{"cve":{"cve_id":"CVE-2026-52934","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\nbatman-adv: tvlv: reject oversized TVLV packets\n\nbatadv_tvlv_container_ogm_append() builds a TVLV packet section from\nthe tvlv.container_list. The total size of this section is computed by\nbatadv_tvlv_container_list_size(), which sums the sizes of all registered\ncontainers.\n\nThe return type and accumulator in batadv_tvlv_container_list_size() were\nu16. If the accumulated size exceeds U16_MAX, the value wraps around,\ncausing the subsequent allocation in batadv_tvlv_container_ogm_append()\nto be undersized. The memcpy-style copy that follows would then write\nbeyond the end of the allocated buffer, corrupting kernel memory.\n\nFix this by widening the return type of batadv_tvlv_container_list_size()\nto size_t. In batadv_tvlv_container_ogm_append(), check the computed length\nagainst U16_MAX before proceeding, and bail out as if the allocation had\nfailed when the limit is exceeded.","published_at":"2026-06-24T07:14:25.321000Z","last_modified_at":null,"cvss_v3_score":8.8,"cvss_v3_vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/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/c02aa6c0c9d1bea9bb75dea362b75ad225137bae","https://git.kernel.org/stable/c/1595628a2f877d052eda18865ccf539392c47c04","https://git.kernel.org/stable/c/6448a49344e87487b61bd88cb850cd694a0f576d","https://git.kernel.org/stable/c/13493b00dd1e05a705981e052158652ea23eb482","https://git.kernel.org/stable/c/94db72e9dac202e017ee3db22c59d17e4f3bf171","https://git.kernel.org/stable/c/ede47988ac5687793745b17c1634a496a2299919","https://git.kernel.org/stable/c/94a3d72cd9b21116d7c6d5bdc57c11401fc28557","https://git.kernel.org/stable/c/f50487e3566358b2b982b7801945e858c78ad9ab"],"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":"A","value_label":"Adjacent"},{"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":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"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":"ef26157747d42254453f6b3ac2bd8bd3c53339c3","version_start_inclusive":true,"version_end":"c02aa6c0c9d1bea9bb75dea362b75ad225137bae","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:ef26157747d42254453f6b3ac2bd8bd3c53339c3:c02aa6c0c9d1bea9bb75dea362b75ad225137bae"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"ef26157747d42254453f6b3ac2bd8bd3c53339c3","version_start_inclusive":true,"version_end":"1595628a2f877d052eda18865ccf539392c47c04","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:ef26157747d42254453f6b3ac2bd8bd3c53339c3:1595628a2f877d052eda18865ccf539392c47c04"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"ef26157747d42254453f6b3ac2bd8bd3c53339c3","version_start_inclusive":true,"version_end":"6448a49344e87487b61bd88cb850cd694a0f576d","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:ef26157747d42254453f6b3ac2bd8bd3c53339c3:6448a49344e87487b61bd88cb850cd694a0f576d"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"ef26157747d42254453f6b3ac2bd8bd3c53339c3","version_start_inclusive":true,"version_end":"13493b00dd1e05a705981e052158652ea23eb482","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:ef26157747d42254453f6b3ac2bd8bd3c53339c3:13493b00dd1e05a705981e052158652ea23eb482"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"ef26157747d42254453f6b3ac2bd8bd3c53339c3","version_start_inclusive":true,"version_end":"94db72e9dac202e017ee3db22c59d17e4f3bf171","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:ef26157747d42254453f6b3ac2bd8bd3c53339c3:94db72e9dac202e017ee3db22c59d17e4f3bf171"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"ef26157747d42254453f6b3ac2bd8bd3c53339c3","version_start_inclusive":true,"version_end":"ede47988ac5687793745b17c1634a496a2299919","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:ef26157747d42254453f6b3ac2bd8bd3c53339c3:ede47988ac5687793745b17c1634a496a2299919"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"ef26157747d42254453f6b3ac2bd8bd3c53339c3","version_start_inclusive":true,"version_end":"94a3d72cd9b21116d7c6d5bdc57c11401fc28557","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:ef26157747d42254453f6b3ac2bd8bd3c53339c3:94a3d72cd9b21116d7c6d5bdc57c11401fc28557"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"ef26157747d42254453f6b3ac2bd8bd3c53339c3","version_start_inclusive":true,"version_end":"f50487e3566358b2b982b7801945e858c78ad9ab","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:ef26157747d42254453f6b3ac2bd8bd3c53339c3:f50487e3566358b2b982b7801945e858c78ad9ab"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"3.13","version_start_inclusive":true,"version_end":"3.13","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:3.13:3.13"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"0","version_start_inclusive":true,"version_end":"3.13","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:0:3.13"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"5.10.259","version_start_inclusive":true,"version_end":"5.10.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:5.10.259:5.10.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"5.15.210","version_start_inclusive":true,"version_end":"5.15.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:5.15.210:5.15.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.1.176","version_start_inclusive":true,"version_end":"6.1.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.1.176:6.1.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.6.143","version_start_inclusive":true,"version_end":"6.6.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.6.143:6.6.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.12.93","version_start_inclusive":true,"version_end":"6.12.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.12.93:6.12.*"},{"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/c02aa6c0c9d1bea9bb75dea362b75ad225137bae","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/1595628a2f877d052eda18865ccf539392c47c04","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/6448a49344e87487b61bd88cb850cd694a0f576d","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/13493b00dd1e05a705981e052158652ea23eb482","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/94db72e9dac202e017ee3db22c59d17e4f3bf171","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/ede47988ac5687793745b17c1634a496a2299919","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/94a3d72cd9b21116d7c6d5bdc57c11401fc28557","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/f50487e3566358b2b982b7801945e858c78ad9ab","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2026-06-24T07:14:25.321000Z","label":"CVE published","source":null}]}