{"cve":{"cve_id":"CVE-2026-53085","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\nbpf: fix mm lifecycle in open-coded task_vma iterator\n\nThe open-coded task_vma iterator reads task->mm locklessly and acquires\nmmap_read_trylock() but never calls mmget(). If the task exits\nconcurrently, the mm_struct can be freed as it is not\nSLAB_TYPESAFE_BY_RCU, resulting in a use-after-free.\n\nSafely read task->mm with a trylock on alloc_lock and acquire an mm\nreference. Drop the reference via bpf_iter_mmput_async() in _destroy()\nand error paths. bpf_iter_mmput_async() is a local wrapper around\nmmput_async() with a fallback to mmput() on !CONFIG_MMU.\n\nReject irqs-disabled contexts (including NMI) up front. Operations used\nby _next() and _destroy() (mmap_read_unlock, bpf_iter_mmput_async)\ntake spinlocks with IRQs disabled (pool->lock, pi_lock). Running from\nNMI or from a tracepoint that fires with those locks held could\ndeadlock.\n\nA trylock on alloc_lock is used instead of the blocking task_lock()\n(get_task_mm) to avoid a deadlock when a softirq BPF program iterates\na task that already holds its alloc_lock on the same CPU.","published_at":"2026-06-24T16:30:25.232000Z","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/239cec25a22662dbd80f57d94b38178c8be95269","https://git.kernel.org/stable/c/d0862de7c866c5bd7c32531f66738c21197af888","https://git.kernel.org/stable/c/43683bb280330f3d36f0f2a3932a4867b9603e9c","https://git.kernel.org/stable/c/d8e27d2d22b6e2df3a0125b8c08e9aace38c954c"],"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":"2026-06-28T23:30:50.753831Z"},"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":"7.1","version_start_inclusive":true,"version_end":"*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:7.1:*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"4ac4546821584736798aaa9e97da9f6eaf689ea3","version_start_inclusive":true,"version_end":"239cec25a22662dbd80f57d94b38178c8be95269","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:4ac4546821584736798aaa9e97da9f6eaf689ea3:239cec25a22662dbd80f57d94b38178c8be95269"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"4ac4546821584736798aaa9e97da9f6eaf689ea3","version_start_inclusive":true,"version_end":"d0862de7c866c5bd7c32531f66738c21197af888","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:4ac4546821584736798aaa9e97da9f6eaf689ea3:d0862de7c866c5bd7c32531f66738c21197af888"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"4ac4546821584736798aaa9e97da9f6eaf689ea3","version_start_inclusive":true,"version_end":"43683bb280330f3d36f0f2a3932a4867b9603e9c","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:4ac4546821584736798aaa9e97da9f6eaf689ea3:43683bb280330f3d36f0f2a3932a4867b9603e9c"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"4ac4546821584736798aaa9e97da9f6eaf689ea3","version_start_inclusive":true,"version_end":"d8e27d2d22b6e2df3a0125b8c08e9aace38c954c","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:4ac4546821584736798aaa9e97da9f6eaf689ea3:d8e27d2d22b6e2df3a0125b8c08e9aace38c954c"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.7","version_start_inclusive":true,"version_end":"6.7","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.7:6.7"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"0","version_start_inclusive":true,"version_end":"6.7","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:0:6.7"},{"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.*"}],"exploit_refs":[],"news":[],"references":[{"url":"https://git.kernel.org/stable/c/239cec25a22662dbd80f57d94b38178c8be95269","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/d0862de7c866c5bd7c32531f66738c21197af888","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/43683bb280330f3d36f0f2a3932a4867b9603e9c","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/d8e27d2d22b6e2df3a0125b8c08e9aace38c954c","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2026-06-24T16:30:25.232000Z","label":"CVE published","source":null}]}