{"cve":{"cve_id":"CVE-2026-52974","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\nnet: tls: fix strparser anchor skb leak on offload RX setup failure\n\nWhen tls_set_device_offload_rx() fails at tls_dev_add(), the error path\ncalls tls_sw_free_resources_rx() to clean up the SW context that was\ninitialized by tls_set_sw_offload(). This function calls\ntls_sw_release_resources_rx() (which stops the strparser via\ntls_strp_stop()) and tls_sw_free_ctx_rx() (which kfrees the context),\nbut never frees the anchor skb that was allocated by alloc_skb(0) in\ntls_strp_init().\n\nNote that tls_sw_free_resources_rx() is exclusively used for this\n\"failed to start offload\" code path, there's no other caller.\n\nThe leak did not exist before commit 84c61fe1a75b (\"tls: rx: do not use\nthe standard strparser\"), because the standard strparser doesn't try\nto pre-allocate an skb.\n\nThe normal close path in tls_sk_proto_close() handles cleanup by calling\ntls_sw_strparser_done() (which calls tls_strp_done()) after dropping\nthe socket lock, because tls_strp_done() does cancel_work_sync() and\nthe strparser work handler takes the socket lock.","published_at":"2026-06-24T16:28:51.826000Z","last_modified_at":null,"cvss_v3_score":7.5,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvss_v3_severity":"HIGH","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/0c9f399b37ce22a5ed94cc51f03ed07ac7f38e32","https://git.kernel.org/stable/c/688f12aa44511dd57e448eb670075c6302ad1dc1","https://git.kernel.org/stable/c/3c405dfa9619e506e75b8e41f8b29a5b99731877","https://git.kernel.org/stable/c/9c54e76f8d6eb11735918777ef0e0509e089557d","https://git.kernel.org/stable/c/bd07fe6c38b9e44ff3fc02692a53f095c5cc9afc","https://git.kernel.org/stable/c/58689498ca3384851145a754dbb1d8ed1cf9fb54"],"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":"HIGH","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"N","value_label":"None"},{"metric":"I","name":"Integrity","value":"N","value_label":"None"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"84c61fe1a75b4255df1e1e7c054c9e6d048da417","version_start_inclusive":true,"version_end":"0c9f399b37ce22a5ed94cc51f03ed07ac7f38e32","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:84c61fe1a75b4255df1e1e7c054c9e6d048da417:0c9f399b37ce22a5ed94cc51f03ed07ac7f38e32"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"84c61fe1a75b4255df1e1e7c054c9e6d048da417","version_start_inclusive":true,"version_end":"688f12aa44511dd57e448eb670075c6302ad1dc1","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:84c61fe1a75b4255df1e1e7c054c9e6d048da417:688f12aa44511dd57e448eb670075c6302ad1dc1"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"84c61fe1a75b4255df1e1e7c054c9e6d048da417","version_start_inclusive":true,"version_end":"3c405dfa9619e506e75b8e41f8b29a5b99731877","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:84c61fe1a75b4255df1e1e7c054c9e6d048da417:3c405dfa9619e506e75b8e41f8b29a5b99731877"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"84c61fe1a75b4255df1e1e7c054c9e6d048da417","version_start_inclusive":true,"version_end":"9c54e76f8d6eb11735918777ef0e0509e089557d","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:84c61fe1a75b4255df1e1e7c054c9e6d048da417:9c54e76f8d6eb11735918777ef0e0509e089557d"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"84c61fe1a75b4255df1e1e7c054c9e6d048da417","version_start_inclusive":true,"version_end":"bd07fe6c38b9e44ff3fc02692a53f095c5cc9afc","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:84c61fe1a75b4255df1e1e7c054c9e6d048da417:bd07fe6c38b9e44ff3fc02692a53f095c5cc9afc"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"84c61fe1a75b4255df1e1e7c054c9e6d048da417","version_start_inclusive":true,"version_end":"58689498ca3384851145a754dbb1d8ed1cf9fb54","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:84c61fe1a75b4255df1e1e7c054c9e6d048da417:58689498ca3384851145a754dbb1d8ed1cf9fb54"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.0","version_start_inclusive":true,"version_end":"6.0","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.0:6.0"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"0","version_start_inclusive":true,"version_end":"6.0","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:0:6.0"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.1.175","version_start_inclusive":true,"version_end":"6.1.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.1.175:6.1.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.6.141","version_start_inclusive":true,"version_end":"6.6.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.6.141:6.6.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.12.91","version_start_inclusive":true,"version_end":"6.12.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.12.91:6.12.*"},{"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/0c9f399b37ce22a5ed94cc51f03ed07ac7f38e32","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/688f12aa44511dd57e448eb670075c6302ad1dc1","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/3c405dfa9619e506e75b8e41f8b29a5b99731877","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/9c54e76f8d6eb11735918777ef0e0509e089557d","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/bd07fe6c38b9e44ff3fc02692a53f095c5cc9afc","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/58689498ca3384851145a754dbb1d8ed1cf9fb54","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2026-06-24T16:28:51.826000Z","label":"CVE published","source":null}]}