cve-2022-48865
Vulnerability from cvelistv5
Published
2024-07-16 12:25
Modified
2024-11-04 12:18
Severity ?
Summary
tipc: fix kernel panic when enabling bearer
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2de76d37d4a6dca9b96ea51da24d4290e6cfa1a5Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/be4977b847f5d5cedb64d50eaaf2218c3a55a3a3Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f4f59fdbc748805b08c13dae14c01f0518c77c94Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f96dc3adb9a97b8f3dfdb88796483491a3006b71Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/2de76d37d4a6dca9b96ea51da24d4290e6cfa1a5Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/be4977b847f5d5cedb64d50eaaf2218c3a55a3a3Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/f4f59fdbc748805b08c13dae14c01f0518c77c94Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/f96dc3adb9a97b8f3dfdb88796483491a3006b71Patch
Impacted products
Vendor Product Version
Linux Linux Version: 4.8
Show details on NVD website

To clipboard 

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    "cna": {
      "affected": [
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/tipc/bearer.c"
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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          "vendor": "Linux",
          "versions": [
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              "version": "0",
              "versionType": "semver"
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              "versionType": "semver"
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              "version": "5.15.29",
              "versionType": "semver"
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              "version": "5.16.15",
              "versionType": "semver"
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              "status": "unaffected",
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              "versionType": "original_commit_for_fix"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntipc: fix kernel panic when enabling bearer\n\nWhen enabling a bearer on a node, a kernel panic is observed:\n\n[    4.498085] RIP: 0010:tipc_mon_prep+0x4e/0x130 [tipc]\n...\n[    4.520030] Call Trace:\n[    4.520689]  \u003cIRQ\u003e\n[    4.521236]  tipc_link_build_proto_msg+0x375/0x750 [tipc]\n[    4.522654]  tipc_link_build_state_msg+0x48/0xc0 [tipc]\n[    4.524034]  __tipc_node_link_up+0xd7/0x290 [tipc]\n[    4.525292]  tipc_rcv+0x5da/0x730 [tipc]\n[    4.526346]  ? __netif_receive_skb_core+0xb7/0xfc0\n[    4.527601]  tipc_l2_rcv_msg+0x5e/0x90 [tipc]\n[    4.528737]  __netif_receive_skb_list_core+0x20b/0x260\n[    4.530068]  netif_receive_skb_list_internal+0x1bf/0x2e0\n[    4.531450]  ? dev_gro_receive+0x4c2/0x680\n[    4.532512]  napi_complete_done+0x6f/0x180\n[    4.533570]  virtnet_poll+0x29c/0x42e [virtio_net]\n...\n\nThe node in question is receiving activate messages in another\nthread after changing bearer status to allow message sending/\nreceiving in current thread:\n\n         thread 1           |              thread 2\n         --------           |              --------\n                            |\ntipc_enable_bearer()        |\n  test_and_set_bit_lock()   |\n    tipc_bearer_xmit_skb()  |\n                            | tipc_l2_rcv_msg()\n                            |   tipc_rcv()\n                            |     __tipc_node_link_up()\n                            |       tipc_link_build_state_msg()\n                            |         tipc_link_build_proto_msg()\n                            |           tipc_mon_prep()\n                            |           {\n                            |             ...\n                            |             // null-pointer dereference\n                            |             u16 gen = mon-\u003edom_gen;\n                            |             ...\n                            |           }\n  // Not being executed yet |\n  tipc_mon_create()         |\n  {                         |\n    ...                     |\n    // allocate             |\n    mon = kzalloc();        |\n    ...                     |\n  }                         |\n\nMonitoring pointer in thread 2 is dereferenced before monitoring data\nis allocated in thread 1. This causes kernel panic.\n\nThis commit fixes it by allocating the monitoring data before enabling\nthe bearer to receive messages."
        }
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      "title": "tipc: fix kernel panic when enabling bearer",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-48865",
    "datePublished": "2024-07-16T12:25:27.843Z",
    "dateReserved": "2024-07-16T11:38:08.920Z",
    "dateUpdated": "2024-11-04T12:18:06.285Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-48865\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-07-16T13:15:13.300\",\"lastModified\":\"2024-11-21T07:34:14.497\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ntipc: fix kernel panic when enabling bearer\\n\\nWhen enabling a bearer on a node, a kernel panic is observed:\\n\\n[    4.498085] RIP: 0010:tipc_mon_prep+0x4e/0x130 [tipc]\\n...\\n[    4.520030] Call Trace:\\n[    4.520689]  \u003cIRQ\u003e\\n[    4.521236]  tipc_link_build_proto_msg+0x375/0x750 [tipc]\\n[    4.522654]  tipc_link_build_state_msg+0x48/0xc0 [tipc]\\n[    4.524034]  __tipc_node_link_up+0xd7/0x290 [tipc]\\n[    4.525292]  tipc_rcv+0x5da/0x730 [tipc]\\n[    4.526346]  ? __netif_receive_skb_core+0xb7/0xfc0\\n[    4.527601]  tipc_l2_rcv_msg+0x5e/0x90 [tipc]\\n[    4.528737]  __netif_receive_skb_list_core+0x20b/0x260\\n[    4.530068]  netif_receive_skb_list_internal+0x1bf/0x2e0\\n[    4.531450]  ? dev_gro_receive+0x4c2/0x680\\n[    4.532512]  napi_complete_done+0x6f/0x180\\n[    4.533570]  virtnet_poll+0x29c/0x42e [virtio_net]\\n...\\n\\nThe node in question is receiving activate messages in another\\nthread after changing bearer status to allow message sending/\\nreceiving in current thread:\\n\\n         thread 1           |              thread 2\\n         --------           |              --------\\n                            |\\ntipc_enable_bearer()        |\\n  test_and_set_bit_lock()   |\\n    tipc_bearer_xmit_skb()  |\\n                            | tipc_l2_rcv_msg()\\n                            |   tipc_rcv()\\n                            |     __tipc_node_link_up()\\n                            |       tipc_link_build_state_msg()\\n                            |         tipc_link_build_proto_msg()\\n                            |           tipc_mon_prep()\\n                            |           {\\n                            |             ...\\n                            |             // null-pointer dereference\\n                            |             u16 gen = mon-\u003edom_gen;\\n                            |             ...\\n                            |           }\\n  // Not being executed yet |\\n  tipc_mon_create()         |\\n  {                         |\\n    ...                     |\\n    // allocate             |\\n    mon = kzalloc();        |\\n    ...                     |\\n  }                         |\\n\\nMonitoring pointer in thread 2 is dereferenced before monitoring data\\nis allocated in thread 1. This causes kernel panic.\\n\\nThis commit fixes it by allocating the monitoring data before enabling\\nthe bearer to receive messages.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: tipc: corrige el p\u00e1nico del kernel al habilitar el portador Al habilitar un portador en un nodo, se observa un p\u00e1nico del kernel: [4.498085] RIP: 0010:tipc_mon_prep+0x4e/0x130 [tipc]. .. [ 4.520030] Seguimiento de llamadas: [ 4.520689]  [ 4.521236] tipc_link_build_proto_msg+0x375/0x750 [tipc] [ 4.522654] tipc_link_build_state_msg+0x48/0xc0 [tipc] [ 4.524034] c_node_link_up+0xd7/0x290 [tipc] [4.525292] tipc_rcv+0x5da/0x730 [tipc] [4.526346]? __netif_receive_skb_core+0xb7/0xfc0 [ 4.527601] tipc_l2_rcv_msg+0x5e/0x90 [tipc] [ 4.528737] __netif_receive_skb_list_core+0x20b/0x260 [ 4.530068] externo+0x1bf/0x2e0 [ 4.531450] ? dev_gro_receive+0x4c2/0x680 [ 4.532512] napi_complete_done+0x6f/0x180 [ 4.533570] virtnet_poll+0x29c/0x42e [virtio_net] ... El nodo en cuesti\u00f3n est\u00e1 recibiendo mensajes de activaci\u00f3n en otro hilo despu\u00e9s de cambiar el estado del portador para permitir el env\u00edo/recepci\u00f3n de mensajes en el actual hilo: hilo 1 | hilo 2 -------- | -------- | tipc_enable_bearer() | test_and_set_bit_lock() | tipc_bearer_xmit_skb() | | tipc_l2_rcv_msg() | tipc_rcv() | __tipc_node_link_up() | tipc_link_build_state_msg() | tipc_link_build_proto_msg() | tipc_mon_prep() | { | ... | // desreferencia del puntero nulo | u16 gen = mon-\u0026gt;dom_gen; | ... | } // A\u00fan no se est\u00e1 ejecutando | tipc_mon_create() | { | ... | // asignar | lunes = kzalloc(); | ... | } | Se elimina la referencia al puntero de monitoreo en el subproceso 2 antes de que los datos de monitoreo se asignen en el subproceso 1. Esto provoca p\u00e1nico en el kernel. Esta confirmaci\u00f3n lo soluciona asignando los datos de monitoreo antes de permitir que el portador reciba mensajes.\"}],\"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:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.8\",\"versionEndExcluding\":\"5.10.106\",\"matchCriteriaId\":\"C7A6C6FB-2FA7-4B00-A0BF-8F39B0227EFC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.29\",\"matchCriteriaId\":\"15DC6588-B28F-4637-9A1E-3753B34A40CF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"5.16.15\",\"matchCriteriaId\":\"83FDEDF2-0E19-4879-91FD-171E66D1B335\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2de76d37d4a6dca9b96ea51da24d4290e6cfa1a5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/be4977b847f5d5cedb64d50eaaf2218c3a55a3a3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f4f59fdbc748805b08c13dae14c01f0518c77c94\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f96dc3adb9a97b8f3dfdb88796483491a3006b71\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/2de76d37d4a6dca9b96ea51da24d4290e6cfa1a5\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/be4977b847f5d5cedb64d50eaaf2218c3a55a3a3\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f4f59fdbc748805b08c13dae14c01f0518c77c94\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f96dc3adb9a97b8f3dfdb88796483491a3006b71\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}"
  }
}


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