cve-2023-52751
Vulnerability from cvelistv5
Published
2024-05-21 15:30
Modified
2024-09-11 17:33
Severity
Summary
smb: client: fix use-after-free in smb2_query_info_compound()
References
SourceURLTags
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5c86919455c1edec99ebd3338ad213b59271a71b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6db94d08359c43f2c8fe372811cdee04564a41b9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/93877b9afc2994c89362007aac480a7b150f386f
Impacted products
VendorProduct
LinuxLinux
LinuxLinux
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{
  "containers": {
    "adp": [
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        "providerMetadata": {
          "dateUpdated": "2024-08-02T23:11:36.015Z",
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            "url": "https://git.kernel.org/stable/c/6db94d08359c43f2c8fe372811cdee04564a41b9"
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            "url": "https://git.kernel.org/stable/c/93877b9afc2994c89362007aac480a7b150f386f"
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            "url": "https://git.kernel.org/stable/c/5c86919455c1edec99ebd3338ad213b59271a71b"
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        "title": "CVE Program Container"
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        "metrics": [
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              "content": {
                "id": "CVE-2023-52751",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
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                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T15:37:15.794672Z",
                "version": "2.0.3"
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        "providerMetadata": {
          "dateUpdated": "2024-09-11T17:33:32.822Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/client/cached_dir.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6db94d08359c",
              "status": "affected",
              "version": "1da177e4c3f4",
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        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/client/cached_dir.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "6.5.*",
              "status": "unaffected",
              "version": "6.5.13",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.3",
              "versionType": "custom"
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            {
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              "status": "unaffected",
              "version": "6.7",
              "versionType": "original_commit_for_fix"
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          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix use-after-free in smb2_query_info_compound()\n\nThe following UAF was triggered when running fstests generic/072 with\nKASAN enabled against Windows Server 2022 and mount options\n\u0027multichannel,max_channels=2,vers=3.1.1,mfsymlinks,noperm\u0027\n\n  BUG: KASAN: slab-use-after-free in smb2_query_info_compound+0x423/0x6d0 [cifs]\n  Read of size 8 at addr ffff888014941048 by task xfs_io/27534\n\n  CPU: 0 PID: 27534 Comm: xfs_io Not tainted 6.6.0-rc7 #1\n  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS\n  rel-1.16.2-3-gd478f380-rebuilt.opensuse.org 04/01/2014\n  Call Trace:\n   dump_stack_lvl+0x4a/0x80\n   print_report+0xcf/0x650\n   ? srso_alias_return_thunk+0x5/0x7f\n   ? srso_alias_return_thunk+0x5/0x7f\n   ? __phys_addr+0x46/0x90\n   kasan_report+0xda/0x110\n   ? smb2_query_info_compound+0x423/0x6d0 [cifs]\n   ? smb2_query_info_compound+0x423/0x6d0 [cifs]\n   smb2_query_info_compound+0x423/0x6d0 [cifs]\n   ? __pfx_smb2_query_info_compound+0x10/0x10 [cifs]\n   ? srso_alias_return_thunk+0x5/0x7f\n   ? __stack_depot_save+0x39/0x480\n   ? kasan_save_stack+0x33/0x60\n   ? kasan_set_track+0x25/0x30\n   ? ____kasan_slab_free+0x126/0x170\n   smb2_queryfs+0xc2/0x2c0 [cifs]\n   ? __pfx_smb2_queryfs+0x10/0x10 [cifs]\n   ? __pfx___lock_acquire+0x10/0x10\n   smb311_queryfs+0x210/0x220 [cifs]\n   ? __pfx_smb311_queryfs+0x10/0x10 [cifs]\n   ? srso_alias_return_thunk+0x5/0x7f\n   ? __lock_acquire+0x480/0x26c0\n   ? lock_release+0x1ed/0x640\n   ? srso_alias_return_thunk+0x5/0x7f\n   ? do_raw_spin_unlock+0x9b/0x100\n   cifs_statfs+0x18c/0x4b0 [cifs]\n   statfs_by_dentry+0x9b/0xf0\n   fd_statfs+0x4e/0xb0\n   __do_sys_fstatfs+0x7f/0xe0\n   ? __pfx___do_sys_fstatfs+0x10/0x10\n   ? srso_alias_return_thunk+0x5/0x7f\n   ? lockdep_hardirqs_on_prepare+0x136/0x200\n   ? srso_alias_return_thunk+0x5/0x7f\n   do_syscall_64+0x3f/0x90\n   entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n\n  Allocated by task 27534:\n   kasan_save_stack+0x33/0x60\n   kasan_set_track+0x25/0x30\n   __kasan_kmalloc+0x8f/0xa0\n   open_cached_dir+0x71b/0x1240 [cifs]\n   smb2_query_info_compound+0x5c3/0x6d0 [cifs]\n   smb2_queryfs+0xc2/0x2c0 [cifs]\n   smb311_queryfs+0x210/0x220 [cifs]\n   cifs_statfs+0x18c/0x4b0 [cifs]\n   statfs_by_dentry+0x9b/0xf0\n   fd_statfs+0x4e/0xb0\n   __do_sys_fstatfs+0x7f/0xe0\n   do_syscall_64+0x3f/0x90\n   entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n\n  Freed by task 27534:\n   kasan_save_stack+0x33/0x60\n   kasan_set_track+0x25/0x30\n   kasan_save_free_info+0x2b/0x50\n   ____kasan_slab_free+0x126/0x170\n   slab_free_freelist_hook+0xd0/0x1e0\n   __kmem_cache_free+0x9d/0x1b0\n   open_cached_dir+0xff5/0x1240 [cifs]\n   smb2_query_info_compound+0x5c3/0x6d0 [cifs]\n   smb2_queryfs+0xc2/0x2c0 [cifs]\n\nThis is a race between open_cached_dir() and cached_dir_lease_break()\nwhere the cache entry for the open directory handle receives a lease\nbreak while creating it.  And before returning from open_cached_dir(),\nwe put the last reference of the new @cfid because of\n!@cfid-\u003ehas_lease.\n\nBesides the UAF, while running xfstests a lot of missed lease breaks\nhave been noticed in tests that run several concurrent statfs(2) calls\non those cached fids\n\n  CIFS: VFS: \\\\w22-root1.gandalf.test No task to wake, unknown frame...\n  CIFS: VFS: \\\\w22-root1.gandalf.test Cmd: 18 Err: 0x0 Flags: 0x1...\n  CIFS: VFS: \\\\w22-root1.gandalf.test smb buf 00000000715bfe83 len 108\n  CIFS: VFS: Dump pending requests:\n  CIFS: VFS: \\\\w22-root1.gandalf.test No task to wake, unknown frame...\n  CIFS: VFS: \\\\w22-root1.gandalf.test Cmd: 18 Err: 0x0 Flags: 0x1...\n  CIFS: VFS: \\\\w22-root1.gandalf.test smb buf 000000005aa7316e len 108\n  ...\n\nTo fix both, in open_cached_dir() ensure that @cfid-\u003ehas_lease is set\nright before sending out compounded request so that any potential\nlease break will be get processed by demultiplex thread while we\u0027re\nstill caching @cfid.  And, if open failed for some reason, re-check\n@cfid-\u003ehas_lease to decide whether or not put lease reference."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-05-29T05:16:40.365Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/6db94d08359c43f2c8fe372811cdee04564a41b9"
        },
        {
          "url": "https://git.kernel.org/stable/c/93877b9afc2994c89362007aac480a7b150f386f"
        },
        {
          "url": "https://git.kernel.org/stable/c/5c86919455c1edec99ebd3338ad213b59271a71b"
        }
      ],
      "title": "smb: client: fix use-after-free in smb2_query_info_compound()",
      "x_generator": {
        "engine": "bippy-a5840b7849dd"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-52751",
    "datePublished": "2024-05-21T15:30:40.226Z",
    "dateReserved": "2024-05-21T15:19:24.234Z",
    "dateUpdated": "2024-09-11T17:33:32.822Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-52751\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-21T16:15:14.763\",\"lastModified\":\"2024-05-21T16:53:56.550\",\"vulnStatus\":\"Awaiting Analysis\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nsmb: client: fix use-after-free in smb2_query_info_compound()\\n\\nThe following UAF was triggered when running fstests generic/072 with\\nKASAN enabled against Windows Server 2022 and mount options\\n\u0027multichannel,max_channels=2,vers=3.1.1,mfsymlinks,noperm\u0027\\n\\n  BUG: KASAN: slab-use-after-free in smb2_query_info_compound+0x423/0x6d0 [cifs]\\n  Read of size 8 at addr ffff888014941048 by task xfs_io/27534\\n\\n  CPU: 0 PID: 27534 Comm: xfs_io Not tainted 6.6.0-rc7 #1\\n  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS\\n  rel-1.16.2-3-gd478f380-rebuilt.opensuse.org 04/01/2014\\n  Call Trace:\\n   dump_stack_lvl+0x4a/0x80\\n   print_report+0xcf/0x650\\n   ? srso_alias_return_thunk+0x5/0x7f\\n   ? srso_alias_return_thunk+0x5/0x7f\\n   ? __phys_addr+0x46/0x90\\n   kasan_report+0xda/0x110\\n   ? smb2_query_info_compound+0x423/0x6d0 [cifs]\\n   ? smb2_query_info_compound+0x423/0x6d0 [cifs]\\n   smb2_query_info_compound+0x423/0x6d0 [cifs]\\n   ? __pfx_smb2_query_info_compound+0x10/0x10 [cifs]\\n   ? srso_alias_return_thunk+0x5/0x7f\\n   ? __stack_depot_save+0x39/0x480\\n   ? kasan_save_stack+0x33/0x60\\n   ? kasan_set_track+0x25/0x30\\n   ? ____kasan_slab_free+0x126/0x170\\n   smb2_queryfs+0xc2/0x2c0 [cifs]\\n   ? __pfx_smb2_queryfs+0x10/0x10 [cifs]\\n   ? __pfx___lock_acquire+0x10/0x10\\n   smb311_queryfs+0x210/0x220 [cifs]\\n   ? __pfx_smb311_queryfs+0x10/0x10 [cifs]\\n   ? srso_alias_return_thunk+0x5/0x7f\\n   ? __lock_acquire+0x480/0x26c0\\n   ? lock_release+0x1ed/0x640\\n   ? srso_alias_return_thunk+0x5/0x7f\\n   ? do_raw_spin_unlock+0x9b/0x100\\n   cifs_statfs+0x18c/0x4b0 [cifs]\\n   statfs_by_dentry+0x9b/0xf0\\n   fd_statfs+0x4e/0xb0\\n   __do_sys_fstatfs+0x7f/0xe0\\n   ? __pfx___do_sys_fstatfs+0x10/0x10\\n   ? srso_alias_return_thunk+0x5/0x7f\\n   ? lockdep_hardirqs_on_prepare+0x136/0x200\\n   ? srso_alias_return_thunk+0x5/0x7f\\n   do_syscall_64+0x3f/0x90\\n   entry_SYSCALL_64_after_hwframe+0x6e/0xd8\\n\\n  Allocated by task 27534:\\n   kasan_save_stack+0x33/0x60\\n   kasan_set_track+0x25/0x30\\n   __kasan_kmalloc+0x8f/0xa0\\n   open_cached_dir+0x71b/0x1240 [cifs]\\n   smb2_query_info_compound+0x5c3/0x6d0 [cifs]\\n   smb2_queryfs+0xc2/0x2c0 [cifs]\\n   smb311_queryfs+0x210/0x220 [cifs]\\n   cifs_statfs+0x18c/0x4b0 [cifs]\\n   statfs_by_dentry+0x9b/0xf0\\n   fd_statfs+0x4e/0xb0\\n   __do_sys_fstatfs+0x7f/0xe0\\n   do_syscall_64+0x3f/0x90\\n   entry_SYSCALL_64_after_hwframe+0x6e/0xd8\\n\\n  Freed by task 27534:\\n   kasan_save_stack+0x33/0x60\\n   kasan_set_track+0x25/0x30\\n   kasan_save_free_info+0x2b/0x50\\n   ____kasan_slab_free+0x126/0x170\\n   slab_free_freelist_hook+0xd0/0x1e0\\n   __kmem_cache_free+0x9d/0x1b0\\n   open_cached_dir+0xff5/0x1240 [cifs]\\n   smb2_query_info_compound+0x5c3/0x6d0 [cifs]\\n   smb2_queryfs+0xc2/0x2c0 [cifs]\\n\\nThis is a race between open_cached_dir() and cached_dir_lease_break()\\nwhere the cache entry for the open directory handle receives a lease\\nbreak while creating it.  And before returning from open_cached_dir(),\\nwe put the last reference of the new @cfid because of\\n!@cfid-\u003ehas_lease.\\n\\nBesides the UAF, while running xfstests a lot of missed lease breaks\\nhave been noticed in tests that run several concurrent statfs(2) calls\\non those cached fids\\n\\n  CIFS: VFS: \\\\\\\\w22-root1.gandalf.test No task to wake, unknown frame...\\n  CIFS: VFS: \\\\\\\\w22-root1.gandalf.test Cmd: 18 Err: 0x0 Flags: 0x1...\\n  CIFS: VFS: \\\\\\\\w22-root1.gandalf.test smb buf 00000000715bfe83 len 108\\n  CIFS: VFS: Dump pending requests:\\n  CIFS: VFS: \\\\\\\\w22-root1.gandalf.test No task to wake, unknown frame...\\n  CIFS: VFS: \\\\\\\\w22-root1.gandalf.test Cmd: 18 Err: 0x0 Flags: 0x1...\\n  CIFS: VFS: \\\\\\\\w22-root1.gandalf.test smb buf 000000005aa7316e len 108\\n  ...\\n\\nTo fix both, in open_cached_dir() ensure that @cfid-\u003ehas_lease is set\\nright before sending out compounded request so that any potential\\nlease break will be get processed by demultiplex thread while we\u0027re\\nstill caching @cfid.  And, if open failed for some reason, re-check\\n@cfid-\u003ehas_lease to decide whether or not put lease reference.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: smb: client: corrige use-after-free en smb2_query_info_compound(). El siguiente UAF se activ\u00f3 al ejecutar fstests generic/072 con KASAN habilitado en Windows Server 2022 y opciones de montaje \u0027multicanal, max_channels=2,vers=3.1.1,mfsymlinks,noperm\u0027 BUG: KASAN: slab-use-after-free en smb2_query_info_compound+0x423/0x6d0 [cifs] Lectura de tama\u00f1o 8 en la direcci\u00f3n ffff888014941048 por tarea xfs_io/27534 CPU: 0 PID : 27534 Comm: xfs_io Not tainted 6.6.0-rc7 #1 Nombre del hardware: PC est\u00e1ndar QEMU (Q35 + ICH9, 2009), BIOS rel-1.16.2-3-gd478f380-rebuilt.opensuse.org 01/04/2014 Llamada Seguimiento: dump_stack_lvl+0x4a/0x80 print_report+0xcf/0x650 ? srso_alias_return_thunk+0x5/0x7f? srso_alias_return_thunk+0x5/0x7f? __phys_addr+0x46/0x90 kasan_report+0xda/0x110 ? smb2_query_info_compound+0x423/0x6d0 [cifs]? smb2_query_info_compound+0x423/0x6d0 [cifs] smb2_query_info_compound+0x423/0x6d0 [cifs] ? __pfx_smb2_query_info_compound+0x10/0x10 [cifs] ? srso_alias_return_thunk+0x5/0x7f? __stack_depot_save+0x39/0x480? kasan_save_stack+0x33/0x60? kasan_set_track+0x25/0x30? ____kasan_slab_free+0x126/0x170 smb2_queryfs+0xc2/0x2c0 [cifs] ? __pfx_smb2_queryfs+0x10/0x10 [cifs] ? __pfx___lock_acquire+0x10/0x10 smb311_queryfs+0x210/0x220 [cifs]? __pfx_smb311_queryfs+0x10/0x10 [cifs] ? srso_alias_return_thunk+0x5/0x7f? __lock_acquire+0x480/0x26c0? lock_release+0x1ed/0x640? srso_alias_return_thunk+0x5/0x7f? do_raw_spin_unlock+0x9b/0x100 cifs_statfs+0x18c/0x4b0 [cifs] statfs_by_dentry+0x9b/0xf0 fd_statfs+0x4e/0xb0 __do_sys_fstatfs+0x7f/0xe0 ? __pfx___do_sys_fstatfs+0x10/0x10 ? srso_alias_return_thunk+0x5/0x7f? lockdep_hardirqs_on_prepare+0x136/0x200? srso_alias_return_thunk+0x5/0x7f do_syscall_64+0x3f/0x90 Entry_SYSCALL_64_after_hwframe+0x6e/0xd8 Asignado por tarea 27534: kasan_save_stack+0x33/0x60 kasan_set_track+0x25/0x30 __kasan_kmalloc+0x8f /0xa0 open_cached_dir+0x71b/0x1240 [cifs] smb2_query_info_compound+0x5c3/0x6d0 [cifs ] smb2_queryfs+0xc2/0x2c0 [cifs] smb311_queryfs+0x210/0x220 [cifs] cifs_statfs+0x18c/0x4b0 [cifs] statfs_by_dentry+0x9b/0xf0 fd_statfs+0x4e/0xb0 statfs+0x7f/0xe0 do_syscall_64+0x3f/0x90 entrada_SYSCALL_64_after_hwframe+0x6e/0xd8 Liberado por la tarea 27534: kasan_save_stack+0x33/0x60 kasan_set_track+0x25/0x30 kasan_save_free_info+0x2b/0x50 ____kasan_slab_free+0x126/0x170 slab_free_freelist_hook+0xd0/0x1e0 __kmem_cache_free+0x9d/0x 1b0 open_cached_dir+0xff5/0x1240 [cifs] smb2_query_info_compound+0x5c3/0x6d0 [cifs ] smb2_queryfs+0xc2/0x2c0 [cifs] Esta es una ejecuci\u00f3n entre open_cached_dir() y cached_dir_lease_break() donde la entrada de cach\u00e9 para el identificador de directorio abierto recibe una interrupci\u00f3n de arrendamiento mientras se crea. Y antes de volver de open_cached_dir(), ponemos la \u00faltima referencia del nuevo @cfid por !@cfid-\u0026gt;has_lease. Adem\u00e1s de UAF, al ejecutar xfstests se han observado muchas interrupciones de arrendamiento perdidas en pruebas que ejecutan varias llamadas statfs(2) simult\u00e1neas en esos fids almacenados en cach\u00e9 CIFS: VFS: \\\\\\\\w22-root1.gandalf.test No hay tarea para activar, desconocida marco... CIFS: VFS: \\\\\\\\w22-root1.gandalf.test Cmd: 18 Err: 0x0 Banderas: 0x1... CIFS: VFS: \\\\\\\\w22-root1.gandalf.test smb buf 00000000715bfe83 len 108 CIFS: VFS : Volcado de solicitudes pendientes: CIFS: VFS: \\\\\\\\w22-root1.gandalf.test No hay tarea para activar, marco desconocido... CIFS: VFS: \\\\\\\\w22-root1.gandalf.test Cmd: 18 Err: 0x0 Banderas: 0x1 ... CIFS: VFS: \\\\\\\\w22-root1.gandalf.test smb buf 000000005aa7316e len 108 ... Para arreglar ambos, en open_cached_dir() aseg\u00farese de que @cfid-\u0026gt;has_lease est\u00e9 configurado justo antes de enviar una solicitud compuesta para que cualquier La posible interrupci\u00f3n del arrendamiento ser\u00e1 procesada por el subproceso demultiplex mientras todav\u00eda estamos almacenando en cach\u00e9 @cfid. Y, si la apertura falla por alg\u00fan motivo, vuelva a verificar @cfid-\u0026gt;has_lease para decidir si coloca o no la referencia del arrendamiento.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/5c86919455c1edec99ebd3338ad213b59271a71b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6db94d08359c43f2c8fe372811cdee04564a41b9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/93877b9afc2994c89362007aac480a7b150f386f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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