cve-2021-47589
Vulnerability from cvelistv5
Published
2024-06-19 14:53
Modified
2024-11-04 12:08
Severity ?
Summary
igbvf: fix double free in `igbvf_probe`
Impacted products
Vendor Product Version
Linux Linux Version: 2.6.30
Show details on NVD website


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                "id": "CVE-2021-47589",
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                "role": "CISA Coordinator",
                "timestamp": "2024-06-20T17:58:29.700241Z",
                "version": "2.0.3"
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          "product": "Linux",
          "programFiles": [
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "4.9.294",
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              "version": "5.10.88",
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              "version": "5.15.11",
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              "version": "5.16",
              "versionType": "original_commit_for_fix"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nigbvf: fix double free in `igbvf_probe`\n\nIn `igbvf_probe`, if register_netdev() fails, the program will go to\nlabel err_hw_init, and then to label err_ioremap. In free_netdev() which\nis just below label err_ioremap, there is `list_for_each_entry_safe` and\n`netif_napi_del` which aims to delete all entries in `dev-\u003enapi_list`.\nThe program has added an entry `adapter-\u003erx_ring-\u003enapi` which is added by\n`netif_napi_add` in igbvf_alloc_queues(). However, adapter-\u003erx_ring has\nbeen freed below label err_hw_init. So this a UAF.\n\nIn terms of how to patch the problem, we can refer to igbvf_remove() and\ndelete the entry before `adapter-\u003erx_ring`.\n\nThe KASAN logs are as follows:\n\n[   35.126075] BUG: KASAN: use-after-free in free_netdev+0x1fd/0x450\n[   35.127170] Read of size 8 at addr ffff88810126d990 by task modprobe/366\n[   35.128360]\n[   35.128643] CPU: 1 PID: 366 Comm: modprobe Not tainted 5.15.0-rc2+ #14\n[   35.129789] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014\n[   35.131749] Call Trace:\n[   35.132199]  dump_stack_lvl+0x59/0x7b\n[   35.132865]  print_address_description+0x7c/0x3b0\n[   35.133707]  ? free_netdev+0x1fd/0x450\n[   35.134378]  __kasan_report+0x160/0x1c0\n[   35.135063]  ? free_netdev+0x1fd/0x450\n[   35.135738]  kasan_report+0x4b/0x70\n[   35.136367]  free_netdev+0x1fd/0x450\n[   35.137006]  igbvf_probe+0x121d/0x1a10 [igbvf]\n[   35.137808]  ? igbvf_vlan_rx_add_vid+0x100/0x100 [igbvf]\n[   35.138751]  local_pci_probe+0x13c/0x1f0\n[   35.139461]  pci_device_probe+0x37e/0x6c0\n[   35.165526]\n[   35.165806] Allocated by task 366:\n[   35.166414]  ____kasan_kmalloc+0xc4/0xf0\n[   35.167117]  foo_kmem_cache_alloc_trace+0x3c/0x50 [igbvf]\n[   35.168078]  igbvf_probe+0x9c5/0x1a10 [igbvf]\n[   35.168866]  local_pci_probe+0x13c/0x1f0\n[   35.169565]  pci_device_probe+0x37e/0x6c0\n[   35.179713]\n[   35.179993] Freed by task 366:\n[   35.180539]  kasan_set_track+0x4c/0x80\n[   35.181211]  kasan_set_free_info+0x1f/0x40\n[   35.181942]  ____kasan_slab_free+0x103/0x140\n[   35.182703]  kfree+0xe3/0x250\n[   35.183239]  igbvf_probe+0x1173/0x1a10 [igbvf]\n[   35.184040]  local_pci_probe+0x13c/0x1f0"
        }
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        "dateUpdated": "2024-11-04T12:08:43.686Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/ffe1695b678729edec04037e691007900a2b2beb"
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          "url": "https://git.kernel.org/stable/c/79d9b092035dcdbe636b70433149df9cc6db1e49"
        },
        {
          "url": "https://git.kernel.org/stable/c/8d0c927a9fb2b4065230936b77b54f857a3754fc"
        },
        {
          "url": "https://git.kernel.org/stable/c/cc9b655bb84f1be283293dfea94dff9a31b106ac"
        },
        {
          "url": "https://git.kernel.org/stable/c/8addba6cab94ce01686ea2e80ed1530f9dc33a9a"
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        {
          "url": "https://git.kernel.org/stable/c/74a16e062b23332d8db017ff4a41e16279c44411"
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          "url": "https://git.kernel.org/stable/c/944b8be08131f5faf2cd2440aa1c24a39a163a54"
        },
        {
          "url": "https://git.kernel.org/stable/c/b6d335a60dc624c0d279333b22c737faa765b028"
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      ],
      "title": "igbvf: fix double free in `igbvf_probe`",
      "x_generator": {
        "engine": "bippy-9e1c9544281a"
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47589",
    "datePublished": "2024-06-19T14:53:53.565Z",
    "dateReserved": "2024-05-24T15:11:00.732Z",
    "dateUpdated": "2024-11-04T12:08:43.686Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47589\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-06-19T15:15:53.490\",\"lastModified\":\"2024-08-27T03:16:19.000\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nigbvf: fix double free in `igbvf_probe`\\n\\nIn `igbvf_probe`, if register_netdev() fails, the program will go to\\nlabel err_hw_init, and then to label err_ioremap. In free_netdev() which\\nis just below label err_ioremap, there is `list_for_each_entry_safe` and\\n`netif_napi_del` which aims to delete all entries in `dev-\u003enapi_list`.\\nThe program has added an entry `adapter-\u003erx_ring-\u003enapi` which is added by\\n`netif_napi_add` in igbvf_alloc_queues(). However, adapter-\u003erx_ring has\\nbeen freed below label err_hw_init. So this a UAF.\\n\\nIn terms of how to patch the problem, we can refer to igbvf_remove() and\\ndelete the entry before `adapter-\u003erx_ring`.\\n\\nThe KASAN logs are as follows:\\n\\n[   35.126075] BUG: KASAN: use-after-free in free_netdev+0x1fd/0x450\\n[   35.127170] Read of size 8 at addr ffff88810126d990 by task modprobe/366\\n[   35.128360]\\n[   35.128643] CPU: 1 PID: 366 Comm: modprobe Not tainted 5.15.0-rc2+ #14\\n[   35.129789] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014\\n[   35.131749] Call Trace:\\n[   35.132199]  dump_stack_lvl+0x59/0x7b\\n[   35.132865]  print_address_description+0x7c/0x3b0\\n[   35.133707]  ? free_netdev+0x1fd/0x450\\n[   35.134378]  __kasan_report+0x160/0x1c0\\n[   35.135063]  ? free_netdev+0x1fd/0x450\\n[   35.135738]  kasan_report+0x4b/0x70\\n[   35.136367]  free_netdev+0x1fd/0x450\\n[   35.137006]  igbvf_probe+0x121d/0x1a10 [igbvf]\\n[   35.137808]  ? igbvf_vlan_rx_add_vid+0x100/0x100 [igbvf]\\n[   35.138751]  local_pci_probe+0x13c/0x1f0\\n[   35.139461]  pci_device_probe+0x37e/0x6c0\\n[   35.165526]\\n[   35.165806] Allocated by task 366:\\n[   35.166414]  ____kasan_kmalloc+0xc4/0xf0\\n[   35.167117]  foo_kmem_cache_alloc_trace+0x3c/0x50 [igbvf]\\n[   35.168078]  igbvf_probe+0x9c5/0x1a10 [igbvf]\\n[   35.168866]  local_pci_probe+0x13c/0x1f0\\n[   35.169565]  pci_device_probe+0x37e/0x6c0\\n[   35.179713]\\n[   35.179993] Freed by task 366:\\n[   35.180539]  kasan_set_track+0x4c/0x80\\n[   35.181211]  kasan_set_free_info+0x1f/0x40\\n[   35.181942]  ____kasan_slab_free+0x103/0x140\\n[   35.182703]  kfree+0xe3/0x250\\n[   35.183239]  igbvf_probe+0x1173/0x1a10 [igbvf]\\n[   35.184040]  local_pci_probe+0x13c/0x1f0\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: igbvf: corrige double free en `igbvf_probe` En `igbvf_probe`, si Register_netdev() falla, el programa ir\u00e1 a la etiqueta err_hw_init y luego a la etiqueta err_ioremap. En free_netdev(), que est\u00e1 justo debajo de la etiqueta err_ioremap, est\u00e1n `list_for_each_entry_safe` y `netif_napi_del` que tienen como objetivo eliminar todas las entradas en `dev-\u0026gt;napi_list`. El programa ha agregado una entrada `adapter-\u0026gt;rx_ring-\u0026gt;napi` que se agrega mediante `netif_napi_add` en igbvf_alloc_queues(). Sin embargo, adaptador-\u0026gt;rx_ring se ha liberado debajo de la etiqueta err_hw_init. Entonces esto es una UAF. En t\u00e9rminos de c\u00f3mo solucionar el problema, podemos consultar igbvf_remove() y eliminar la entrada antes de `adapter-\u0026gt;rx_ring`. Los registros de KASAN son los siguientes: [35.126075] ERROR: KASAN: use-after-free en free_netdev+0x1fd/0x450 [35.127170] Lectura de tama\u00f1o 8 en la direcci\u00f3n ffff88810126d990 mediante la tarea modprobe/366 [35.128360] [35.128643] CPU: 1 PID : 366 Comm: modprobe Not tainted 5.15.0-rc2+ #14 [ 35.129789] Nombre del hardware: PC est\u00e1ndar QEMU (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01 /2014 [35.131749] Seguimiento de llamadas: [35.132199] dump_stack_lvl+0x59/0x7b [35.132865] print_address_description+0x7c/0x3b0 [35.133707] ? free_netdev+0x1fd/0x450 [ 35.134378] __kasan_report+0x160/0x1c0 [ 35.135063] ? free_netdev+0x1fd/0x450 [ 35.135738] kasan_report+0x4b/0x70 [ 35.136367] free_netdev+0x1fd/0x450 [ 35.137006] igbvf_probe+0x121d/0x1a10 [igbvf] [ 35.137808 ] ? igbvf_vlan_rx_add_vid+0x100/0x100 [igbvf] [ 35.138751] local_pci_probe+0x13c/0x1f0 [ 35.139461] pci_device_probe+0x37e/0x6c0 [ 35.165526] [ 35.165806] por tarea 366: [35.166414] ____kasan_kmalloc+0xc4/0xf0 [35.167117] foo_kmem_cache_alloc_trace+0x3c/ 0x50 [igbvf] [ 35.168078] igbvf_probe+0x9c5/0x1a10 [igbvf] [ 35.168866] local_pci_probe+0x13c/0x1f0 [ 35.169565] pci_device_probe+0x37e/0x6c0 [ 35.179713 ] [35.179993] Liberado por la tarea 366: [35.180539] kasan_set_track+0x4c/0x80 [ 35.181211] kasan_set_free_info+0x1f/0x40 [ 35.181942] ____kasan_slab_free+0x103/0x140 [ 35.182703] kfree+0xe3/0x250 [ 35.183239] igbvf_probe+0x1173/0x1a10 vf] [35.184040] local_pci_probe+0x13c/0x1f0\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-415\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2.6.30\",\"versionEndExcluding\":\"4.4.296\",\"matchCriteriaId\":\"BCDBDCBF-3E2B-4AF7-952D-EB56D077EBF5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.5\",\"versionEndExcluding\":\"4.9.294\",\"matchCriteriaId\":\"BEC14782-2EE3-4635-A927-91559E4F451C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.10\",\"versionEndExcluding\":\"4.14.259\",\"matchCriteriaId\":\"390D64FF-1DB7-4DD1-ADEF-CE96BEA2607C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.15\",\"versionEndExcluding\":\"4.19.222\",\"matchCriteriaId\":\"2D0D89BC-6CF8-4BFB-8C91-472348052528\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.168\",\"matchCriteriaId\":\"195EBAA1-4CCE-4898-9351-F4A0DBCAA022\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.88\",\"matchCriteriaId\":\"A657B2D0-5B9D-42BE-A3BF-228DBC1B057C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.11\",\"matchCriteriaId\":\"11274E95-438A-449A-B100-01B2B0046669\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/74a16e062b23332d8db017ff4a41e16279c44411\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/79d9b092035dcdbe636b70433149df9cc6db1e49\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8addba6cab94ce01686ea2e80ed1530f9dc33a9a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8d0c927a9fb2b4065230936b77b54f857a3754fc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/944b8be08131f5faf2cd2440aa1c24a39a163a54\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b6d335a60dc624c0d279333b22c737faa765b028\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/cc9b655bb84f1be283293dfea94dff9a31b106ac\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ffe1695b678729edec04037e691007900a2b2beb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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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.
  • 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.