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

Vulnerability from cvelistv5 – Published: 2024-05-13 10:22 – Updated: 2026-08-05 11:29
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
8 (High)
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-12 15:29 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
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)
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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)
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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---"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:A - Triggering the bug requires an established SCO/eSCO link with an adjacent Bluetooth device, and the remote peer drives connection setup and the disconnect-confirm timing that feeds the race. Per kernel scoring guidance, Bluetooth-dependent flaws are Adjacent.\nAC:L - The attacker controls both sides of the race \u2014 it arms the 2-second disconnect timer via shutdown()/close() and issues the racing close(), and can repeat the connect/close cycle across many sockets until the window is hit. No condition outside the attacker\u0027s influence is required.\nPR:L - Neither bt_sock_create() nor sco_sock_create() performs any capability check, so any unprivileged local user can create, connect, and close a BTPROTO_SCO socket. No CAP_NET_ADMIN or root is needed.\nUI:N - The entire sequence is driven by the attacker\u0027s own socket syscalls and the kernel\u0027s delayed workqueue; no victim action is required.\nS:U - The use-after-free corrupts kernel slab memory within the same kernel security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The freed struct sock can be reclaimed and re-sprayed by the attacker, and sco_sock_timeout() then reads sk-\u003esk_state_change and sk_err from attacker-controlled freed memory, giving a path to arbitrary kernel memory disclosure.\nI:H - sock_hold() performs a 4-byte increment into the freed object and lock_sock()/sk-\u003esk_state_change() write to and indirect-call through freed memory, providing write and control-flow-hijack primitives suitable for privilege escalation.\nA:H - Even unweaponized, the use-after-free writes into and calls through freed slab memory, reliably producing a KASAN splat, oops, or kernel panic as demonstrated by the reporter\u0027s proof-of-concept."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T11:29:32.448Z",
        "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": "2026-08-05T11:29:32.448Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2024-27398",
      "date": "2026-09-15",
      "epss": "0.00828",
      "percentile": "0.55548"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-27398\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-14T15:12:28.623\",\"lastModified\":\"2026-08-04T11:17:43.787\",\"vulnStatus\":\"Modified\",\"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---\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"net/bluetooth/sco.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"48669c81a65628ef234cbdd91b9395952c7c27fe\",\"lessThan\":\"1b33d55fb7355e27f8c82cd4ecd560f162469249\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"37d7ae2b0578f2373674a755402ee722e96edc08\",\"lessThan\":\"3212afd00e3cda790fd0583cb3eaef8f9575a014\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"a1073aad497d0d071a71f61b721966a176d50c08\",\"lessThan\":\"33a6e92161a78c1073d90e27abe28d746feb0a53\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"ba316be1b6a00db7126ed9a39f9bee434a508043\",\"lessThan\":\"6a18eeb1b3bbc67c20d9609c31dca6a69b4bcde5\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"ba316be1b6a00db7126ed9a39f9bee434a508043\",\"lessThan\":\"bfab2c1f7940a232cd519e82fff137e308abfd93\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"ba316be1b6a00db7126ed9a39f9bee434a508043\",\"lessThan\":\"012363cb1bec5f33a7b94629ab2c1086f30280f2\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"ba316be1b6a00db7126ed9a39f9bee434a508043\",\"lessThan\":\"50c2037fc28df870ef29d9728c770c8955d32178\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"ba316be1b6a00db7126ed9a39f9bee434a508043\",\"lessThan\":\"483bc08181827fc475643272ffb69c533007e546\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"fea63ccd928c01573306983346588b26cffb5572\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"ec1f74319bb35c1c90c25014ec0f6ea6c3ca2134\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"b657bba82ff6a007d84fd076bd73b11131726a2b\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"4.19.207\",\"lessThan\":\"4.19.314\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"5.4.148\",\"lessThan\":\"5.4.276\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"5.10.67\",\"lessThan\":\"5.10.217\",\"versionType\":\"semver\",\"status\":\"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\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"net/bluetooth/sco.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.15\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.15\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.19.314\",\"lessThanOrEqual\":\"4.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.276\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.217\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.159\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.91\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.31\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.8.10\",\"lessThanOrEqual\":\"6.8.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.9\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":8.0,\"baseSeverity\":\"HIGH\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.1,\"impactScore\":5.9},{\"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}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-06-12T15:29:55.290790Z\",\"id\":\"CVE-2024-27398\",\"options\"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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-08-04T22:47:47+00:00",
      "cve": "CVE-2024-27398",
      "id": "CVE-2024-27398",
      "initial_release_date": "2024-05-13T00:00:00+00:00",
      "product_status:fixed": "538",
      "product_status:known_affected": "112",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Bluetooth: Fix use-after-free bugs caused by sco_sock_timeout",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-27398.json",
      "version": "3"
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Per kernel scoring guidance, Bluetooth-dependent flaws are Adjacent.\\nAC:L - The attacker controls both sides of the race \\u2014 it arms the 2-second disconnect timer via shutdown()/close() and issues the racing close(), and can repeat the connect/close cycle across many sockets until the window is hit. No condition outside the attacker\u0027s influence is required.\\nPR:L - Neither bt_sock_create() nor sco_sock_create() performs any capability check, so any unprivileged local user can create, connect, and close a BTPROTO_SCO socket. No CAP_NET_ADMIN or root is needed.\\nUI:N - The entire sequence is driven by the attacker\u0027s own socket syscalls and the kernel\u0027s delayed workqueue; no victim action is required.\\nS:U - The use-after-free corrupts kernel slab memory within the same kernel security authority; no VM, IOMMU, or sandbox boundary is crossed.\\nC:H - The freed struct sock can be reclaimed and re-sprayed by the attacker, and sco_sock_timeout() then reads sk-\u003esk_state_change and sk_err from attacker-controlled freed memory, giving a path to arbitrary kernel memory disclosure.\\nI:H - sock_hold() performs a 4-byte increment into the freed object and lock_sock()/sk-\u003esk_state_change() write to and indirect-call through freed memory, providing write and control-flow-hijack primitives suitable for privilege escalation.\\nA:H - Even unweaponized, the use-after-free writes into and calls through freed slab memory, reliably producing a KASAN splat, oops, or kernel panic as demonstrated by the reporter\u0027s proof-of-concept.\"}]}], \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"48669c81a65628ef234cbdd91b9395952c7c27fe\", \"lessThan\": \"1b33d55fb7355e27f8c82cd4ecd560f162469249\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"37d7ae2b0578f2373674a755402ee722e96edc08\", \"lessThan\": \"3212afd00e3cda790fd0583cb3eaef8f9575a014\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"a1073aad497d0d071a71f61b721966a176d50c08\", \"lessThan\": \"33a6e92161a78c1073d90e27abe28d746feb0a53\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ba316be1b6a00db7126ed9a39f9bee434a508043\", \"lessThan\": \"6a18eeb1b3bbc67c20d9609c31dca6a69b4bcde5\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ba316be1b6a00db7126ed9a39f9bee434a508043\", \"lessThan\": \"bfab2c1f7940a232cd519e82fff137e308abfd93\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ba316be1b6a00db7126ed9a39f9bee434a508043\", \"lessThan\": \"012363cb1bec5f33a7b94629ab2c1086f30280f2\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ba316be1b6a00db7126ed9a39f9bee434a508043\", \"lessThan\": \"50c2037fc28df870ef29d9728c770c8955d32178\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ba316be1b6a00db7126ed9a39f9bee434a508043\", \"lessThan\": \"483bc08181827fc475643272ffb69c533007e546\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fea63ccd928c01573306983346588b26cffb5572\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ec1f74319bb35c1c90c25014ec0f6ea6c3ca2134\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b657bba82ff6a007d84fd076bd73b11131726a2b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"4.19.207\", \"lessThan\": \"4.19.314\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"5.4.148\", \"lessThan\": \"5.4.276\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"5.10.67\", \"lessThan\": \"5.10.217\", \"versionType\": \"semver\"}, {\"status\": \"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\": \"2026-08-05T11:29:32.448Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-27398\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-05T11:29:32.448Z\", \"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.