fkie_cve-2024-53119
Vulnerability from fkie_nvd
Published
2024-12-02 14:15
Modified
2024-12-19 19:15
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: virtio/vsock: Fix accept_queue memory leak As the final stages of socket destruction may be delayed, it is possible that virtio_transport_recv_listen() will be called after the accept_queue has been flushed, but before the SOCK_DONE flag has been set. As a result, sockets enqueued after the flush would remain unremoved, leading to a memory leak. vsock_release __vsock_release lock virtio_transport_release virtio_transport_close schedule_delayed_work(close_work) sk_shutdown = SHUTDOWN_MASK (!) flush accept_queue release virtio_transport_recv_pkt vsock_find_bound_socket lock if flag(SOCK_DONE) return virtio_transport_recv_listen child = vsock_create_connected (!) vsock_enqueue_accept(child) release close_work lock virtio_transport_do_close set_flag(SOCK_DONE) virtio_transport_remove_sock vsock_remove_sock vsock_remove_bound release Introduce a sk_shutdown check to disallow vsock_enqueue_accept() during socket destruction. unreferenced object 0xffff888109e3f800 (size 2040): comm "kworker/5:2", pid 371, jiffies 4294940105 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 28 00 0b 40 00 00 00 00 00 00 00 00 00 00 00 00 (..@............ backtrace (crc 9e5f4e84): [<ffffffff81418ff1>] kmem_cache_alloc_noprof+0x2c1/0x360 [<ffffffff81d27aa0>] sk_prot_alloc+0x30/0x120 [<ffffffff81d2b54c>] sk_alloc+0x2c/0x4b0 [<ffffffff81fe049a>] __vsock_create.constprop.0+0x2a/0x310 [<ffffffff81fe6d6c>] virtio_transport_recv_pkt+0x4dc/0x9a0 [<ffffffff81fe745d>] vsock_loopback_work+0xfd/0x140 [<ffffffff810fc6ac>] process_one_work+0x20c/0x570 [<ffffffff810fce3f>] worker_thread+0x1bf/0x3a0 [<ffffffff811070dd>] kthread+0xdd/0x110 [<ffffffff81044fdd>] ret_from_fork+0x2d/0x50 [<ffffffff8100785a>] ret_from_fork_asm+0x1a/0x30
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2415345042245de7601dcc6eafdbe3a3dcc9e379Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4310902c766e371359e6c6311056ae80b5beeac9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/897617a413e0bf1c6380e3b34b2f28f450508549Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/946c7600fa2207cc8d3fbc86a518ec56f98a5813Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d7b0ff5a866724c3ad21f2628c22a63336deec3fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e26fa236758e8baa61a82cfd9fd4388d2e8d6a4c
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.12
linux linux_kernel 6.12
linux linux_kernel 6.12
linux linux_kernel 6.12
linux linux_kernel 6.12
linux linux_kernel 6.12
linux linux_kernel 6.12


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvirtio/vsock: Fix accept_queue memory leak\n\nAs the final stages of socket destruction may be delayed, it is possible\nthat virtio_transport_recv_listen() will be called after the accept_queue\nhas been flushed, but before the SOCK_DONE flag has been set. As a result,\nsockets enqueued after the flush would remain unremoved, leading to a\nmemory leak.\n\nvsock_release\n  __vsock_release\n    lock\n    virtio_transport_release\n      virtio_transport_close\n        schedule_delayed_work(close_work)\n    sk_shutdown = SHUTDOWN_MASK\n(!) flush accept_queue\n    release\n                                        virtio_transport_recv_pkt\n                                          vsock_find_bound_socket\n                                          lock\n                                          if flag(SOCK_DONE) return\n                                          virtio_transport_recv_listen\n                                            child = vsock_create_connected\n                                      (!)   vsock_enqueue_accept(child)\n                                          release\nclose_work\n  lock\n  virtio_transport_do_close\n    set_flag(SOCK_DONE)\n    virtio_transport_remove_sock\n      vsock_remove_sock\n        vsock_remove_bound\n  release\n\nIntroduce a sk_shutdown check to disallow vsock_enqueue_accept() during\nsocket destruction.\n\nunreferenced object 0xffff888109e3f800 (size 2040):\n  comm \"kworker/5:2\", pid 371, jiffies 4294940105\n  hex dump (first 32 bytes):\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n    28 00 0b 40 00 00 00 00 00 00 00 00 00 00 00 00  (..@............\n  backtrace (crc 9e5f4e84):\n    [\u003cffffffff81418ff1\u003e] kmem_cache_alloc_noprof+0x2c1/0x360\n    [\u003cffffffff81d27aa0\u003e] sk_prot_alloc+0x30/0x120\n    [\u003cffffffff81d2b54c\u003e] sk_alloc+0x2c/0x4b0\n    [\u003cffffffff81fe049a\u003e] __vsock_create.constprop.0+0x2a/0x310\n    [\u003cffffffff81fe6d6c\u003e] virtio_transport_recv_pkt+0x4dc/0x9a0\n    [\u003cffffffff81fe745d\u003e] vsock_loopback_work+0xfd/0x140\n    [\u003cffffffff810fc6ac\u003e] process_one_work+0x20c/0x570\n    [\u003cffffffff810fce3f\u003e] worker_thread+0x1bf/0x3a0\n    [\u003cffffffff811070dd\u003e] kthread+0xdd/0x110\n    [\u003cffffffff81044fdd\u003e] ret_from_fork+0x2d/0x50\n    [\u003cffffffff8100785a\u003e] ret_from_fork_asm+0x1a/0x30"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: virtio/vsock: Se soluciona la p\u00e9rdida de memoria de accept_queue. Como las etapas finales de la destrucci\u00f3n del socket pueden demorarse, es posible que se llame a virtio_transport_recv_listen() despu\u00e9s de que se haya vaciado accept_queue, pero antes de que se haya establecido el indicador SOCK_DONE. Como resultado, los sockets en cola despu\u00e9s del vaciado permanecer\u00edan sin eliminar, lo que provocar\u00eda una p\u00e9rdida de memoria. vsock_release __vsock_release bloquear virtio_transport_release virtio_transport_close schedule_delayed_work(cerrar_trabajo) sk_shutdown = SHUTDOWN_MASK (!) vaciar accept_queue liberar virtio_transport_recv_pkt vsock_find_bound_socket bloquear si indicador(SOCK_DONE) devolver virtio_transport_recv_listen child  = vsock_create_connected (!) vsock_enqueue_accept(child) liberar close_work bloquear virtio_transport_do_close set_flag(SOCK_DONE) virtio_transport_remove_sock vsock_remove_sock vsock_remove_bound liberar Introduce una comprobaci\u00f3n de sk_shutdown para no permitir vsock_enqueue_accept() durante la destrucci\u00f3n del socket. objeto sin referencia 0xffff888109e3f800 (tama\u00f1o 2040): comm \"kworker/5:2\", pid 371, jiffies 4294940105 volcado hexadecimal (primeros 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 28 00 0b 40 00 00 00 00 00 00 00 00 00 00 00 00 (..@............ backtrace (crc 9e5f4e84): [] kmem_cache_alloc_noprof+0x2c1/0x360 [] sk_prot_alloc+0x30/0x120 [] sk_alloc+0x2c/0x4b0 [] __vsock_create.constprop.0+0x2a/0x310 [] virtio_transport_recv_pkt+0x4dc/0x9a0 [] vsock_loopback_work+0xfd/0x140 [] process_one_work+0x20c/0x570 [] subproceso_trabajador+0x1bf/0x3a0 [] kthread+0xdd/0x110 [] ret_de_la_bifurcaci\u00f3n+0x2d/0x50 [] ret_de_la_bifurcaci\u00f3n_asm+0x1a/0x30"
    }
  ],
  "id": "CVE-2024-53119",
  "lastModified": "2024-12-19T19:15:07.407",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-12-02T14:15:12.667",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/2415345042245de7601dcc6eafdbe3a3dcc9e379"
    },
    {
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      "url": "https://git.kernel.org/stable/c/4310902c766e371359e6c6311056ae80b5beeac9"
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      "url": "https://git.kernel.org/stable/c/e26fa236758e8baa61a82cfd9fd4388d2e8d6a4c"
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-401"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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