{"cve":{"cve_id":"CVE-2026-52919","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: fix tp_meter counter underflow during shutdown\n\nbatadv_tp_sender_shutdown() unconditionally decrements the \"sending\"\natomic counter. If multiple paths (e.g. timeout, user cancel, and\nnormal finish) call this function, the counter can underflow to -1.\n\nSince the sender logic treats any non-zero value as \"still sending\",\na negative value causes the sender kthread to loop indefinitely.\nThis leads to a use-after-free when the interface is removed while\nthe zombie thread is still active.\n\nFix this by using atomic_xchg() to ensure the counter only transitions\nfrom 1 to 0 once.\n\n[sven: added missing change in batadv_tp_send]","published_at":"2026-06-24T07:14:15.201000Z","last_modified_at":null,"cvss_v3_score":7.8,"cvss_v3_vector":"CVSS:3.1/AV:L/AC:L/PR:L/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/e75e2ab463b5b34df6b98f94d740aff327ce9f6b","https://git.kernel.org/stable/c/abae88fa254f2981d39ac003a7b302528a22af64","https://git.kernel.org/stable/c/c66d20a3ff095e3f000551d208ec2606616db15c","https://git.kernel.org/stable/c/c1bac194733aabd731aafa6a01350c229e187dba","https://git.kernel.org/stable/c/01cefc5923889e29dbb5f281c3d457714ceb9c00","https://git.kernel.org/stable/c/90ae3eae06b7b8ab9f6250b9497c860915b4c17b","https://git.kernel.org/stable/c/aeae11c5dad9cd0d50723890bdd866f8e6db2e7d","https://git.kernel.org/stable/c/94f3b133168d1c49895e7cc6afbcf1cc0b354602"],"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":"2026-06-28T23:30:49.088205Z"},"effective_severity":"HIGH","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"L","value_label":"Local"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"L","value_label":"Low"},{"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":"33a3bb4a3345bb511f9c69c913da95d4693e2a4e","version_start_inclusive":true,"version_end":"e75e2ab463b5b34df6b98f94d740aff327ce9f6b","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:33a3bb4a3345bb511f9c69c913da95d4693e2a4e:e75e2ab463b5b34df6b98f94d740aff327ce9f6b"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"33a3bb4a3345bb511f9c69c913da95d4693e2a4e","version_start_inclusive":true,"version_end":"abae88fa254f2981d39ac003a7b302528a22af64","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:33a3bb4a3345bb511f9c69c913da95d4693e2a4e:abae88fa254f2981d39ac003a7b302528a22af64"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"33a3bb4a3345bb511f9c69c913da95d4693e2a4e","version_start_inclusive":true,"version_end":"c66d20a3ff095e3f000551d208ec2606616db15c","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:33a3bb4a3345bb511f9c69c913da95d4693e2a4e:c66d20a3ff095e3f000551d208ec2606616db15c"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"33a3bb4a3345bb511f9c69c913da95d4693e2a4e","version_start_inclusive":true,"version_end":"c1bac194733aabd731aafa6a01350c229e187dba","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:33a3bb4a3345bb511f9c69c913da95d4693e2a4e:c1bac194733aabd731aafa6a01350c229e187dba"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"33a3bb4a3345bb511f9c69c913da95d4693e2a4e","version_start_inclusive":true,"version_end":"01cefc5923889e29dbb5f281c3d457714ceb9c00","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:33a3bb4a3345bb511f9c69c913da95d4693e2a4e:01cefc5923889e29dbb5f281c3d457714ceb9c00"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"33a3bb4a3345bb511f9c69c913da95d4693e2a4e","version_start_inclusive":true,"version_end":"90ae3eae06b7b8ab9f6250b9497c860915b4c17b","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:33a3bb4a3345bb511f9c69c913da95d4693e2a4e:90ae3eae06b7b8ab9f6250b9497c860915b4c17b"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"33a3bb4a3345bb511f9c69c913da95d4693e2a4e","version_start_inclusive":true,"version_end":"aeae11c5dad9cd0d50723890bdd866f8e6db2e7d","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:33a3bb4a3345bb511f9c69c913da95d4693e2a4e:aeae11c5dad9cd0d50723890bdd866f8e6db2e7d"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"33a3bb4a3345bb511f9c69c913da95d4693e2a4e","version_start_inclusive":true,"version_end":"94f3b133168d1c49895e7cc6afbcf1cc0b354602","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:33a3bb4a3345bb511f9c69c913da95d4693e2a4e:94f3b133168d1c49895e7cc6afbcf1cc0b354602"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"4.8","version_start_inclusive":true,"version_end":"4.8","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:4.8:4.8"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"0","version_start_inclusive":true,"version_end":"4.8","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:0:4.8"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"5.10.258","version_start_inclusive":true,"version_end":"5.10.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:5.10.258:5.10.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"5.15.209","version_start_inclusive":true,"version_end":"5.15.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:5.15.209:5.15.*"},{"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":"6.6.142","version_start_inclusive":true,"version_end":"6.6.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.6.142:6.6.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.12.92","version_start_inclusive":true,"version_end":"6.12.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.12.92:6.12.*"},{"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/e75e2ab463b5b34df6b98f94d740aff327ce9f6b","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/abae88fa254f2981d39ac003a7b302528a22af64","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/c66d20a3ff095e3f000551d208ec2606616db15c","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/c1bac194733aabd731aafa6a01350c229e187dba","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/01cefc5923889e29dbb5f281c3d457714ceb9c00","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/90ae3eae06b7b8ab9f6250b9497c860915b4c17b","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/aeae11c5dad9cd0d50723890bdd866f8e6db2e7d","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/94f3b133168d1c49895e7cc6afbcf1cc0b354602","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2026-06-24T07:14:15.201000Z","label":"CVE published","source":null}]}