{"id":"CVE-2025-40284","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-40284","generatedAt":"2026-10-28T03:27:15.162Z","title":"In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: cancel mesh send timer when hdev removed mesh_send_done timer is not canceled when hdev is removed, which causes crash if the timer triggers after hdev is gone.","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: MGMT: cancel mesh send timer when hdev removed\n\nmesh_send_done timer is not canceled when hdev is removed, which causes\ncrash if the timer triggers after hdev is gone.\n\nCancel the timer when MGMT removes the hdev, like other MGMT timers.\n\nShould fix the BUG: sporadically seen by BlueZ test bot\n(in \"Mesh - Send cancel - 1\" test).\n\nLog:\n------\nBUG: KASAN: slab-use-after-free in run_timer_softirq+0x76b/0x7d0\n...\nFreed by task 36:\n kasan_save_stack+0x24/0x50\n kasan_save_track+0x14/0x30\n __kasan_save_free_info+0x3a/0x60\n __kasan_slab_free+0x43/0x70\n kfree+0x103/0x500\n device_release+0x9a/0x210\n kobject_put+0x100/0x1e0\n vhci_release+0x18b/0x240\n------","published":"2025-12-06T22:15:57.000Z","lastModified":"2026-10-15T22:19:07.000Z","status":"Deferred","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":{"version":"3.1","score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":[],"affected":[],"epss":{"score":0.00138,"percentile":0.0319,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.14%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://git.kernel.org/stable/c/2927ff643607eddf4f03d10ef80fe10d977154aa","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/55fb52ffdd62850d667ebed842815e072d3c9961","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7b6b6c077cad0601d62c3c34ab7ce3fb25deda7b","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/990e6143b0ca0c66f099d67d00c112bf59b30d76","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/fd62ca5ad136dcf6f5aa308423b299a6be6f54ea","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-40284","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}