.0.11","version_start_inclusive":true,"version_end":"7.0.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:7.0.11:7.0.*"},{"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/719007c3492f0f1f9e9cdbed8ac45ba45bb13eeb","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/05305e832be7b9d65b2b72caacf7d850b3942b2a","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/bddc09212c24934643bd44fc794748d2bbb3b6cd","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2026-06-24T07:14:27.305000Z","label":"CVE published","source":null}]}