CVE-2024-27398 (GCVE-0-2024-27398)

Vulnerability from cvelistv5 – Published: 2024-05-13 10:22 – Updated: 2026-05-23 15:42
VLAI
Title
Bluetooth: Fix use-after-free bugs caused by sco_sock_timeout
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix use-after-free bugs caused by sco_sock_timeout When the sco connection is established and then, the sco socket is releasing, timeout_work will be scheduled to judge whether the sco disconnection is timeout. The sock will be deallocated later, but it is dereferenced again in sco_sock_timeout. As a result, the use-after-free bugs will happen. The root cause is shown below: Cleanup Thread | Worker Thread sco_sock_release | sco_sock_close | __sco_sock_close | sco_sock_set_timer | schedule_delayed_work | sco_sock_kill | (wait a time) sock_put(sk) //FREE | sco_sock_timeout | sock_hold(sk) //USE The KASAN report triggered by POC is shown below: [ 95.890016] ================================================================== [ 95.890496] BUG: KASAN: slab-use-after-free in sco_sock_timeout+0x5e/0x1c0 [ 95.890755] Write of size 4 at addr ffff88800c388080 by task kworker/0:0/7 ... [ 95.890755] Workqueue: events sco_sock_timeout [ 95.890755] Call Trace: [ 95.890755] <TASK> [ 95.890755] dump_stack_lvl+0x45/0x110 [ 95.890755] print_address_description+0x78/0x390 [ 95.890755] print_report+0x11b/0x250 [ 95.890755] ? __virt_addr_valid+0xbe/0xf0 [ 95.890755] ? sco_sock_timeout+0x5e/0x1c0 [ 95.890755] kasan_report+0x139/0x170 [ 95.890755] ? update_load_avg+0xe5/0x9f0 [ 95.890755] ? sco_sock_timeout+0x5e/0x1c0 [ 95.890755] kasan_check_range+0x2c3/0x2e0 [ 95.890755] sco_sock_timeout+0x5e/0x1c0 [ 95.890755] process_one_work+0x561/0xc50 [ 95.890755] worker_thread+0xab2/0x13c0 [ 95.890755] ? pr_cont_work+0x490/0x490 [ 95.890755] kthread+0x279/0x300 [ 95.890755] ? pr_cont_work+0x490/0x490 [ 95.890755] ? kthread_blkcg+0xa0/0xa0 [ 95.890755] ret_from_fork+0x34/0x60 [ 95.890755] ? kthread_blkcg+0xa0/0xa0 [ 95.890755] ret_from_fork_asm+0x11/0x20 [ 95.890755] </TASK> [ 95.890755] [ 95.890755] Allocated by task 506: [ 95.890755] kasan_save_track+0x3f/0x70 [ 95.890755] __kasan_kmalloc+0x86/0x90 [ 95.890755] __kmalloc+0x17f/0x360 [ 95.890755] sk_prot_alloc+0xe1/0x1a0 [ 95.890755] sk_alloc+0x31/0x4e0 [ 95.890755] bt_sock_alloc+0x2b/0x2a0 [ 95.890755] sco_sock_create+0xad/0x320 [ 95.890755] bt_sock_create+0x145/0x320 [ 95.890755] __sock_create+0x2e1/0x650 [ 95.890755] __sys_socket+0xd0/0x280 [ 95.890755] __x64_sys_socket+0x75/0x80 [ 95.890755] do_syscall_64+0xc4/0x1b0 [ 95.890755] entry_SYSCALL_64_after_hwframe+0x67/0x6f [ 95.890755] [ 95.890755] Freed by task 506: [ 95.890755] kasan_save_track+0x3f/0x70 [ 95.890755] kasan_save_free_info+0x40/0x50 [ 95.890755] poison_slab_object+0x118/0x180 [ 95.890755] __kasan_slab_free+0x12/0x30 [ 95.890755] kfree+0xb2/0x240 [ 95.890755] __sk_destruct+0x317/0x410 [ 95.890755] sco_sock_release+0x232/0x280 [ 95.890755] sock_close+0xb2/0x210 [ 95.890755] __fput+0x37f/0x770 [ 95.890755] task_work_run+0x1ae/0x210 [ 95.890755] get_signal+0xe17/0xf70 [ 95.890755] arch_do_signal_or_restart+0x3f/0x520 [ 95.890755] syscall_exit_to_user_mode+0x55/0x120 [ 95.890755] do_syscall_64+0xd1/0x1b0 [ 95.890755] entry_SYSCALL_64_after_hwframe+0x67/0x6f [ 95.890755] [ 95.890755] The buggy address belongs to the object at ffff88800c388000 [ 95.890755] which belongs to the cache kmalloc-1k of size 1024 [ 95.890755] The buggy address is located 128 bytes inside of [ 95.890755] freed 1024-byte region [ffff88800c388000, ffff88800c388400) [ 95.890755] [ 95.890755] The buggy address belongs to the physical page: [ 95.890755] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88800c38a800 pfn:0xc388 [ 95.890755] head: order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 95.890755] ano ---truncated---
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 48669c81a65628ef234cbdd91b9395952c7c27fe , < 1b33d55fb7355e27f8c82cd4ecd560f162469249 (git)
Affected: 37d7ae2b0578f2373674a755402ee722e96edc08 , < 3212afd00e3cda790fd0583cb3eaef8f9575a014 (git)
Affected: a1073aad497d0d071a71f61b721966a176d50c08 , < 33a6e92161a78c1073d90e27abe28d746feb0a53 (git)
Affected: ba316be1b6a00db7126ed9a39f9bee434a508043 , < 6a18eeb1b3bbc67c20d9609c31dca6a69b4bcde5 (git)
Affected: ba316be1b6a00db7126ed9a39f9bee434a508043 , < bfab2c1f7940a232cd519e82fff137e308abfd93 (git)
Affected: ba316be1b6a00db7126ed9a39f9bee434a508043 , < 012363cb1bec5f33a7b94629ab2c1086f30280f2 (git)
Affected: ba316be1b6a00db7126ed9a39f9bee434a508043 , < 50c2037fc28df870ef29d9728c770c8955d32178 (git)
Affected: ba316be1b6a00db7126ed9a39f9bee434a508043 , < 483bc08181827fc475643272ffb69c533007e546 (git)
Affected: fea63ccd928c01573306983346588b26cffb5572 (git)
Affected: ec1f74319bb35c1c90c25014ec0f6ea6c3ca2134 (git)
Affected: b657bba82ff6a007d84fd076bd73b11131726a2b (git)
Affected: 4.19.207 , < 4.19.314 (semver)
Affected: 5.4.148 , < 5.4.276 (semver)
Affected: 5.10.67 , < 5.10.217 (semver)
Affected: 4.14.263 , < 4.15 (semver)
Affected: 5.13.19 , < 5.14 (semver)
Affected: 5.14.6 , < 5.15 (semver)
Create a notification for this product.
Linux Linux Affected: 5.15
Unaffected: 0 , < 5.15 (semver)
Unaffected: 4.19.314 , ≤ 4.19.* (semver)
Unaffected: 5.4.276 , ≤ 5.4.* (semver)
Unaffected: 5.10.217 , ≤ 5.10.* (semver)
Unaffected: 5.15.159 , ≤ 5.15.* (semver)
Unaffected: 6.1.91 , ≤ 6.1.* (semver)
Unaffected: 6.6.31 , ≤ 6.6.* (semver)
Unaffected: 6.8.10 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: Fix use-after-free bugs caused by sco_sock_timeout\n\nWhen the sco connection is established and then, the sco socket\nis releasing, timeout_work will be scheduled to judge whether\nthe sco disconnection is timeout. The sock will be deallocated\nlater, but it is dereferenced again in sco_sock_timeout. As a\nresult, the use-after-free bugs will happen. The root cause is\nshown below:\n\n    Cleanup Thread               |      Worker Thread\nsco_sock_release                 |\n  sco_sock_close                 |\n    __sco_sock_close             |\n      sco_sock_set_timer         |\n        schedule_delayed_work    |\n  sco_sock_kill                  |    (wait a time)\n    sock_put(sk) //FREE          |  sco_sock_timeout\n                                 |    sock_hold(sk) //USE\n\nThe KASAN report triggered by POC is shown below:\n\n[   95.890016] ==================================================================\n[   95.890496] BUG: KASAN: slab-use-after-free in sco_sock_timeout+0x5e/0x1c0\n[   95.890755] Write of size 4 at addr ffff88800c388080 by task kworker/0:0/7\n...\n[   95.890755] Workqueue: events sco_sock_timeout\n[   95.890755] Call Trace:\n[   95.890755]  \u003cTASK\u003e\n[   95.890755]  dump_stack_lvl+0x45/0x110\n[   95.890755]  print_address_description+0x78/0x390\n[   95.890755]  print_report+0x11b/0x250\n[   95.890755]  ? __virt_addr_valid+0xbe/0xf0\n[   95.890755]  ? sco_sock_timeout+0x5e/0x1c0\n[   95.890755]  kasan_report+0x139/0x170\n[   95.890755]  ? update_load_avg+0xe5/0x9f0\n[   95.890755]  ? sco_sock_timeout+0x5e/0x1c0\n[   95.890755]  kasan_check_range+0x2c3/0x2e0\n[   95.890755]  sco_sock_timeout+0x5e/0x1c0\n[   95.890755]  process_one_work+0x561/0xc50\n[   95.890755]  worker_thread+0xab2/0x13c0\n[   95.890755]  ? pr_cont_work+0x490/0x490\n[   95.890755]  kthread+0x279/0x300\n[   95.890755]  ? pr_cont_work+0x490/0x490\n[   95.890755]  ? kthread_blkcg+0xa0/0xa0\n[   95.890755]  ret_from_fork+0x34/0x60\n[   95.890755]  ? kthread_blkcg+0xa0/0xa0\n[   95.890755]  ret_from_fork_asm+0x11/0x20\n[   95.890755]  \u003c/TASK\u003e\n[   95.890755]\n[   95.890755] Allocated by task 506:\n[   95.890755]  kasan_save_track+0x3f/0x70\n[   95.890755]  __kasan_kmalloc+0x86/0x90\n[   95.890755]  __kmalloc+0x17f/0x360\n[   95.890755]  sk_prot_alloc+0xe1/0x1a0\n[   95.890755]  sk_alloc+0x31/0x4e0\n[   95.890755]  bt_sock_alloc+0x2b/0x2a0\n[   95.890755]  sco_sock_create+0xad/0x320\n[   95.890755]  bt_sock_create+0x145/0x320\n[   95.890755]  __sock_create+0x2e1/0x650\n[   95.890755]  __sys_socket+0xd0/0x280\n[   95.890755]  __x64_sys_socket+0x75/0x80\n[   95.890755]  do_syscall_64+0xc4/0x1b0\n[   95.890755]  entry_SYSCALL_64_after_hwframe+0x67/0x6f\n[   95.890755]\n[   95.890755] Freed by task 506:\n[   95.890755]  kasan_save_track+0x3f/0x70\n[   95.890755]  kasan_save_free_info+0x40/0x50\n[   95.890755]  poison_slab_object+0x118/0x180\n[   95.890755]  __kasan_slab_free+0x12/0x30\n[   95.890755]  kfree+0xb2/0x240\n[   95.890755]  __sk_destruct+0x317/0x410\n[   95.890755]  sco_sock_release+0x232/0x280\n[   95.890755]  sock_close+0xb2/0x210\n[   95.890755]  __fput+0x37f/0x770\n[   95.890755]  task_work_run+0x1ae/0x210\n[   95.890755]  get_signal+0xe17/0xf70\n[   95.890755]  arch_do_signal_or_restart+0x3f/0x520\n[   95.890755]  syscall_exit_to_user_mode+0x55/0x120\n[   95.890755]  do_syscall_64+0xd1/0x1b0\n[   95.890755]  entry_SYSCALL_64_after_hwframe+0x67/0x6f\n[   95.890755]\n[   95.890755] The buggy address belongs to the object at ffff88800c388000\n[   95.890755]  which belongs to the cache kmalloc-1k of size 1024\n[   95.890755] The buggy address is located 128 bytes inside of\n[   95.890755]  freed 1024-byte region [ffff88800c388000, ffff88800c388400)\n[   95.890755]\n[   95.890755] The buggy address belongs to the physical page:\n[   95.890755] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88800c38a800 pfn:0xc388\n[   95.890755] head: order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0\n[   95.890755] ano\n---truncated---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-23T15:42:13.582Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/1b33d55fb7355e27f8c82cd4ecd560f162469249"
        },
        {
          "url": "https://git.kernel.org/stable/c/3212afd00e3cda790fd0583cb3eaef8f9575a014"
        },
        {
          "url": "https://git.kernel.org/stable/c/33a6e92161a78c1073d90e27abe28d746feb0a53"
        },
        {
          "url": "https://git.kernel.org/stable/c/6a18eeb1b3bbc67c20d9609c31dca6a69b4bcde5"
        },
        {
          "url": "https://git.kernel.org/stable/c/bfab2c1f7940a232cd519e82fff137e308abfd93"
        },
        {
          "url": "https://git.kernel.org/stable/c/012363cb1bec5f33a7b94629ab2c1086f30280f2"
        },
        {
          "url": "https://git.kernel.org/stable/c/50c2037fc28df870ef29d9728c770c8955d32178"
        },
        {
          "url": "https://git.kernel.org/stable/c/483bc08181827fc475643272ffb69c533007e546"
        }
      ],
      "title": "Bluetooth: Fix use-after-free bugs caused by sco_sock_timeout",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-27398",
    "datePublished": "2024-05-13T10:22:26.624Z",
    "dateReserved": "2024-02-25T13:47:42.681Z",
    "dateUpdated": "2026-05-23T15:42:13.582Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2024-27398",
      "date": "2026-06-06",
      "epss": "0.0072",
      "percentile": "0.72899"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-27398\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-14T15:12:28.623\",\"lastModified\":\"2026-01-22T20:37:07.763\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nBluetooth: Fix use-after-free bugs caused by sco_sock_timeout\\n\\nWhen the sco connection is established and then, the sco socket\\nis releasing, timeout_work will be scheduled to judge whether\\nthe sco disconnection is timeout. The sock will be deallocated\\nlater, but it is dereferenced again in sco_sock_timeout. As a\\nresult, the use-after-free bugs will happen. The root cause is\\nshown below:\\n\\n    Cleanup Thread               |      Worker Thread\\nsco_sock_release                 |\\n  sco_sock_close                 |\\n    __sco_sock_close             |\\n      sco_sock_set_timer         |\\n        schedule_delayed_work    |\\n  sco_sock_kill                  |    (wait a time)\\n    sock_put(sk) //FREE          |  sco_sock_timeout\\n                                 |    sock_hold(sk) //USE\\n\\nThe KASAN report triggered by POC is shown below:\\n\\n[   95.890016] ==================================================================\\n[   95.890496] BUG: KASAN: slab-use-after-free in sco_sock_timeout+0x5e/0x1c0\\n[   95.890755] Write of size 4 at addr ffff88800c388080 by task kworker/0:0/7\\n...\\n[   95.890755] Workqueue: events sco_sock_timeout\\n[   95.890755] Call Trace:\\n[   95.890755]  \u003cTASK\u003e\\n[   95.890755]  dump_stack_lvl+0x45/0x110\\n[   95.890755]  print_address_description+0x78/0x390\\n[   95.890755]  print_report+0x11b/0x250\\n[   95.890755]  ? __virt_addr_valid+0xbe/0xf0\\n[   95.890755]  ? sco_sock_timeout+0x5e/0x1c0\\n[   95.890755]  kasan_report+0x139/0x170\\n[   95.890755]  ? update_load_avg+0xe5/0x9f0\\n[   95.890755]  ? sco_sock_timeout+0x5e/0x1c0\\n[   95.890755]  kasan_check_range+0x2c3/0x2e0\\n[   95.890755]  sco_sock_timeout+0x5e/0x1c0\\n[   95.890755]  process_one_work+0x561/0xc50\\n[   95.890755]  worker_thread+0xab2/0x13c0\\n[   95.890755]  ? pr_cont_work+0x490/0x490\\n[   95.890755]  kthread+0x279/0x300\\n[   95.890755]  ? pr_cont_work+0x490/0x490\\n[   95.890755]  ? kthread_blkcg+0xa0/0xa0\\n[   95.890755]  ret_from_fork+0x34/0x60\\n[   95.890755]  ? kthread_blkcg+0xa0/0xa0\\n[   95.890755]  ret_from_fork_asm+0x11/0x20\\n[   95.890755]  \u003c/TASK\u003e\\n[   95.890755]\\n[   95.890755] Allocated by task 506:\\n[   95.890755]  kasan_save_track+0x3f/0x70\\n[   95.890755]  __kasan_kmalloc+0x86/0x90\\n[   95.890755]  __kmalloc+0x17f/0x360\\n[   95.890755]  sk_prot_alloc+0xe1/0x1a0\\n[   95.890755]  sk_alloc+0x31/0x4e0\\n[   95.890755]  bt_sock_alloc+0x2b/0x2a0\\n[   95.890755]  sco_sock_create+0xad/0x320\\n[   95.890755]  bt_sock_create+0x145/0x320\\n[   95.890755]  __sock_create+0x2e1/0x650\\n[   95.890755]  __sys_socket+0xd0/0x280\\n[   95.890755]  __x64_sys_socket+0x75/0x80\\n[   95.890755]  do_syscall_64+0xc4/0x1b0\\n[   95.890755]  entry_SYSCALL_64_after_hwframe+0x67/0x6f\\n[   95.890755]\\n[   95.890755] Freed by task 506:\\n[   95.890755]  kasan_save_track+0x3f/0x70\\n[   95.890755]  kasan_save_free_info+0x40/0x50\\n[   95.890755]  poison_slab_object+0x118/0x180\\n[   95.890755]  __kasan_slab_free+0x12/0x30\\n[   95.890755]  kfree+0xb2/0x240\\n[   95.890755]  __sk_destruct+0x317/0x410\\n[   95.890755]  sco_sock_release+0x232/0x280\\n[   95.890755]  sock_close+0xb2/0x210\\n[   95.890755]  __fput+0x37f/0x770\\n[   95.890755]  task_work_run+0x1ae/0x210\\n[   95.890755]  get_signal+0xe17/0xf70\\n[   95.890755]  arch_do_signal_or_restart+0x3f/0x520\\n[   95.890755]  syscall_exit_to_user_mode+0x55/0x120\\n[   95.890755]  do_syscall_64+0xd1/0x1b0\\n[   95.890755]  entry_SYSCALL_64_after_hwframe+0x67/0x6f\\n[   95.890755]\\n[   95.890755] The buggy address belongs to the object at ffff88800c388000\\n[   95.890755]  which belongs to the cache kmalloc-1k of size 1024\\n[   95.890755] The buggy address is located 128 bytes inside of\\n[   95.890755]  freed 1024-byte region [ffff88800c388000, ffff88800c388400)\\n[   95.890755]\\n[   95.890755] The buggy address belongs to the physical page:\\n[   95.890755] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88800c38a800 pfn:0xc388\\n[   95.890755] head: order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0\\n[   95.890755] ano\\n---truncated---\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: Bluetooth: corrige errores de use-after-free causados por sco_sock_timeout Cuando se establece la conexi\u00f3n con sco y luego se libera el socket de sco, se programar\u00e1 timeout_work para juzgar si la desconexi\u00f3n de sco es se acab\u00f3 el tiempo. El calcet\u00edn se desasignar\u00e1 m\u00e1s tarde, pero se eliminar\u00e1 la referencia nuevamente en sco_sock_timeout. Como resultado, se producir\u00e1n errores de use-after-free. La causa ra\u00edz se muestra a continuaci\u00f3n: Hilo de limpieza | Hilo de trabajo sco_sock_release | sco_sock_close | __sco_sock_close | sco_sock_set_timer | horario_trabajo_retrasado | sco_sock_kill | (espera un momento) sock_put(sk) //GRATIS | sco_sock_timeout | sock_hold(sk) //USE El informe KASAN activado por POC se muestra a continuaci\u00f3n: [ 95.890016] =============================== ==================================== [95.890496] ERROR: KASAN: uso de losa despu\u00e9s de la liberaci\u00f3n en sco_sock_timeout+0x5e/0x1c0 [95.890755] Escritura de tama\u00f1o 4 en la direcci\u00f3n ffff88800c388080 por tarea kworker/0:0/7... [95.890755] Cola de trabajo: eventos sco_sock_timeout [95.890755] Seguimiento de llamadas: [95.890755] [95.890755] dump_stack_lvl+0x45/0x110 [ 95.890755] print_address_description+0x78/0x390 [ 95.890755] print_report+0x11b/0x250 [ 95.890755] ? __virt_addr_valid+0xbe/0xf0 [95.890755]? sco_sock_timeout+0x5e/0x1c0 [ 95.890755] kasan_report+0x139/0x170 [ 95.890755] ? update_load_avg+0xe5/0x9f0 [95.890755]? sco_sock_timeout+0x5e/0x1c0 [ 95.890755] kasan_check_range+0x2c3/0x2e0 [ 95.890755] sco_sock_timeout+0x5e/0x1c0 [ 95.890755] Process_one_work+0x561/0xc50 [ 95.890755] hilo+0xab2/0x13c0 [95.890755]? pr_cont_work+0x490/0x490 [ 95.890755] kthread+0x279/0x300 [ 95.890755] ? pr_cont_work+0x490/0x490 [95.890755]? kthread_blkcg+0xa0/0xa0 [95.890755] ret_from_fork+0x34/0x60 [95.890755]? kthread_blkcg+0xa0/0xa0 [ 95.890755] ret_from_fork_asm+0x11/0x20 [ 95.890755]  [ 95.890755] [ 95.890755] Asignado por la tarea 506: [ 95.890755] /0x70 [ 95.890755] __kasan_kmalloc+0x86/0x90 [ 95.890755] __kmalloc+0x17f/0x360 [ 95.890755] sk_prot_alloc+0xe1/0x1a0 [ 95.890755] sk_alloc+0x31/0x4e0 [ 95.890755] bt_sock_alloc+0x2b/0x2a0 [ sco_s ock_create+0xad/0x320 [ 95.890755] bt_sock_create+0x145/0x320 [ 95.890755] __sock_create+ 0x2e1/0x650 [ 95.890755] __sys_socket+0xd0/0x280 [ 95.890755] __x64_sys_socket+0x75/0x80 [ 95.890755] do_syscall_64+0xc4/0x1b0 [ 95.890755] SYSCALL_64_after_hwframe+0x67/0x6f [ 95.890755] [ 95.890755] Liberado por la tarea 506: [ 95.890755] kasan_save_track +0x3f/0x70 [ 95.890755] kasan_save_free_info+0x40/0x50 [ 95.890755] veneno_slab_object+0x118/0x180 [ 95.890755] __kasan_slab_free+0x12/0x30 [ 95.890755] 0x240 [95.890755] __sk_destruct+0x317/0x410 [95.890755] sco_sock_release+0x232 /0x280 [ 95.890755] sock_close+0xb2/0x210 [ 95.890755] __fput+0x37f/0x770 [ 95.890755] task_work_run+0x1ae/0x210 [ 95.890755] get_signal+0xe17/0xf70 [ 95.8 90755] arch_do_signal_or_restart+0x3f/0x520 [ 95.890755] syscall_exit_to_user_mode+0x55/0x120 [ 95.890755] do_syscall_64+0xd1/0x1b0 [ 95.890755] Entry_SYSCALL_64_after_hwframe+0x67/0x6f [ 95.890755] [ 95.890755] La direcci\u00f3n con errores pertenece al objeto en ffff88800c388000 [ 95.89 0755] que pertenece al cach\u00e9 kmalloc-1k de tama\u00f1o 1024 [ 95.890755] El buggy La direcci\u00f3n se encuentra a 128 bytes dentro de [95.890755] regi\u00f3n liberada de 1024 bytes [ffff88800c388000, ffff88800c388400) [95.890755] [95.890755] La direcci\u00f3n con errores pertenece a la p\u00e1gina f\u00edsica: [95.890755] p\u00e1gina: refcount:1 mapcount:0 mapeo: 0000000000000000 \u00edndice :0xffff88800c38a800 pfn:0xc388 [ 95.890755] head: orden:3 entero_mapcount:0 nr_pages_mapped:0 pincount:0 [ 95.890755] a\u00f1o ---truncado---\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B8EDB836-4E6A-4B71-B9B2-AA3E03E0F646\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"CA277A6C-83EC-4536-9125-97B84C4FAF59\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.14.263\",\"versionEndExcluding\":\"4.15\",\"matchCriteriaId\":\"CFC94B29-7464-440D-9209-C9654BD88E2D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.19.207\",\"versionEndExcluding\":\"4.19.314\",\"matchCriteriaId\":\"C13F62F5-F480-4934-AEFC-0B1967185783\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.4.148\",\"versionEndExcluding\":\"5.4.276\",\"matchCriteriaId\":\"7552F166-DCD1-49B0-9123-D82AEF3FAA33\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.10.67\",\"versionEndExcluding\":\"5.10.217\",\"matchCriteriaId\":\"005E663C-323A-40F6-8199-FA3FAD7D9309\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.13.19\",\"versionEndExcluding\":\"5.14\",\"matchCriteriaId\":\"097A0850-FAA6-4FFF-88C2-F5B49B5CE740\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.14.6\",\"versionEndExcluding\":\"5.15.159\",\"matchCriteriaId\":\"2FE170D5-9AAD-437E-9557-FC362CDD46F8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.91\",\"matchCriteriaId\":\"4F8C886C-75AA-469B-A6A9-12BF1A29C0D5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.31\",\"matchCriteriaId\":\"CDDB1F69-36AC-41C1-9192-E7CCEF5FFC00\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.8.10\",\"matchCriteriaId\":\"6A6B920C-8D8F-4130-86B4-AD334F4CF2E3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"22BEDD49-2C6D-402D-9DBF-6646F6ECD10B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"DF73CB2A-DFFD-46FB-9BFE-AA394F27EA37\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"52048DDA-FC5A-4363-95A0-A6357B4D7F8C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.9:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"A06B2CCF-3F43-4FA9-8773-C83C3F5764B2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.9:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"F850DCEC-E08B-4317-A33B-D2DCF39F601B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.9:rc6:*:*:*:*:*:*\",\"matchCriteriaId\":\"91326417-E981-482E-A5A3-28BC1327521B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.9:rc7:*:*:*:*:*:*\",\"matchCriteriaId\":\"DAECDCD8-F556-4606-8D7B-5C6D47A501F2\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/012363cb1bec5f33a7b94629ab2c1086f30280f2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/1b33d55fb7355e27f8c82cd4ecd560f162469249\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3212afd00e3cda790fd0583cb3eaef8f9575a014\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/33a6e92161a78c1073d90e27abe28d746feb0a53\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https: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    "vulnrichment": {
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\"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-11-30T08:03:15.930Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-27398\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-06-12T15:29:55.290790Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-06-12T15:30:02.271Z\"}}], \"cna\": {\"title\": \"Bluetooth: Fix use-after-free bugs caused by sco_sock_timeout\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"48669c81a65628ef234cbdd91b9395952c7c27fe\", \"lessThan\": 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\"affected\", \"version\": \"4.14.263\", \"lessThan\": \"4.15\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"5.13.19\", \"lessThan\": \"5.14\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"5.14.6\", \"lessThan\": \"5.15\", \"versionType\": \"semver\"}], \"programFiles\": [\"net/bluetooth/sco.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.15\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.15\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.19.314\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.276\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.217\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.159\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.91\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.31\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8.10\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.8.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/bluetooth/sco.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/1b33d55fb7355e27f8c82cd4ecd560f162469249\"}, {\"url\": \"https://git.kernel.org/stable/c/3212afd00e3cda790fd0583cb3eaef8f9575a014\"}, {\"url\": \"https://git.kernel.org/stable/c/33a6e92161a78c1073d90e27abe28d746feb0a53\"}, {\"url\": \"https://git.kernel.org/stable/c/6a18eeb1b3bbc67c20d9609c31dca6a69b4bcde5\"}, {\"url\": \"https://git.kernel.org/stable/c/bfab2c1f7940a232cd519e82fff137e308abfd93\"}, {\"url\": \"https://git.kernel.org/stable/c/012363cb1bec5f33a7b94629ab2c1086f30280f2\"}, {\"url\": \"https://git.kernel.org/stable/c/50c2037fc28df870ef29d9728c770c8955d32178\"}, {\"url\": \"https://git.kernel.org/stable/c/483bc08181827fc475643272ffb69c533007e546\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nBluetooth: Fix use-after-free bugs caused by sco_sock_timeout\\n\\nWhen the sco connection is established and then, the sco socket\\nis releasing, timeout_work will be scheduled to judge whether\\nthe sco disconnection is timeout. The sock will be deallocated\\nlater, but it is dereferenced again in sco_sock_timeout. As a\\nresult, the use-after-free bugs will happen. The root cause is\\nshown below:\\n\\n    Cleanup Thread               |      Worker Thread\\nsco_sock_release                 |\\n  sco_sock_close                 |\\n    __sco_sock_close             |\\n      sco_sock_set_timer         |\\n        schedule_delayed_work    |\\n  sco_sock_kill                  |    (wait a time)\\n    sock_put(sk) //FREE          |  sco_sock_timeout\\n                                 |    sock_hold(sk) //USE\\n\\nThe KASAN report triggered by POC is shown below:\\n\\n[   95.890016] ==================================================================\\n[   95.890496] BUG: KASAN: slab-use-after-free in sco_sock_timeout+0x5e/0x1c0\\n[   95.890755] Write of size 4 at addr ffff88800c388080 by task kworker/0:0/7\\n...\\n[   95.890755] Workqueue: events sco_sock_timeout\\n[   95.890755] Call Trace:\\n[   95.890755]  \u003cTASK\u003e\\n[   95.890755]  dump_stack_lvl+0x45/0x110\\n[   95.890755]  print_address_description+0x78/0x390\\n[   95.890755]  print_report+0x11b/0x250\\n[   95.890755]  ? __virt_addr_valid+0xbe/0xf0\\n[   95.890755]  ? sco_sock_timeout+0x5e/0x1c0\\n[   95.890755]  kasan_report+0x139/0x170\\n[   95.890755]  ? update_load_avg+0xe5/0x9f0\\n[   95.890755]  ? sco_sock_timeout+0x5e/0x1c0\\n[   95.890755]  kasan_check_range+0x2c3/0x2e0\\n[   95.890755]  sco_sock_timeout+0x5e/0x1c0\\n[   95.890755]  process_one_work+0x561/0xc50\\n[   95.890755]  worker_thread+0xab2/0x13c0\\n[   95.890755]  ? pr_cont_work+0x490/0x490\\n[   95.890755]  kthread+0x279/0x300\\n[   95.890755]  ? pr_cont_work+0x490/0x490\\n[   95.890755]  ? kthread_blkcg+0xa0/0xa0\\n[   95.890755]  ret_from_fork+0x34/0x60\\n[   95.890755]  ? kthread_blkcg+0xa0/0xa0\\n[   95.890755]  ret_from_fork_asm+0x11/0x20\\n[   95.890755]  \u003c/TASK\u003e\\n[   95.890755]\\n[   95.890755] Allocated by task 506:\\n[   95.890755]  kasan_save_track+0x3f/0x70\\n[   95.890755]  __kasan_kmalloc+0x86/0x90\\n[   95.890755]  __kmalloc+0x17f/0x360\\n[   95.890755]  sk_prot_alloc+0xe1/0x1a0\\n[   95.890755]  sk_alloc+0x31/0x4e0\\n[   95.890755]  bt_sock_alloc+0x2b/0x2a0\\n[   95.890755]  sco_sock_create+0xad/0x320\\n[   95.890755]  bt_sock_create+0x145/0x320\\n[   95.890755]  __sock_create+0x2e1/0x650\\n[   95.890755]  __sys_socket+0xd0/0x280\\n[   95.890755]  __x64_sys_socket+0x75/0x80\\n[   95.890755]  do_syscall_64+0xc4/0x1b0\\n[   95.890755]  entry_SYSCALL_64_after_hwframe+0x67/0x6f\\n[   95.890755]\\n[   95.890755] Freed by task 506:\\n[   95.890755]  kasan_save_track+0x3f/0x70\\n[   95.890755]  kasan_save_free_info+0x40/0x50\\n[   95.890755]  poison_slab_object+0x118/0x180\\n[   95.890755]  __kasan_slab_free+0x12/0x30\\n[   95.890755]  kfree+0xb2/0x240\\n[   95.890755]  __sk_destruct+0x317/0x410\\n[   95.890755]  sco_sock_release+0x232/0x280\\n[   95.890755]  sock_close+0xb2/0x210\\n[   95.890755]  __fput+0x37f/0x770\\n[   95.890755]  task_work_run+0x1ae/0x210\\n[   95.890755]  get_signal+0xe17/0xf70\\n[   95.890755]  arch_do_signal_or_restart+0x3f/0x520\\n[   95.890755]  syscall_exit_to_user_mode+0x55/0x120\\n[   95.890755]  do_syscall_64+0xd1/0x1b0\\n[   95.890755]  entry_SYSCALL_64_after_hwframe+0x67/0x6f\\n[   95.890755]\\n[   95.890755] The buggy address belongs to the object at ffff88800c388000\\n[   95.890755]  which belongs to the cache kmalloc-1k of size 1024\\n[   95.890755] The buggy address is located 128 bytes inside of\\n[   95.890755]  freed 1024-byte region [ffff88800c388000, ffff88800c388400)\\n[   95.890755]\\n[   95.890755] The buggy address belongs to the physical page:\\n[   95.890755] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88800c38a800 pfn:0xc388\\n[   95.890755] head: order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0\\n[   95.890755] ano\\n---truncated---\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.314\", \"versionStartIncluding\": \"4.19.207\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.276\", \"versionStartIncluding\": \"5.4.148\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.217\", \"versionStartIncluding\": \"5.10.67\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.159\", \"versionStartIncluding\": \"5.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.91\", \"versionStartIncluding\": \"5.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.31\", \"versionStartIncluding\": \"5.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8.10\", \"versionStartIncluding\": \"5.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.9\", \"versionStartIncluding\": \"5.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"4.14.263\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"5.13.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"5.14.6\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-23T15:42:13.582Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-27398\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-23T15:42:13.582Z\", \"dateReserved\": \"2024-02-25T13:47:42.681Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-13T10:22:26.624Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.