CVE-2022-48865 (GCVE-0-2022-48865)

Vulnerability from cvelistv5 – Published: 2024-07-16 12:25 – Updated: 2026-05-11 18:48
VLAI
Title
tipc: fix kernel panic when enabling bearer
Summary
In the Linux kernel, the following vulnerability has been resolved: tipc: fix kernel panic when enabling bearer When enabling a bearer on a node, a kernel panic is observed: [ 4.498085] RIP: 0010:tipc_mon_prep+0x4e/0x130 [tipc] ... [ 4.520030] Call Trace: [ 4.520689] <IRQ> [ 4.521236] tipc_link_build_proto_msg+0x375/0x750 [tipc] [ 4.522654] tipc_link_build_state_msg+0x48/0xc0 [tipc] [ 4.524034] __tipc_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] netif_receive_skb_list_internal+0x1bf/0x2e0 [ 4.531450] ? dev_gro_receive+0x4c2/0x680 [ 4.532512] napi_complete_done+0x6f/0x180 [ 4.533570] virtnet_poll+0x29c/0x42e [virtio_net] ... The node in question is receiving activate messages in another thread after changing bearer status to allow message sending/ receiving in current thread: thread 1 | thread 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() | { | ... | // null-pointer dereference | u16 gen = mon->dom_gen; | ... | } // Not being executed yet | tipc_mon_create() | { | ... | // allocate | mon = kzalloc(); | ... | } | Monitoring pointer in thread 2 is dereferenced before monitoring data is allocated in thread 1. This causes kernel panic. This commit fixes it by allocating the monitoring data before enabling the bearer to receive messages.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 16:25 UTC
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6637 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 35c55c9877f8de0ab129fa1a309271d0ecc868b9 , < 2de76d37d4a6dca9b96ea51da24d4290e6cfa1a5 (git)
Affected: 35c55c9877f8de0ab129fa1a309271d0ecc868b9 , < f96dc3adb9a97b8f3dfdb88796483491a3006b71 (git)
Affected: 35c55c9877f8de0ab129fa1a309271d0ecc868b9 , < f4f59fdbc748805b08c13dae14c01f0518c77c94 (git)
Affected: 35c55c9877f8de0ab129fa1a309271d0ecc868b9 , < be4977b847f5d5cedb64d50eaaf2218c3a55a3a3 (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.8
Unaffected: 0 , < 4.8 (semver)
Unaffected: 5.10.106 , ≤ 5.10.* (semver)
Unaffected: 5.15.29 , ≤ 5.15.* (semver)
Unaffected: 5.16.15 , ≤ 5.16.* (semver)
Unaffected: 5.17 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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          "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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          "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."
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            "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."
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        "assignerShortName": "Linux",
        "cveId": "CVE-2022-48865",
        "datePublished": "2024-07-16T12:25:27.843Z",
        "dateReserved": "2024-07-16T11:38:08.920Z",
        "dateUpdated": "2026-05-11T18:48:39.204Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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    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.