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CVE-2022-49059 (GCVE-0-2022-49059)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:54 – Updated: 2026-05-11 18:52
VLAI
Title
nfc: nci: add flush_workqueue to prevent uaf
Summary
In the Linux kernel, the following vulnerability has been resolved: nfc: nci: add flush_workqueue to prevent uaf Our detector found a concurrent use-after-free bug when detaching an NCI device. The main reason for this bug is the unexpected scheduling between the used delayed mechanism (timer and workqueue). The race can be demonstrated below: Thread-1 Thread-2 | nci_dev_up() | nci_open_device() | __nci_request(nci_reset_req) | nci_send_cmd | queue_work(cmd_work) nci_unregister_device() | nci_close_device() | ... del_timer_sync(cmd_timer)[1] | ... | Worker nci_free_device() | nci_cmd_work() kfree(ndev)[3] | mod_timer(cmd_timer)[2] In short, the cleanup routine thought that the cmd_timer has already been detached by [1] but the mod_timer can re-attach the timer [2], even it is already released [3], resulting in UAF. This UAF is easy to trigger, crash trace by POC is like below [ 66.703713] ================================================================== [ 66.703974] BUG: KASAN: use-after-free in enqueue_timer+0x448/0x490 [ 66.703974] Write of size 8 at addr ffff888009fb7058 by task kworker/u4:1/33 [ 66.703974] [ 66.703974] CPU: 1 PID: 33 Comm: kworker/u4:1 Not tainted 5.18.0-rc2 #5 [ 66.703974] Workqueue: nfc2_nci_cmd_wq nci_cmd_work [ 66.703974] Call Trace: [ 66.703974] <TASK> [ 66.703974] dump_stack_lvl+0x57/0x7d [ 66.703974] print_report.cold+0x5e/0x5db [ 66.703974] ? enqueue_timer+0x448/0x490 [ 66.703974] kasan_report+0xbe/0x1c0 [ 66.703974] ? enqueue_timer+0x448/0x490 [ 66.703974] enqueue_timer+0x448/0x490 [ 66.703974] __mod_timer+0x5e6/0xb80 [ 66.703974] ? mark_held_locks+0x9e/0xe0 [ 66.703974] ? try_to_del_timer_sync+0xf0/0xf0 [ 66.703974] ? lockdep_hardirqs_on_prepare+0x17b/0x410 [ 66.703974] ? queue_work_on+0x61/0x80 [ 66.703974] ? lockdep_hardirqs_on+0xbf/0x130 [ 66.703974] process_one_work+0x8bb/0x1510 [ 66.703974] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 66.703974] ? pwq_dec_nr_in_flight+0x230/0x230 [ 66.703974] ? rwlock_bug.part.0+0x90/0x90 [ 66.703974] ? _raw_spin_lock_irq+0x41/0x50 [ 66.703974] worker_thread+0x575/0x1190 [ 66.703974] ? process_one_work+0x1510/0x1510 [ 66.703974] kthread+0x2a0/0x340 [ 66.703974] ? kthread_complete_and_exit+0x20/0x20 [ 66.703974] ret_from_fork+0x22/0x30 [ 66.703974] </TASK> [ 66.703974] [ 66.703974] Allocated by task 267: [ 66.703974] kasan_save_stack+0x1e/0x40 [ 66.703974] __kasan_kmalloc+0x81/0xa0 [ 66.703974] nci_allocate_device+0xd3/0x390 [ 66.703974] nfcmrvl_nci_register_dev+0x183/0x2c0 [ 66.703974] nfcmrvl_nci_uart_open+0xf2/0x1dd [ 66.703974] nci_uart_tty_ioctl+0x2c3/0x4a0 [ 66.703974] tty_ioctl+0x764/0x1310 [ 66.703974] __x64_sys_ioctl+0x122/0x190 [ 66.703974] do_syscall_64+0x3b/0x90 [ 66.703974] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 66.703974] [ 66.703974] Freed by task 406: [ 66.703974] kasan_save_stack+0x1e/0x40 [ 66.703974] kasan_set_track+0x21/0x30 [ 66.703974] kasan_set_free_info+0x20/0x30 [ 66.703974] __kasan_slab_free+0x108/0x170 [ 66.703974] kfree+0xb0/0x330 [ 66.703974] nfcmrvl_nci_unregister_dev+0x90/0xd0 [ 66.703974] nci_uart_tty_close+0xdf/0x180 [ 66.703974] tty_ldisc_kill+0x73/0x110 [ 66.703974] tty_ldisc_hangup+0x281/0x5b0 [ 66.703974] __tty_hangup.part.0+0x431/0x890 [ 66.703974] tty_release+0x3a8/0xc80 [ 66.703974] __fput+0x1f0/0x8c0 [ 66.703974] task_work_run+0xc9/0x170 [ 66.703974] exit_to_user_mode_prepare+0x194/0x1a0 [ 66.703974] syscall_exit_to_user_mode+0x19/0x50 [ 66.703974] do_syscall_64+0x48/0x90 [ 66.703974] entry_SYSCALL_64_after_hwframe+0x44/0x ---truncated---
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-27 17:59 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 6a2968aaf50c7a22fced77a5e24aa636281efca8 , < 7d3232214ca4ea8f7d18df264c3b254aa8089d7f (git)
Affected: 6a2968aaf50c7a22fced77a5e24aa636281efca8 , < 9d243aff5f7e6b04e907c617426bbdf26e996ac8 (git)
Affected: 6a2968aaf50c7a22fced77a5e24aa636281efca8 , < 1a1748d0dd0f0a98535c6baeef671c8722107639 (git)
Affected: 6a2968aaf50c7a22fced77a5e24aa636281efca8 , < 5c63ad2b0a267a524c12c88acb1ba9c2d109a801 (git)
Affected: 6a2968aaf50c7a22fced77a5e24aa636281efca8 , < 67677050cecbe0edfdd81cd508415e9636ba7c65 (git)
Affected: 6a2968aaf50c7a22fced77a5e24aa636281efca8 , < 9ded5ae40f4fe37fcc28f36d76bf45df20be5432 (git)
Affected: 6a2968aaf50c7a22fced77a5e24aa636281efca8 , < edd4600120641e1714e30112e69a548cfb68e067 (git)
Affected: 6a2968aaf50c7a22fced77a5e24aa636281efca8 , < ef27324e2cb7bb24542d6cb2571740eefe6b00dc (git)
guessed Create a notification for this product.
Linux Linux Affected: 3.2
Unaffected: 0 , < 3.2 (semver)
Unaffected: 4.9.311 , ≤ 4.9.* (semver)
Unaffected: 4.14.276 , ≤ 4.14.* (semver)
Unaffected: 4.19.239 , ≤ 4.19.* (semver)
Unaffected: 5.4.190 , ≤ 5.4.* (semver)
Unaffected: 5.10.112 , ≤ 5.10.* (semver)
Unaffected: 5.15.35 , ≤ 5.15.* (semver)
Unaffected: 5.17.4 , ≤ 5.17.* (semver)
Unaffected: 5.18 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: nci: add flush_workqueue to prevent uaf\n\nOur detector found a concurrent use-after-free bug when detaching an\nNCI device. The main reason for this bug is the unexpected scheduling\nbetween the used delayed mechanism (timer and workqueue).\n\nThe race can be demonstrated below:\n\nThread-1                           Thread-2\n                                 | nci_dev_up()\n                                 |   nci_open_device()\n                                 |     __nci_request(nci_reset_req)\n                                 |       nci_send_cmd\n                                 |         queue_work(cmd_work)\nnci_unregister_device()          |\n  nci_close_device()             | ...\n    del_timer_sync(cmd_timer)[1] |\n...                              | Worker\nnci_free_device()                | nci_cmd_work()\n  kfree(ndev)[3]                 |   mod_timer(cmd_timer)[2]\n\nIn short, the cleanup routine thought that the cmd_timer has already\nbeen detached by [1] but the mod_timer can re-attach the timer [2], even\nit is already released [3], resulting in UAF.\n\nThis UAF is easy to trigger, crash trace by POC is like below\n\n[   66.703713] ==================================================================\n[   66.703974] BUG: KASAN: use-after-free in enqueue_timer+0x448/0x490\n[   66.703974] Write of size 8 at addr ffff888009fb7058 by task kworker/u4:1/33\n[   66.703974]\n[   66.703974] CPU: 1 PID: 33 Comm: kworker/u4:1 Not tainted 5.18.0-rc2 #5\n[   66.703974] Workqueue: nfc2_nci_cmd_wq nci_cmd_work\n[   66.703974] Call Trace:\n[   66.703974]  \u003cTASK\u003e\n[   66.703974]  dump_stack_lvl+0x57/0x7d\n[   66.703974]  print_report.cold+0x5e/0x5db\n[   66.703974]  ? enqueue_timer+0x448/0x490\n[   66.703974]  kasan_report+0xbe/0x1c0\n[   66.703974]  ? enqueue_timer+0x448/0x490\n[   66.703974]  enqueue_timer+0x448/0x490\n[   66.703974]  __mod_timer+0x5e6/0xb80\n[   66.703974]  ? mark_held_locks+0x9e/0xe0\n[   66.703974]  ? try_to_del_timer_sync+0xf0/0xf0\n[   66.703974]  ? lockdep_hardirqs_on_prepare+0x17b/0x410\n[   66.703974]  ? queue_work_on+0x61/0x80\n[   66.703974]  ? lockdep_hardirqs_on+0xbf/0x130\n[   66.703974]  process_one_work+0x8bb/0x1510\n[   66.703974]  ? lockdep_hardirqs_on_prepare+0x410/0x410\n[   66.703974]  ? pwq_dec_nr_in_flight+0x230/0x230\n[   66.703974]  ? rwlock_bug.part.0+0x90/0x90\n[   66.703974]  ? _raw_spin_lock_irq+0x41/0x50\n[   66.703974]  worker_thread+0x575/0x1190\n[   66.703974]  ? process_one_work+0x1510/0x1510\n[   66.703974]  kthread+0x2a0/0x340\n[   66.703974]  ? kthread_complete_and_exit+0x20/0x20\n[   66.703974]  ret_from_fork+0x22/0x30\n[   66.703974]  \u003c/TASK\u003e\n[   66.703974]\n[   66.703974] Allocated by task 267:\n[   66.703974]  kasan_save_stack+0x1e/0x40\n[   66.703974]  __kasan_kmalloc+0x81/0xa0\n[   66.703974]  nci_allocate_device+0xd3/0x390\n[   66.703974]  nfcmrvl_nci_register_dev+0x183/0x2c0\n[   66.703974]  nfcmrvl_nci_uart_open+0xf2/0x1dd\n[   66.703974]  nci_uart_tty_ioctl+0x2c3/0x4a0\n[   66.703974]  tty_ioctl+0x764/0x1310\n[   66.703974]  __x64_sys_ioctl+0x122/0x190\n[   66.703974]  do_syscall_64+0x3b/0x90\n[   66.703974]  entry_SYSCALL_64_after_hwframe+0x44/0xae\n[   66.703974]\n[   66.703974] Freed by task 406:\n[   66.703974]  kasan_save_stack+0x1e/0x40\n[   66.703974]  kasan_set_track+0x21/0x30\n[   66.703974]  kasan_set_free_info+0x20/0x30\n[   66.703974]  __kasan_slab_free+0x108/0x170\n[   66.703974]  kfree+0xb0/0x330\n[   66.703974]  nfcmrvl_nci_unregister_dev+0x90/0xd0\n[   66.703974]  nci_uart_tty_close+0xdf/0x180\n[   66.703974]  tty_ldisc_kill+0x73/0x110\n[   66.703974]  tty_ldisc_hangup+0x281/0x5b0\n[   66.703974]  __tty_hangup.part.0+0x431/0x890\n[   66.703974]  tty_release+0x3a8/0xc80\n[   66.703974]  __fput+0x1f0/0x8c0\n[   66.703974]  task_work_run+0xc9/0x170\n[   66.703974]  exit_to_user_mode_prepare+0x194/0x1a0\n[   66.703974]  syscall_exit_to_user_mode+0x19/0x50\n[   66.703974]  do_syscall_64+0x48/0x90\n[   66.703974]  entry_SYSCALL_64_after_hwframe+0x44/0x\n---truncated---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T18:52:13.929Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/7d3232214ca4ea8f7d18df264c3b254aa8089d7f"
        },
        {
          "url": "https://git.kernel.org/stable/c/9d243aff5f7e6b04e907c617426bbdf26e996ac8"
        },
        {
          "url": "https://git.kernel.org/stable/c/1a1748d0dd0f0a98535c6baeef671c8722107639"
        },
        {
          "url": "https://git.kernel.org/stable/c/5c63ad2b0a267a524c12c88acb1ba9c2d109a801"
        },
        {
          "url": "https://git.kernel.org/stable/c/67677050cecbe0edfdd81cd508415e9636ba7c65"
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        },
        {
          "url": "https://git.kernel.org/stable/c/ef27324e2cb7bb24542d6cb2571740eefe6b00dc"
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      ],
      "title": "nfc: nci: add flush_workqueue to prevent uaf",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49059",
    "datePublished": "2025-02-26T01:54:29.819Z",
    "dateReserved": "2025-02-26T01:49:39.243Z",
    "dateUpdated": "2026-05-11T18:52:13.929Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2022-49059",
      "date": "2026-09-17",
      "epss": "0.00298",
      "percentile": "0.22502"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49059\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-02-26T07:00:43.150\",\"lastModified\":\"2026-06-17T05:16:57.833\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnfc: nci: add flush_workqueue to prevent uaf\\n\\nOur detector found a concurrent use-after-free bug when detaching an\\nNCI device. The main reason for this bug is the unexpected scheduling\\nbetween the used delayed mechanism (timer and workqueue).\\n\\nThe race can be demonstrated below:\\n\\nThread-1                           Thread-2\\n                                 | nci_dev_up()\\n                                 |   nci_open_device()\\n                                 |     __nci_request(nci_reset_req)\\n                                 |       nci_send_cmd\\n                                 |         queue_work(cmd_work)\\nnci_unregister_device()          |\\n  nci_close_device()             | ...\\n    del_timer_sync(cmd_timer)[1] |\\n...                              | Worker\\nnci_free_device()                | nci_cmd_work()\\n  kfree(ndev)[3]                 |   mod_timer(cmd_timer)[2]\\n\\nIn short, the cleanup routine thought that the cmd_timer has already\\nbeen detached by [1] but the mod_timer can re-attach the timer [2], even\\nit is already released [3], resulting in UAF.\\n\\nThis UAF is easy to trigger, crash trace by POC is like below\\n\\n[   66.703713] ==================================================================\\n[   66.703974] BUG: KASAN: use-after-free in enqueue_timer+0x448/0x490\\n[   66.703974] Write of size 8 at addr ffff888009fb7058 by task kworker/u4:1/33\\n[   66.703974]\\n[   66.703974] CPU: 1 PID: 33 Comm: kworker/u4:1 Not tainted 5.18.0-rc2 #5\\n[   66.703974] Workqueue: nfc2_nci_cmd_wq nci_cmd_work\\n[   66.703974] Call Trace:\\n[   66.703974]  \u003cTASK\u003e\\n[   66.703974]  dump_stack_lvl+0x57/0x7d\\n[   66.703974]  print_report.cold+0x5e/0x5db\\n[   66.703974]  ? enqueue_timer+0x448/0x490\\n[   66.703974]  kasan_report+0xbe/0x1c0\\n[   66.703974]  ? enqueue_timer+0x448/0x490\\n[   66.703974]  enqueue_timer+0x448/0x490\\n[   66.703974]  __mod_timer+0x5e6/0xb80\\n[   66.703974]  ? mark_held_locks+0x9e/0xe0\\n[   66.703974]  ? try_to_del_timer_sync+0xf0/0xf0\\n[   66.703974]  ? lockdep_hardirqs_on_prepare+0x17b/0x410\\n[   66.703974]  ? queue_work_on+0x61/0x80\\n[   66.703974]  ? lockdep_hardirqs_on+0xbf/0x130\\n[   66.703974]  process_one_work+0x8bb/0x1510\\n[   66.703974]  ? lockdep_hardirqs_on_prepare+0x410/0x410\\n[   66.703974]  ? pwq_dec_nr_in_flight+0x230/0x230\\n[   66.703974]  ? rwlock_bug.part.0+0x90/0x90\\n[   66.703974]  ? _raw_spin_lock_irq+0x41/0x50\\n[   66.703974]  worker_thread+0x575/0x1190\\n[   66.703974]  ? process_one_work+0x1510/0x1510\\n[   66.703974]  kthread+0x2a0/0x340\\n[   66.703974]  ? kthread_complete_and_exit+0x20/0x20\\n[   66.703974]  ret_from_fork+0x22/0x30\\n[   66.703974]  \u003c/TASK\u003e\\n[   66.703974]\\n[   66.703974] Allocated by task 267:\\n[   66.703974]  kasan_save_stack+0x1e/0x40\\n[   66.703974]  __kasan_kmalloc+0x81/0xa0\\n[   66.703974]  nci_allocate_device+0xd3/0x390\\n[   66.703974]  nfcmrvl_nci_register_dev+0x183/0x2c0\\n[   66.703974]  nfcmrvl_nci_uart_open+0xf2/0x1dd\\n[   66.703974]  nci_uart_tty_ioctl+0x2c3/0x4a0\\n[   66.703974]  tty_ioctl+0x764/0x1310\\n[   66.703974]  __x64_sys_ioctl+0x122/0x190\\n[   66.703974]  do_syscall_64+0x3b/0x90\\n[   66.703974]  entry_SYSCALL_64_after_hwframe+0x44/0xae\\n[   66.703974]\\n[   66.703974] Freed by task 406:\\n[   66.703974]  kasan_save_stack+0x1e/0x40\\n[   66.703974]  kasan_set_track+0x21/0x30\\n[   66.703974]  kasan_set_free_info+0x20/0x30\\n[   66.703974]  __kasan_slab_free+0x108/0x170\\n[   66.703974]  kfree+0xb0/0x330\\n[   66.703974]  nfcmrvl_nci_unregister_dev+0x90/0xd0\\n[   66.703974]  nci_uart_tty_close+0xdf/0x180\\n[   66.703974]  tty_ldisc_kill+0x73/0x110\\n[   66.703974]  tty_ldisc_hangup+0x281/0x5b0\\n[   66.703974]  __tty_hangup.part.0+0x431/0x890\\n[   66.703974]  tty_release+0x3a8/0xc80\\n[   66.703974]  __fput+0x1f0/0x8c0\\n[   66.703974]  task_work_run+0xc9/0x170\\n[   66.703974]  exit_to_user_mode_prepare+0x194/0x1a0\\n[   66.703974]  syscall_exit_to_user_mode+0x19/0x50\\n[   66.703974]  do_syscall_64+0x48/0x90\\n[   66.703974]  entry_SYSCALL_64_after_hwframe+0x44/0x\\n---truncated---\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nfc: nci: agregar flush_workqueue para evitar uaf Nuestro detector encontr\u00f3 un error de uso simult\u00e1neo despu\u00e9s de la liberaci\u00f3n al desconectar un dispositivo NCI. La raz\u00f3n principal de este error es la programaci\u00f3n inesperada entre el mecanismo de retraso utilizado (temporizador y cola de trabajo). La ejecuci\u00f3n se puede demostrar a continuaci\u00f3n: Hilo-1 Hilo-2 | nci_dev_up() | nci_open_device() | __nci_request(nci_reset_req) | nci_send_cmd | queue_work(cmd_work) nci_unregister_device() | nci_close_device() | ... del_timer_sync(cmd_timer)[1] | ... | Trabajador nci_free_device() | nci_cmd_work() kfree(ndev)[3] | mod_timer(cmd_timer)[2] En resumen, la rutina de limpieza pens\u00f3 que el cmd_timer ya hab\u00eda sido separado por [1] pero el mod_timer puede volver a unir el temporizador [2], incluso si ya est\u00e1 liberado [3], lo que da como resultado UAF. Este UAF es f\u00e1cil de activar, el seguimiento de fallas por POC es como el siguiente [66.703713] ======================================================================= [66.703974] ERROR: KASAN: use-after-free en enqueue_timer+0x448/0x490 [66.703974] Escritura de tama\u00f1o 8 en la direcci\u00f3n ffff888009fb7058 por la tarea kworker/u4:1/33 [66.703974] [66.703974] CPU: 1 PID: 33 Comm: kworker/u4:1 No contaminado 5.18.0-rc2 #5 [ 66.703974] Cola de trabajo: nfc2_nci_cmd_wq nci_cmd_work [ 66.703974] Rastreo de llamadas: [ 66.703974]  [ 66.703974] dump_stack_lvl+0x57/0x7d [ 66.703974] print_report.cold+0x5e/0x5db [ 66.703974] ? enqueue_timer+0x448/0x490 [ 66.703974] kasan_report+0xbe/0x1c0 [ 66.703974] ? enqueue_timer+0x448/0x490 [ 66.703974] enqueue_timer+0x448/0x490 [ 66.703974] __mod_timer+0x5e6/0xb80 [ 66.703974] ? mark_held_locks+0x9e/0xe0 [ 66.703974] ? try_to_del_timer_sync+0xf0/0xf0 [ 66.703974] ? lockdep_hardirqs_on_prepare+0x17b/0x410 [ 66.703974] ? queue_work_on+0x61/0x80 [ 66.703974] ? lockdep_hardirqs_on+0xbf/0x130 [ 66.703974] process_one_work+0x8bb/0x1510 [ 66.703974] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 66.703974] ? pwq_dec_nr_in_flight+0x230/0x230 [ 66.703974] ? rwlock_bug.part.0+0x90/0x90 [ 66.703974] ? _raw_spin_lock_irq+0x41/0x50 [ 66.703974] worker_thread+0x575/0x1190 [ 66.703974] ? process_one_work+0x1510/0x1510 [ 66.703974] kthread+0x2a0/0x340 [ 66.703974] ? kthread_complete_and_exit+0x20/0x20 [ 66.703974] ret_from_fork+0x22/0x30 [ 66.703974]  [ 66.703974] [ 66.703974] Asignado por la tarea 267: [ 66.703974] kasan_save_stack+0x1e/0x40 [ 66.703974] __kasan_kmalloc+0x81/0xa0 [ 66.703974] nci_allocate_device+0xd3/0x390 [ 66.703974] nfcmrvl_nci_register_dev+0x183/0x2c0 [ 66.703974] Liberado por la tarea 406: [ 66.703974] kasan_save_stack+0x1e/0x40 [ 66.703974] kasan_set_track+0x21/0x30 [ 66.703974] kasan_set_free_info+0x20/0x30 [ 66.703974] __kasan_slab_free+0x108/0x170 [ 66.703974] kfree+0xb0/0x330 [ 66.703974] nfcmrvl_nci_unregister_dev+0x90/0xd0 [ 66.703974] nci_uart_tty_close+0xdf/0x180 [ 66.703974] tty_ldisc_kill+0x73/0x110 [ 66.703974] tty_ldisc_hangup+0x281/0x5b0 [ 66.703974] __tty_hangup.part.0+0x431/0x890 [ 66.703974] tty_release+0x3a8/0xc80 [ 66.703974] __fput+0x1f0/0x8c0 [ 66.703974] task_work_run+0xc9/0x170 [ 66.703974] exit_to_user_mode_prepare+0x194/0x1a0 [ 66.703974] syscall_exit_to_user_mode+0x19/0x50 [ 66.703974] do_syscall_64+0x48/0x90 [ 66.703974] entry_SYSCALL_64_after_hwframe+0x44/0x ---truncado---\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"net/nfc/nci/core.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6a2968aaf50c7a22fced77a5e24aa636281efca8\",\"lessThan\":\"7d3232214ca4ea8f7d18df264c3b254aa8089d7f\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"6a2968aaf50c7a22fced77a5e24aa636281efca8\",\"lessThan\":\"9d243aff5f7e6b04e907c617426bbdf26e996ac8\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"6a2968aaf50c7a22fced77a5e24aa636281efca8\",\"lessThan\":\"1a1748d0dd0f0a98535c6baeef671c8722107639\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"6a2968aaf50c7a22fced77a5e24aa636281efca8\",\"lessThan\":\"5c63ad2b0a267a524c12c88acb1ba9c2d109a801\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"6a2968aaf50c7a22fced77a5e24aa636281efca8\",\"lessThan\":\"67677050cecbe0edfdd81cd508415e9636ba7c65\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"6a2968aaf50c7a22fced77a5e24aa636281efca8\",\"lessThan\":\"9ded5ae40f4fe37fcc28f36d76bf45df20be5432\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"6a2968aaf50c7a22fced77a5e24aa636281efca8\",\"lessThan\":\"edd4600120641e1714e30112e69a548cfb68e067\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"6a2968aaf50c7a22fced77a5e24aa636281efca8\",\"lessThan\":\"ef27324e2cb7bb24542d6cb2571740eefe6b00dc\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"net/nfc/nci/core.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"3.2\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"3.2\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.9.311\",\"lessThanOrEqual\":\"4.9.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.14.276\",\"lessThanOrEqual\":\"4.14.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.19.239\",\"lessThanOrEqual\":\"4.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.190\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.112\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.35\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.17.4\",\"lessThanOrEqual\":\"5.17.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.18\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"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\":\"2025-02-27T17:59:20.702464Z\",\"id\":\"CVE-2022-49059\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"total\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.2\",\"versionEndExcluding\":\"4.9.311\",\"matchCriteriaId\":\"91A60DD7-6C23-4025-B18F-3CE419A63086\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.10\",\"versionEndExcluding\":\"4.14.276\",\"matchCriteriaId\":\"6D9B028C-6313-47F9-94B7-5F8122345E49\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.15\",\"versionEndExcluding\":\"4.19.239\",\"matchCriteriaId\":\"712D9B45-4B53-4563-94B5-F758AFBBFB0D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.190\",\"matchCriteriaId\":\"E0ADBA6D-47D8-4518-8D10-9B9196DE680B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.112\",\"matchCriteriaId\":\"0460A5D2-3024-497A-B799-23E025B91972\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.35\",\"matchCriteriaId\":\"05ABCC3F-88A9-47F9-9D40-8665747B2E43\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"5.17.4\",\"matchCriteriaId\":\"E22C86CB-06CD-4D16-AB2A-F21EE8199262\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.18:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"6AD94161-84BB-42E6-9882-4FC0C42E9FC1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.18:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"7AB06DDF-3C2B-416D-B448-E990D8FF67A9\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1a1748d0dd0f0a98535c6baeef671c8722107639\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5c63ad2b0a267a524c12c88acb1ba9c2d109a801\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/67677050cecbe0edfdd81cd508415e9636ba7c65\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/7d3232214ca4ea8f7d18df264c3b254aa8089d7f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/9d243aff5f7e6b04e907c617426bbdf26e996ac8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/9ded5ae40f4fe37fcc28f36d76bf45df20be5432\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/edd4600120641e1714e30112e69a548cfb68e067\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ef27324e2cb7bb24542d6cb2571740eefe6b00dc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-06-29T20:17:30+00:00",
      "cve": "CVE-2022-49059",
      "id": "CVE-2022-49059",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: nfc: nci: add flush_workqueue to prevent uaf",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-49059.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-11T16:55:46Z",
      "cve": "CVE-2022-49059",
      "id": "CVE-2022-49059",
      "initial_release_date": "2025-02-27T03:12:55Z",
      "product_status:known_affected": "489",
      "product_status:known_not_affected": "186",
      "product_status:recommended": "333",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-49059",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-49059.json",
      "version": "59"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.8, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-49059\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-02-27T17:59:20.702464Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-416\", \"description\": \"CWE-416 Use After Free\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-02-27T17:59:22.002Z\"}}], \"cna\": {\"title\": \"nfc: nci: add flush_workqueue to prevent uaf\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6a2968aaf50c7a22fced77a5e24aa636281efca8\", \"lessThan\": \"7d3232214ca4ea8f7d18df264c3b254aa8089d7f\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"6a2968aaf50c7a22fced77a5e24aa636281efca8\", \"lessThan\": \"9d243aff5f7e6b04e907c617426bbdf26e996ac8\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"6a2968aaf50c7a22fced77a5e24aa636281efca8\", \"lessThan\": \"1a1748d0dd0f0a98535c6baeef671c8722107639\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"6a2968aaf50c7a22fced77a5e24aa636281efca8\", \"lessThan\": \"5c63ad2b0a267a524c12c88acb1ba9c2d109a801\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"6a2968aaf50c7a22fced77a5e24aa636281efca8\", \"lessThan\": \"67677050cecbe0edfdd81cd508415e9636ba7c65\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"6a2968aaf50c7a22fced77a5e24aa636281efca8\", \"lessThan\": \"9ded5ae40f4fe37fcc28f36d76bf45df20be5432\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"6a2968aaf50c7a22fced77a5e24aa636281efca8\", \"lessThan\": \"edd4600120641e1714e30112e69a548cfb68e067\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"6a2968aaf50c7a22fced77a5e24aa636281efca8\", \"lessThan\": \"ef27324e2cb7bb24542d6cb2571740eefe6b00dc\", \"versionType\": \"git\"}], \"programFiles\": [\"net/nfc/nci/core.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.2\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"3.2\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.9.311\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.9.*\"}, {\"status\": \"unaffected\", \"version\": \"4.14.276\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.14.*\"}, {\"status\": \"unaffected\", \"version\": \"4.19.239\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.190\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.112\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.35\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"5.17.4\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.17.*\"}, {\"status\": \"unaffected\", \"version\": \"5.18\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/nfc/nci/core.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/7d3232214ca4ea8f7d18df264c3b254aa8089d7f\"}, {\"url\": \"https://git.kernel.org/stable/c/9d243aff5f7e6b04e907c617426bbdf26e996ac8\"}, {\"url\": \"https://git.kernel.org/stable/c/1a1748d0dd0f0a98535c6baeef671c8722107639\"}, {\"url\": \"https://git.kernel.org/stable/c/5c63ad2b0a267a524c12c88acb1ba9c2d109a801\"}, {\"url\": \"https://git.kernel.org/stable/c/67677050cecbe0edfdd81cd508415e9636ba7c65\"}, {\"url\": \"https://git.kernel.org/stable/c/9ded5ae40f4fe37fcc28f36d76bf45df20be5432\"}, {\"url\": \"https://git.kernel.org/stable/c/edd4600120641e1714e30112e69a548cfb68e067\"}, {\"url\": \"https://git.kernel.org/stable/c/ef27324e2cb7bb24542d6cb2571740eefe6b00dc\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnfc: nci: add flush_workqueue to prevent uaf\\n\\nOur detector found a concurrent use-after-free bug when detaching an\\nNCI device. The main reason for this bug is the unexpected scheduling\\nbetween the used delayed mechanism (timer and workqueue).\\n\\nThe race can be demonstrated below:\\n\\nThread-1                           Thread-2\\n                                 | nci_dev_up()\\n                                 |   nci_open_device()\\n                                 |     __nci_request(nci_reset_req)\\n                                 |       nci_send_cmd\\n                                 |         queue_work(cmd_work)\\nnci_unregister_device()          |\\n  nci_close_device()             | ...\\n    del_timer_sync(cmd_timer)[1] |\\n...                              | Worker\\nnci_free_device()                | nci_cmd_work()\\n  kfree(ndev)[3]                 |   mod_timer(cmd_timer)[2]\\n\\nIn short, the cleanup routine thought that the cmd_timer has already\\nbeen detached by [1] but the mod_timer can re-attach the timer [2], even\\nit is already released [3], resulting in UAF.\\n\\nThis UAF is easy to trigger, crash trace by POC is like below\\n\\n[   66.703713] ==================================================================\\n[   66.703974] BUG: KASAN: use-after-free in enqueue_timer+0x448/0x490\\n[   66.703974] Write of size 8 at addr ffff888009fb7058 by task kworker/u4:1/33\\n[   66.703974]\\n[   66.703974] CPU: 1 PID: 33 Comm: kworker/u4:1 Not tainted 5.18.0-rc2 #5\\n[   66.703974] Workqueue: nfc2_nci_cmd_wq nci_cmd_work\\n[   66.703974] Call Trace:\\n[   66.703974]  \u003cTASK\u003e\\n[   66.703974]  dump_stack_lvl+0x57/0x7d\\n[   66.703974]  print_report.cold+0x5e/0x5db\\n[   66.703974]  ? enqueue_timer+0x448/0x490\\n[   66.703974]  kasan_report+0xbe/0x1c0\\n[   66.703974]  ? enqueue_timer+0x448/0x490\\n[   66.703974]  enqueue_timer+0x448/0x490\\n[   66.703974]  __mod_timer+0x5e6/0xb80\\n[   66.703974]  ? mark_held_locks+0x9e/0xe0\\n[   66.703974]  ? try_to_del_timer_sync+0xf0/0xf0\\n[   66.703974]  ? lockdep_hardirqs_on_prepare+0x17b/0x410\\n[   66.703974]  ? queue_work_on+0x61/0x80\\n[   66.703974]  ? lockdep_hardirqs_on+0xbf/0x130\\n[   66.703974]  process_one_work+0x8bb/0x1510\\n[   66.703974]  ? lockdep_hardirqs_on_prepare+0x410/0x410\\n[   66.703974]  ? pwq_dec_nr_in_flight+0x230/0x230\\n[   66.703974]  ? rwlock_bug.part.0+0x90/0x90\\n[   66.703974]  ? _raw_spin_lock_irq+0x41/0x50\\n[   66.703974]  worker_thread+0x575/0x1190\\n[   66.703974]  ? process_one_work+0x1510/0x1510\\n[   66.703974]  kthread+0x2a0/0x340\\n[   66.703974]  ? kthread_complete_and_exit+0x20/0x20\\n[   66.703974]  ret_from_fork+0x22/0x30\\n[   66.703974]  \u003c/TASK\u003e\\n[   66.703974]\\n[   66.703974] Allocated by task 267:\\n[   66.703974]  kasan_save_stack+0x1e/0x40\\n[   66.703974]  __kasan_kmalloc+0x81/0xa0\\n[   66.703974]  nci_allocate_device+0xd3/0x390\\n[   66.703974]  nfcmrvl_nci_register_dev+0x183/0x2c0\\n[   66.703974]  nfcmrvl_nci_uart_open+0xf2/0x1dd\\n[   66.703974]  nci_uart_tty_ioctl+0x2c3/0x4a0\\n[   66.703974]  tty_ioctl+0x764/0x1310\\n[   66.703974]  __x64_sys_ioctl+0x122/0x190\\n[   66.703974]  do_syscall_64+0x3b/0x90\\n[   66.703974]  entry_SYSCALL_64_after_hwframe+0x44/0xae\\n[   66.703974]\\n[   66.703974] Freed by task 406:\\n[   66.703974]  kasan_save_stack+0x1e/0x40\\n[   66.703974]  kasan_set_track+0x21/0x30\\n[   66.703974]  kasan_set_free_info+0x20/0x30\\n[   66.703974]  __kasan_slab_free+0x108/0x170\\n[   66.703974]  kfree+0xb0/0x330\\n[   66.703974]  nfcmrvl_nci_unregister_dev+0x90/0xd0\\n[   66.703974]  nci_uart_tty_close+0xdf/0x180\\n[   66.703974]  tty_ldisc_kill+0x73/0x110\\n[   66.703974]  tty_ldisc_hangup+0x281/0x5b0\\n[   66.703974]  __tty_hangup.part.0+0x431/0x890\\n[   66.703974]  tty_release+0x3a8/0xc80\\n[   66.703974]  __fput+0x1f0/0x8c0\\n[   66.703974]  task_work_run+0xc9/0x170\\n[   66.703974]  exit_to_user_mode_prepare+0x194/0x1a0\\n[   66.703974]  syscall_exit_to_user_mode+0x19/0x50\\n[   66.703974]  do_syscall_64+0x48/0x90\\n[   66.703974]  entry_SYSCALL_64_after_hwframe+0x44/0x\\n---truncated---\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.9.311\", \"versionStartIncluding\": \"3.2\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.14.276\", \"versionStartIncluding\": \"3.2\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.239\", \"versionStartIncluding\": \"3.2\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.190\", \"versionStartIncluding\": \"3.2\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.112\", \"versionStartIncluding\": \"3.2\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.35\", \"versionStartIncluding\": \"3.2\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.17.4\", \"versionStartIncluding\": \"3.2\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.18\", \"versionStartIncluding\": \"3.2\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T08:28:51.756Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-49059\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T08:28:51.756Z\", \"dateReserved\": \"2025-02-26T01:49:39.243Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-02-26T01:54:29.819Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.