{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2022-49470 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2022-49470 is a high-severity use after free vulnerability in Linux kernel, published on 26 Feb 2025. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2022-49470 and fix it if it is affected.\n\nWhat it is: CVE-2022-49470 is a high-severity use after free vulnerability in Linux kernel, published on 26 Feb 2025. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2022-49470 in the wild and no public exploit code.\n\nAffected product: Linux kernel. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2022-49470/ (Markdown: https://insights.sbomify.com/CVE-2022-49470/index.md)","id":"CVE-2022-49470","markdown":"https://insights.sbomify.com/CVE-2022-49470/index.md","name":"CVE-2022-49470","record":{"aliases":["DEBIAN-CVE-2022-49470","GHSA-3r4m-vx24-mm6m","ROOT-OS-DEBIAN-11-CVE-2022-49470","UBUNTU-CVE-2022-49470"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel Bluetooth","requires_auth":"none","summary":"A use-after-free vulnerability in the Linux kernel's Bluetooth driver allows attackers to cause a denial of service or potentially execute code.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-416","name":"Use After Free"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btmtksdio: fix use-after-free at btmtksdio_recv_event\n\nWe should not access skb buffer data anymore after hci_recv_frame was\ncalled.\n\n[   39.634809] BUG: KASAN: use-after-free in btmtksdio_recv_event+0x1b0\n[   39.634855] Read of size 1 at addr ffffff80cf28a60d by task kworker\n[   39.634962] Call trace:\n[   39.634974]  dump_backtrace+0x0/0x3b8\n[   39.634999]  show_stack+0x20/0x2c\n[   39.635016]  dump_stack_lvl+0x60/0x78\n[   39.635040]  print_address_description+0x70/0x2f0\n[   39.635062]  kasan_report+0x154/0x194\n[   39.635079]  __asan_report_load1_noabort+0x44/0x50\n[   39.635099]  btmtksdio_recv_event+0x1b0/0x1c4\n[   39.635129]  btmtksdio_txrx_work+0x6cc/0xac4\n[   39.635157]  process_one_work+0x560/0xc5c\n[   39.635177]  worker_thread+0x7ec/0xcc0\n[   39.635195]  kthread+0x2d0/0x3d0\n[   39.635215]  ret_from_fork+0x10/0x20\n[   39.635247] Allocated by task 0:\n[   39.635260] (stack is not available)\n[   39.635281] Freed by task 2392:\n[   39.635295]  kasan_save_stack+0x38/0x68\n[   39.635319]  kasan_set_track+0x28/0x3c\n[   39.635338]  kasan_set_free_info+0x28/0x4c\n[   39.635357]  ____kasan_slab_free+0x104/0x150\n[   39.635374]  __kasan_slab_free+0x18/0x28\n[   39.635391]  slab_free_freelist_hook+0x114/0x248\n[   39.635410]  kfree+0xf8/0x2b4\n[   39.635427]  skb_free_head+0x58/0x98\n[   39.635447]  skb_release_data+0x2f4/0x410\n[   39.635464]  skb_release_all+0x50/0x60\n[   39.635481]  kfree_skb+0xc8/0x25c\n[   39.635498]  hci_event_packet+0x894/0xca4 [bluetooth]\n[   39.635721]  hci_rx_work+0x1c8/0x68c [bluetooth]\n[   39.635925]  process_one_work+0x560/0xc5c\n[   39.635951]  worker_thread+0x7ec/0xcc0\n[   39.635970]  kthread+0x2d0/0x3d0\n[   39.635990]  ret_from_fork+0x10/0x20\n[   39.636021] The buggy address belongs to the object at ffffff80cf28a600\n                which belongs to the cache kmalloc-512 of size 512\n[   39.636039] The buggy address is located 13 bytes inside of\n                512-byte region [ffffff80cf28a600, ffffff80cf28a800)","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Bluetooth: btmtksdio: fix use-after-free at btmtksdio_recv_event","id":"CVE-2022-49470","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"use_after_free","year":"2022"},"n_packages":0,"n_references":4,"next":{"headline":"rtw89: cfo: check mac_id to avoid out-of-bounds","id":"CVE-2022-49471"},"packages":[],"prev":{"headline":"btrfs: fix anon_dev leak in create_subvol()","id":"CVE-2022-49469"},"products":["Linux"],"published":"2025-02-26","related":[{"cvss_score":8.8,"headline":"Linux Kernel Out-of-Bounds Write","id":"CVE-2026-53266","kev_date_added":"2026-09-18","published":"2026-06-25"},{"cvss_score":8.8,"headline":"Linux Kernel Improper Input Validation","id":"CVE-2013-6282","kev_date_added":"2022-09-15","published":"2013-11-19"},{"cvss_score":8.4,"headline":"Linux Kernel Heap-Based Buffer Overflow","id":"CVE-2022-0185","kev_date_added":"2024-08-21","published":"2022-02-11"},{"cvss_score":8.4,"headline":"Linux Kernel Privilege Escalation","id":"CVE-2013-2094","kev_date_added":"2022-09-15","published":"2013-05-14"},{"cvss_score":7.8,"headline":"Linux Kernel Unspecified","id":"CVE-2026-53362","kev_date_added":"2026-08-27","published":"2026-07-04"},{"cvss_score":7.8,"headline":"Linux Kernel Missing Initialization of a Variable","id":"CVE-2026-46300","kev_date_added":"2026-10-28","published":"2026-05-23"},{"cvss_score":7.8,"headline":"Linux Kernel Race Condition","id":"CVE-2025-39964","kev_date_added":"2026-09-18","published":"2025-10-13"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-08-05","vendors":["Linux"]},"summary":"A use-after-free vulnerability in the Linux kernel's Bluetooth driver allows attackers to cause a denial of service or potentially execute code.","url":"https://insights.sbomify.com/CVE-2022-49470/"}