cve-2022-48830
Vulnerability from cvelistv5
Published
2024-07-16 11:44
Modified
2024-11-04 12:17
Severity ?
Summary
can: isotp: fix potential CAN frame reception race in isotp_rcv()
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5b068f33bc8acfcfd5ea7992a2dafb30d89bad30
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7b53d2204ce79b27a878074a77d64f40ec21dbca
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7c759040c1dd03954f650f147ae7175476d51314
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f90cc68f9f4b5d8585ad5d0a206a9d37ac299ef3
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/5b068f33bc8acfcfd5ea7992a2dafb30d89bad30
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/7b53d2204ce79b27a878074a77d64f40ec21dbca
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/7c759040c1dd03954f650f147ae7175476d51314
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/f90cc68f9f4b5d8585ad5d0a206a9d37ac299ef3
Impacted products
Vendor Product Version
Linux Linux Version: 5.10
Show details on NVD website

To clipboard 

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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: isotp: fix potential CAN frame reception race in isotp_rcv()\n\nWhen receiving a CAN frame the current code logic does not consider\nconcurrently receiving processes which do not show up in real world\nusage.\n\nZiyang Xuan writes:\n\nThe following syz problem is one of the scenarios. so-\u003erx.len is\nchanged by isotp_rcv_ff() during isotp_rcv_cf(), so-\u003erx.len equals\n0 before alloc_skb() and equals 4096 after alloc_skb(). That will\ntrigger skb_over_panic() in skb_put().\n\n=======================================================\nCPU: 1 PID: 19 Comm: ksoftirqd/1 Not tainted 5.16.0-rc8-syzkaller #0\nRIP: 0010:skb_panic+0x16c/0x16e net/core/skbuff.c:113\nCall Trace:\n \u003cTASK\u003e\n skb_over_panic net/core/skbuff.c:118 [inline]\n skb_put.cold+0x24/0x24 net/core/skbuff.c:1990\n isotp_rcv_cf net/can/isotp.c:570 [inline]\n isotp_rcv+0xa38/0x1e30 net/can/isotp.c:668\n deliver net/can/af_can.c:574 [inline]\n can_rcv_filter+0x445/0x8d0 net/can/af_can.c:635\n can_receive+0x31d/0x580 net/can/af_can.c:665\n can_rcv+0x120/0x1c0 net/can/af_can.c:696\n __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5465\n __netif_receive_skb+0x24/0x1b0 net/core/dev.c:5579\n\nTherefore we make sure the state changes and data structures stay\nconsistent at CAN frame reception time by adding a spin_lock in\nisotp_rcv(). This fixes the issue reported by syzkaller but does not\naffect real world operation."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-04T12:17:24.771Z",
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    "cveId": "CVE-2022-48830",
    "datePublished": "2024-07-16T11:44:13.987Z",
    "dateReserved": "2024-07-16T11:38:08.904Z",
    "dateUpdated": "2024-11-04T12:17:24.771Z",
    "state": "PUBLISHED"
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    "nvd": "{\"cve\":{\"id\":\"CVE-2022-48830\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-07-16T12:15:06.613\",\"lastModified\":\"2024-11-21T07:34:10.103\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncan: isotp: fix potential CAN frame reception race in isotp_rcv()\\n\\nWhen receiving a CAN frame the current code logic does not consider\\nconcurrently receiving processes which do not show up in real world\\nusage.\\n\\nZiyang Xuan writes:\\n\\nThe following syz problem is one of the scenarios. so-\u003erx.len is\\nchanged by isotp_rcv_ff() during isotp_rcv_cf(), so-\u003erx.len equals\\n0 before alloc_skb() and equals 4096 after alloc_skb(). That will\\ntrigger skb_over_panic() in skb_put().\\n\\n=======================================================\\nCPU: 1 PID: 19 Comm: ksoftirqd/1 Not tainted 5.16.0-rc8-syzkaller #0\\nRIP: 0010:skb_panic+0x16c/0x16e net/core/skbuff.c:113\\nCall Trace:\\n \u003cTASK\u003e\\n skb_over_panic net/core/skbuff.c:118 [inline]\\n skb_put.cold+0x24/0x24 net/core/skbuff.c:1990\\n isotp_rcv_cf net/can/isotp.c:570 [inline]\\n isotp_rcv+0xa38/0x1e30 net/can/isotp.c:668\\n deliver net/can/af_can.c:574 [inline]\\n can_rcv_filter+0x445/0x8d0 net/can/af_can.c:635\\n can_receive+0x31d/0x580 net/can/af_can.c:665\\n can_rcv+0x120/0x1c0 net/can/af_can.c:696\\n __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5465\\n __netif_receive_skb+0x24/0x1b0 net/core/dev.c:5579\\n\\nTherefore we make sure the state changes and data structures stay\\nconsistent at CAN frame reception time by adding a spin_lock in\\nisotp_rcv(). This fixes the issue reported by syzkaller but does not\\naffect real world operation.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: can: isotp: corrige una posible ejecuci\u00f3n de recepci\u00f3n de tramas CAN en isotp_rcv() Al recibir una trama CAN, la l\u00f3gica del c\u00f3digo actual no considera la recepci\u00f3n simult\u00e1nea de procesos que no aparecen en el uso en el mundo real. Ziyang Xuan escribe: El siguiente problema syz es uno de los escenarios. so-\u0026gt;rx.len es cambiado por isotp_rcv_ff() durante isotp_rcv_cf(), so-\u0026gt;rx.len es igual a 0 antes de alloc_skb() y es igual a 4096 despu\u00e9s de alloc_skb(). Eso activar\u00e1 skb_over_panic() en skb_put(). ==================================================== ===== CPU: 1 PID: 19 Comm: ksoftirqd/1 No contaminado 5.16.0-rc8-syzkaller #0 RIP: 0010:skb_panic+0x16c/0x16e net/core/skbuff.c:113 Seguimiento de llamadas:  skb_over_panic net/core/skbuff.c:118 [en l\u00ednea] skb_put.cold+0x24/0x24 net/core/skbuff.c:1990 isotp_rcv_cf net/can/isotp.c:570 [en l\u00ednea] isotp_rcv+0xa38/0x1e30 net/ can/isotp.c:668 entregar net/can/af_can.c:574 [en l\u00ednea] can_rcv_filter+0x445/0x8d0 net/can/af_can.c:635 can_receive+0x31d/0x580 net/can/af_can.c:665 can_rcv+ 0x120/0x1c0 net/can/af_can.c:696 __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5465 __netif_receive_skb+0x24/0x1b0 net/core/dev.c:5579 Por lo tanto, nos aseguramos de que los cambios de estado y las estructuras de datos mantenga la coherencia en el momento de recepci\u00f3n de la trama CAN agregando un spin_lock en isotp_rcv(). Esto soluciona el problema informado por syzkaller pero no afecta el funcionamiento en el mundo real.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/5b068f33bc8acfcfd5ea7992a2dafb30d89bad30\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7b53d2204ce79b27a878074a77d64f40ec21dbca\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7c759040c1dd03954f650f147ae7175476d51314\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f90cc68f9f4b5d8585ad5d0a206a9d37ac299ef3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5b068f33bc8acfcfd5ea7992a2dafb30d89bad30\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/7b53d2204ce79b27a878074a77d64f40ec21dbca\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/7c759040c1dd03954f650f147ae7175476d51314\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/f90cc68f9f4b5d8585ad5d0a206a9d37ac299ef3\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


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