fkie_cve-2022-48919
Vulnerability from fkie_nvd
Published
2024-08-22 02:15
Modified
2024-08-27 16:07
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: cifs: fix double free race when mount fails in cifs_get_root() When cifs_get_root() fails during cifs_smb3_do_mount() we call deactivate_locked_super() which eventually will call delayed_free() which will free the context. In this situation we should not proceed to enter the out: section in cifs_smb3_do_mount() and free the same resources a second time. [Thu Feb 10 12:59:06 2022] BUG: KASAN: use-after-free in rcu_cblist_dequeue+0x32/0x60 [Thu Feb 10 12:59:06 2022] Read of size 8 at addr ffff888364f4d110 by task swapper/1/0 [Thu Feb 10 12:59:06 2022] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G OE 5.17.0-rc3+ #4 [Thu Feb 10 12:59:06 2022] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.0 12/17/2019 [Thu Feb 10 12:59:06 2022] Call Trace: [Thu Feb 10 12:59:06 2022] <IRQ> [Thu Feb 10 12:59:06 2022] dump_stack_lvl+0x5d/0x78 [Thu Feb 10 12:59:06 2022] print_address_description.constprop.0+0x24/0x150 [Thu Feb 10 12:59:06 2022] ? rcu_cblist_dequeue+0x32/0x60 [Thu Feb 10 12:59:06 2022] kasan_report.cold+0x7d/0x117 [Thu Feb 10 12:59:06 2022] ? rcu_cblist_dequeue+0x32/0x60 [Thu Feb 10 12:59:06 2022] __asan_load8+0x86/0xa0 [Thu Feb 10 12:59:06 2022] rcu_cblist_dequeue+0x32/0x60 [Thu Feb 10 12:59:06 2022] rcu_core+0x547/0xca0 [Thu Feb 10 12:59:06 2022] ? call_rcu+0x3c0/0x3c0 [Thu Feb 10 12:59:06 2022] ? __this_cpu_preempt_check+0x13/0x20 [Thu Feb 10 12:59:06 2022] ? lock_is_held_type+0xea/0x140 [Thu Feb 10 12:59:06 2022] rcu_core_si+0xe/0x10 [Thu Feb 10 12:59:06 2022] __do_softirq+0x1d4/0x67b [Thu Feb 10 12:59:06 2022] __irq_exit_rcu+0x100/0x150 [Thu Feb 10 12:59:06 2022] irq_exit_rcu+0xe/0x30 [Thu Feb 10 12:59:06 2022] sysvec_hyperv_stimer0+0x9d/0xc0 ... [Thu Feb 10 12:59:07 2022] Freed by task 58179: [Thu Feb 10 12:59:07 2022] kasan_save_stack+0x26/0x50 [Thu Feb 10 12:59:07 2022] kasan_set_track+0x25/0x30 [Thu Feb 10 12:59:07 2022] kasan_set_free_info+0x24/0x40 [Thu Feb 10 12:59:07 2022] ____kasan_slab_free+0x137/0x170 [Thu Feb 10 12:59:07 2022] __kasan_slab_free+0x12/0x20 [Thu Feb 10 12:59:07 2022] slab_free_freelist_hook+0xb3/0x1d0 [Thu Feb 10 12:59:07 2022] kfree+0xcd/0x520 [Thu Feb 10 12:59:07 2022] cifs_smb3_do_mount+0x149/0xbe0 [cifs] [Thu Feb 10 12:59:07 2022] smb3_get_tree+0x1a0/0x2e0 [cifs] [Thu Feb 10 12:59:07 2022] vfs_get_tree+0x52/0x140 [Thu Feb 10 12:59:07 2022] path_mount+0x635/0x10c0 [Thu Feb 10 12:59:07 2022] __x64_sys_mount+0x1bf/0x210 [Thu Feb 10 12:59:07 2022] do_syscall_64+0x5c/0xc0 [Thu Feb 10 12:59:07 2022] entry_SYSCALL_64_after_hwframe+0x44/0xae [Thu Feb 10 12:59:07 2022] Last potentially related work creation: [Thu Feb 10 12:59:07 2022] kasan_save_stack+0x26/0x50 [Thu Feb 10 12:59:07 2022] __kasan_record_aux_stack+0xb6/0xc0 [Thu Feb 10 12:59:07 2022] kasan_record_aux_stack_noalloc+0xb/0x10 [Thu Feb 10 12:59:07 2022] call_rcu+0x76/0x3c0 [Thu Feb 10 12:59:07 2022] cifs_umount+0xce/0xe0 [cifs] [Thu Feb 10 12:59:07 2022] cifs_kill_sb+0xc8/0xe0 [cifs] [Thu Feb 10 12:59:07 2022] deactivate_locked_super+0x5d/0xd0 [Thu Feb 10 12:59:07 2022] cifs_smb3_do_mount+0xab9/0xbe0 [cifs] [Thu Feb 10 12:59:07 2022] smb3_get_tree+0x1a0/0x2e0 [cifs] [Thu Feb 10 12:59:07 2022] vfs_get_tree+0x52/0x140 [Thu Feb 10 12:59:07 2022] path_mount+0x635/0x10c0 [Thu Feb 10 12:59:07 2022] __x64_sys_mount+0x1bf/0x210 [Thu Feb 10 12:59:07 2022] do_syscall_64+0x5c/0xc0 [Thu Feb 10 12:59:07 2022] entry_SYSCALL_64_after_hwframe+0x44/0xae
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/147a0e71ccf96df9fc8c2ac500829d8e423ef02cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2fe0e281f7ad0a62259649764228227dd6b2561dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3d6cc9898efdfb062efb74dc18cfc700e082f5d5Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/546d60859ecf13380fcabcbeace53a5971493a2bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/563431c1f3c8f2230e4a9c445fa23758742bc4f0Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/da834d6c1147c7519a9e55b510a03b7055104749Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/df9db1a2af37f39ad1653c7b9b0d275d72d0bc67Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e208668ef7ba23efcbf76a8200cab8deee501c4dPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *


To clipboard 

{
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncifs: fix double free race when mount fails in cifs_get_root()\n\nWhen cifs_get_root() fails during cifs_smb3_do_mount() we call\ndeactivate_locked_super() which eventually will call delayed_free() which\nwill free the context.\nIn this situation we should not proceed to enter the out: section in\ncifs_smb3_do_mount() and free the same resources a second time.\n\n[Thu Feb 10 12:59:06 2022] BUG: KASAN: use-after-free in rcu_cblist_dequeue+0x32/0x60\n[Thu Feb 10 12:59:06 2022] Read of size 8 at addr ffff888364f4d110 by task swapper/1/0\n\n[Thu Feb 10 12:59:06 2022] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G           OE     5.17.0-rc3+ #4\n[Thu Feb 10 12:59:06 2022] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.0 12/17/2019\n[Thu Feb 10 12:59:06 2022] Call Trace:\n[Thu Feb 10 12:59:06 2022]  \u003cIRQ\u003e\n[Thu Feb 10 12:59:06 2022]  dump_stack_lvl+0x5d/0x78\n[Thu Feb 10 12:59:06 2022]  print_address_description.constprop.0+0x24/0x150\n[Thu Feb 10 12:59:06 2022]  ? rcu_cblist_dequeue+0x32/0x60\n[Thu Feb 10 12:59:06 2022]  kasan_report.cold+0x7d/0x117\n[Thu Feb 10 12:59:06 2022]  ? rcu_cblist_dequeue+0x32/0x60\n[Thu Feb 10 12:59:06 2022]  __asan_load8+0x86/0xa0\n[Thu Feb 10 12:59:06 2022]  rcu_cblist_dequeue+0x32/0x60\n[Thu Feb 10 12:59:06 2022]  rcu_core+0x547/0xca0\n[Thu Feb 10 12:59:06 2022]  ? call_rcu+0x3c0/0x3c0\n[Thu Feb 10 12:59:06 2022]  ? __this_cpu_preempt_check+0x13/0x20\n[Thu Feb 10 12:59:06 2022]  ? lock_is_held_type+0xea/0x140\n[Thu Feb 10 12:59:06 2022]  rcu_core_si+0xe/0x10\n[Thu Feb 10 12:59:06 2022]  __do_softirq+0x1d4/0x67b\n[Thu Feb 10 12:59:06 2022]  __irq_exit_rcu+0x100/0x150\n[Thu Feb 10 12:59:06 2022]  irq_exit_rcu+0xe/0x30\n[Thu Feb 10 12:59:06 2022]  sysvec_hyperv_stimer0+0x9d/0xc0\n...\n[Thu Feb 10 12:59:07 2022] Freed by task 58179:\n[Thu Feb 10 12:59:07 2022]  kasan_save_stack+0x26/0x50\n[Thu Feb 10 12:59:07 2022]  kasan_set_track+0x25/0x30\n[Thu Feb 10 12:59:07 2022]  kasan_set_free_info+0x24/0x40\n[Thu Feb 10 12:59:07 2022]  ____kasan_slab_free+0x137/0x170\n[Thu Feb 10 12:59:07 2022]  __kasan_slab_free+0x12/0x20\n[Thu Feb 10 12:59:07 2022]  slab_free_freelist_hook+0xb3/0x1d0\n[Thu Feb 10 12:59:07 2022]  kfree+0xcd/0x520\n[Thu Feb 10 12:59:07 2022]  cifs_smb3_do_mount+0x149/0xbe0 [cifs]\n[Thu Feb 10 12:59:07 2022]  smb3_get_tree+0x1a0/0x2e0 [cifs]\n[Thu Feb 10 12:59:07 2022]  vfs_get_tree+0x52/0x140\n[Thu Feb 10 12:59:07 2022]  path_mount+0x635/0x10c0\n[Thu Feb 10 12:59:07 2022]  __x64_sys_mount+0x1bf/0x210\n[Thu Feb 10 12:59:07 2022]  do_syscall_64+0x5c/0xc0\n[Thu Feb 10 12:59:07 2022]  entry_SYSCALL_64_after_hwframe+0x44/0xae\n\n[Thu Feb 10 12:59:07 2022] Last potentially related work creation:\n[Thu Feb 10 12:59:07 2022]  kasan_save_stack+0x26/0x50\n[Thu Feb 10 12:59:07 2022]  __kasan_record_aux_stack+0xb6/0xc0\n[Thu Feb 10 12:59:07 2022]  kasan_record_aux_stack_noalloc+0xb/0x10\n[Thu Feb 10 12:59:07 2022]  call_rcu+0x76/0x3c0\n[Thu Feb 10 12:59:07 2022]  cifs_umount+0xce/0xe0 [cifs]\n[Thu Feb 10 12:59:07 2022]  cifs_kill_sb+0xc8/0xe0 [cifs]\n[Thu Feb 10 12:59:07 2022]  deactivate_locked_super+0x5d/0xd0\n[Thu Feb 10 12:59:07 2022]  cifs_smb3_do_mount+0xab9/0xbe0 [cifs]\n[Thu Feb 10 12:59:07 2022]  smb3_get_tree+0x1a0/0x2e0 [cifs]\n[Thu Feb 10 12:59:07 2022]  vfs_get_tree+0x52/0x140\n[Thu Feb 10 12:59:07 2022]  path_mount+0x635/0x10c0\n[Thu Feb 10 12:59:07 2022]  __x64_sys_mount+0x1bf/0x210\n[Thu Feb 10 12:59:07 2022]  do_syscall_64+0x5c/0xc0\n[Thu Feb 10 12:59:07 2022]  entry_SYSCALL_64_after_hwframe+0x44/0xae"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: cifs: corrige doble ejecuci\u00f3n libre cuando falla el montaje en cifs_get_root() Cuando cifs_get_root() falla durante cifs_smb3_do_mount() llamamos a deactivate_locked_super() que eventualmente llamar\u00e1 a delay_free() que liberar\u00e1 el contexto. En esta situaci\u00f3n no debemos proceder a ingresar a la secci\u00f3n out: en cifs_smb3_do_mount() y liberar los mismos recursos por segunda vez. [Jueves 10 de febrero 12:59:06 2022] ERROR: KASAN: use-after-free en rcu_cblist_dequeue+0x32/0x60 [Jueves 10 de febrero 12:59:06 2022] Lectura de tama\u00f1o 8 en la direcci\u00f3n ffff888364f4d110 por task swapper/1/ 0 [jueves 10 de febrero 12:59:06 2022] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G OE 5.17.0-rc3+ #4 [jueves 10 de febrero 12:59:06 2022] Nombre del hardware: Microsoft Corporation M\u00e1quina virtual/M\u00e1quina virtual, BIOS Hyper-V UEFI versi\u00f3n v4.0 17/12/2019 [jueves 10 de febrero 12:59:06 2022] Seguimiento de llamadas: [jueves 10 de febrero 12:59:06 2022]  [jueves 10 de febrero 12:59:06 2022] dump_stack_lvl+0x5d/0x78 [jueves 10 de febrero 12:59:06 2022] print_address_description.constprop.0+0x24/0x150 [jueves 10 de febrero 12:59:06 2022] ? rcu_cblist_dequeue+0x32/0x60 [jueves 10 de febrero 12:59:06 2022] kasan_report.cold+0x7d/0x117 [jueves 10 de febrero 12:59:06 2022] ? rcu_cblist_dequeue+0x32/0x60 [jueves 10 de febrero 12:59:06 2022] __asan_load8+0x86/0xa0 [jueves 10 de febrero 12:59:06 2022] rcu_cblist_dequeue+0x32/0x60 [jueves 10 de febrero 12:59:06 2022] rcu_core+ 0x547/0xca0 [jueves 10 de febrero 12:59:06 2022]? call_rcu+0x3c0/0x3c0 [jueves 10 de febrero 12:59:06 2022]? __this_cpu_preempt_check+0x13/0x20 [jueves 10 de febrero 12:59:06 2022] ? lock_is_held_type+0xea/0x140 [jueves 10 de febrero 12:59:06 2022] rcu_core_si+0xe/0x10 [jueves 10 de febrero 12:59:06 2022] __do_softirq+0x1d4/0x67b [jueves 10 de febrero 12:59:06 2022] salida_rcu+ 0x100/0x150 [jueves 10 de febrero 12:59:06 2022] irq_exit_rcu+0xe/0x30 [jueves 10 de febrero 12:59:06 2022] sysvec_hyperv_stimer0+0x9d/0xc0 ... [jueves 10 de febrero 12:59:07 2022] Liberado por tarea 58179: [jueves 10 de febrero 12:59:07 2022] kasan_save_stack+0x26/0x50 [jueves 10 de febrero 12:59:07 2022] kasan_set_track+0x25/0x30 [jueves 10 de febrero 12:59:07 2022] kasan_set_free_info+0x24 /0x40 [jueves 10 de febrero 12:59:07 2022] ____kasan_slab_free+0x137/0x170 [jueves 10 de febrero 12:59:07 2022] __kasan_slab_free+0x12/0x20 [jueves 10 de febrero 12:59:07 2022] xb3/0x1d0 [Jueves 10 de febrero 12:59:07 2022] kfree+0xcd/0x520 [Jueves 10 de febrero 12:59:07 2022] cifs_smb3_do_mount+0x149/0xbe0 [cifs] [Jueves 10 de febrero 12:59:07 2022] smb3_get_tree+0x1a0/ 0x2e0 [cifs] [jueves 10 de febrero 12:59:07 2022] vfs_get_tree+0x52/0x140 [jueves 10 de febrero 12:59:07 2022] path_mount+0x635/0x10c0 [jueves 10 de febrero 12:59:07 2022] __x64_sys_mount+ 0x1bf /0x210 [jueves 10 de febrero 12:59:07 2022] do_syscall_64+0x5c/0xc0 [jueves 10 de febrero 12:59:07 2022] Entry_SYSCALL_64_after_hwframe+0x44/0xae [jueves 10 de febrero 12:59:07 2022] \u00daltima creaci\u00f3n de trabajo potencialmente relacionado : [jueves 10 de febrero 12:59:07 2022] kasan_save_stack+0x26/0x50 [jueves 10 de febrero 12:59:07 2022] __kasan_record_aux_stack+0xb6/0xc0 [jueves 10 de febrero 12:59:07 2022] kasan_record_aux_stack_noalloc+0 xb/0x10 [ Jueves 10 de febrero 12:59:07 2022] call_rcu+0x76/0x3c0 [Jueves 10 de febrero 12:59:07 2022] cifs_umount+0xce/0xe0 [cifs] [Jueves 10 de febrero 12:59:07 2022] cifs_kill_sb+0xc8/0xe0 [CIFS] [Jue 10 de febrero 12:59:07 2022] Deactivate_Locked_super+0x5d/0xd0 [justo 10 de febrero 12:59:07 2022] CIFS_SMB3_DO_MOUNT+0XAB9/0XBE0 [CIFS] [THU FEB 10 12:59:07 2022] SMB3 +0x1a0/0x2e0 [cifs] [jueves 10 de febrero 12:59:07 2022] vfs_get_tree+0x52/0x140 [jueves 10 de febrero 12:59:07 2022] path_mount+0x635/0x10c0 [jueves 10 de febrero 12:59:07 2022] __x64_sys_mount+0x1bf/0x210 [jueves 10 de febrero 12:59:07 2022] do_syscall_64+0x5c/0xc0 [jueves 10 de febrero 12:59:07 2022] Entry_SYSCALL_64_after_hwframe+0x44/0xae"
    }
  ],
  "id": "CVE-2022-48919",
  "lastModified": "2024-08-27T16:07:32.900",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-08-22T02:15:05.987",
  "references": [
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    },
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      "url": "https://git.kernel.org/stable/c/df9db1a2af37f39ad1653c7b9b0d275d72d0bc67"
    },
    {
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  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-415"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.