cve-2022-48811
Vulnerability from cvelistv5
Published
2024-07-16 11:44
Modified
2024-11-04 12:17
Severity ?
Summary
ibmvnic: don't release napi in __ibmvnic_open()
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/61772b0908c640d0309c40f7d41d062ca4e979fa
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/960dfaf3b578dd23af012590e809ae2d58ba1827
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e08cb9056fb2564d1f6bad789bdf79ab09bf2f81
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/61772b0908c640d0309c40f7d41d062ca4e979fa
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/960dfaf3b578dd23af012590e809ae2d58ba1827
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/e08cb9056fb2564d1f6bad789bdf79ab09bf2f81
Impacted products
Vendor Product Version
Linux Linux Version: 4.12
Show details on NVD website

To clipboard 

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          "dateUpdated": "2024-08-03T15:25:01.589Z",
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                "id": "CVE-2022-48811",
                "options": [
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                    "Automatable": "no"
                  },
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                    "Technical Impact": "partial"
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                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T16:58:31.602565Z",
                "version": "2.0.3"
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          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/ibm/ibmvnic.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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          "programFiles": [
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          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "4.12"
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              "status": "unaffected",
              "version": "0",
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              "version": "5.15.27",
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              "status": "unaffected",
              "version": "5.16.10",
              "versionType": "semver"
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              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.17",
              "versionType": "original_commit_for_fix"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nibmvnic: don\u0027t release napi in __ibmvnic_open()\n\nIf __ibmvnic_open() encounters an error such as when setting link state,\nit calls release_resources() which frees the napi structures needlessly.\nInstead, have __ibmvnic_open() only clean up the work it did so far (i.e.\ndisable napi and irqs) and leave the rest to the callers.\n\nIf caller of __ibmvnic_open() is ibmvnic_open(), it should release the\nresources immediately. If the caller is do_reset() or do_hard_reset(),\nthey will release the resources on the next reset.\n\nThis fixes following crash that occurred when running the drmgr command\nseveral times to add/remove a vnic interface:\n\n\t[102056] ibmvnic 30000003 env3: Disabling rx_scrq[6] irq\n\t[102056] ibmvnic 30000003 env3: Disabling rx_scrq[7] irq\n\t[102056] ibmvnic 30000003 env3: Replenished 8 pools\n\tKernel attempted to read user page (10) - exploit attempt? (uid: 0)\n\tBUG: Kernel NULL pointer dereference on read at 0x00000010\n\tFaulting instruction address: 0xc000000000a3c840\n\tOops: Kernel access of bad area, sig: 11 [#1]\n\tLE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA pSeries\n\t...\n\tCPU: 9 PID: 102056 Comm: kworker/9:2 Kdump: loaded Not tainted 5.16.0-rc5-autotest-g6441998e2e37 #1\n\tWorkqueue: events_long __ibmvnic_reset [ibmvnic]\n\tNIP:  c000000000a3c840 LR: c0080000029b5378 CTR: c000000000a3c820\n\tREGS: c0000000548e37e0 TRAP: 0300   Not tainted  (5.16.0-rc5-autotest-g6441998e2e37)\n\tMSR:  8000000000009033 \u003cSF,EE,ME,IR,DR,RI,LE\u003e  CR: 28248484  XER: 00000004\n\tCFAR: c0080000029bdd24 DAR: 0000000000000010 DSISR: 40000000 IRQMASK: 0\n\tGPR00: c0080000029b55d0 c0000000548e3a80 c0000000028f0200 0000000000000000\n\t...\n\tNIP [c000000000a3c840] napi_enable+0x20/0xc0\n\tLR [c0080000029b5378] __ibmvnic_open+0xf0/0x430 [ibmvnic]\n\tCall Trace:\n\t[c0000000548e3a80] [0000000000000006] 0x6 (unreliable)\n\t[c0000000548e3ab0] [c0080000029b55d0] __ibmvnic_open+0x348/0x430 [ibmvnic]\n\t[c0000000548e3b40] [c0080000029bcc28] __ibmvnic_reset+0x500/0xdf0 [ibmvnic]\n\t[c0000000548e3c60] [c000000000176228] process_one_work+0x288/0x570\n\t[c0000000548e3d00] [c000000000176588] worker_thread+0x78/0x660\n\t[c0000000548e3da0] [c0000000001822f0] kthread+0x1c0/0x1d0\n\t[c0000000548e3e10] [c00000000000cf64] ret_from_kernel_thread+0x5c/0x64\n\tInstruction dump:\n\t7d2948f8 792307e0 4e800020 60000000 3c4c01eb 384239e0 f821ffd1 39430010\n\t38a0fff6 e92d1100 f9210028 39200000 \u003ce9030010\u003e f9010020 60420000 e9210020\n\t---[ end trace 5f8033b08fd27706 ]---"
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        "dateUpdated": "2024-11-04T12:17:02.502Z",
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      ],
      "title": "ibmvnic: don\u0027t release napi in __ibmvnic_open()",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-48811",
    "datePublished": "2024-07-16T11:44:01.224Z",
    "dateReserved": "2024-07-16T11:38:08.898Z",
    "dateUpdated": "2024-11-04T12:17:02.502Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-48811\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-07-16T12:15:05.367\",\"lastModified\":\"2024-11-21T07:34:08.027\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nibmvnic: don\u0027t release napi in __ibmvnic_open()\\n\\nIf __ibmvnic_open() encounters an error such as when setting link state,\\nit calls release_resources() which frees the napi structures needlessly.\\nInstead, have __ibmvnic_open() only clean up the work it did so far (i.e.\\ndisable napi and irqs) and leave the rest to the callers.\\n\\nIf caller of __ibmvnic_open() is ibmvnic_open(), it should release the\\nresources immediately. If the caller is do_reset() or do_hard_reset(),\\nthey will release the resources on the next reset.\\n\\nThis fixes following crash that occurred when running the drmgr command\\nseveral times to add/remove a vnic interface:\\n\\n\\t[102056] ibmvnic 30000003 env3: Disabling rx_scrq[6] irq\\n\\t[102056] ibmvnic 30000003 env3: Disabling rx_scrq[7] irq\\n\\t[102056] ibmvnic 30000003 env3: Replenished 8 pools\\n\\tKernel attempted to read user page (10) - exploit attempt? (uid: 0)\\n\\tBUG: Kernel NULL pointer dereference on read at 0x00000010\\n\\tFaulting instruction address: 0xc000000000a3c840\\n\\tOops: Kernel access of bad area, sig: 11 [#1]\\n\\tLE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA pSeries\\n\\t...\\n\\tCPU: 9 PID: 102056 Comm: kworker/9:2 Kdump: loaded Not tainted 5.16.0-rc5-autotest-g6441998e2e37 #1\\n\\tWorkqueue: events_long __ibmvnic_reset [ibmvnic]\\n\\tNIP:  c000000000a3c840 LR: c0080000029b5378 CTR: c000000000a3c820\\n\\tREGS: c0000000548e37e0 TRAP: 0300   Not tainted  (5.16.0-rc5-autotest-g6441998e2e37)\\n\\tMSR:  8000000000009033 \u003cSF,EE,ME,IR,DR,RI,LE\u003e  CR: 28248484  XER: 00000004\\n\\tCFAR: c0080000029bdd24 DAR: 0000000000000010 DSISR: 40000000 IRQMASK: 0\\n\\tGPR00: c0080000029b55d0 c0000000548e3a80 c0000000028f0200 0000000000000000\\n\\t...\\n\\tNIP [c000000000a3c840] napi_enable+0x20/0xc0\\n\\tLR [c0080000029b5378] __ibmvnic_open+0xf0/0x430 [ibmvnic]\\n\\tCall Trace:\\n\\t[c0000000548e3a80] [0000000000000006] 0x6 (unreliable)\\n\\t[c0000000548e3ab0] [c0080000029b55d0] __ibmvnic_open+0x348/0x430 [ibmvnic]\\n\\t[c0000000548e3b40] [c0080000029bcc28] __ibmvnic_reset+0x500/0xdf0 [ibmvnic]\\n\\t[c0000000548e3c60] [c000000000176228] process_one_work+0x288/0x570\\n\\t[c0000000548e3d00] [c000000000176588] worker_thread+0x78/0x660\\n\\t[c0000000548e3da0] [c0000000001822f0] kthread+0x1c0/0x1d0\\n\\t[c0000000548e3e10] [c00000000000cf64] ret_from_kernel_thread+0x5c/0x64\\n\\tInstruction dump:\\n\\t7d2948f8 792307e0 4e800020 60000000 3c4c01eb 384239e0 f821ffd1 39430010\\n\\t38a0fff6 e92d1100 f9210028 39200000 \u003ce9030010\u003e f9010020 60420000 e9210020\\n\\t---[ end trace 5f8033b08fd27706 ]---\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ibmvnic: no liberar napi en __ibmvnic_open() Si __ibmvnic_open() encuentra un error como al configurar el estado del enlace, llama a release_resources() que libera las estructuras de napi innecesariamente. En su lugar, haga que __ibmvnic_open() solo limpie el trabajo que hizo hasta ahora (es decir, deshabilite napi e irqs) y deje el resto a las personas que llaman. Si el llamador de __ibmvnic_open() es ibmvnic_open(), deber\u00eda liberar los recursos inmediatamente. Si la persona que llama es do_reset() o do_hard_reset(), liberar\u00e1 los recursos en el pr\u00f3ximo reinicio. Esto corrige el siguiente fallo que se produjo al ejecutar el comando drmgr varias veces para agregar/eliminar una interfaz vnic: [102056] ibmvnic 30000003 env3: deshabilitar rx_scrq[6] irq [102056] ibmvnic 30000003 env3: deshabilitar rx_scrq[7] irq [102056] ibmvnic 30000003 env3: Se reabastecieron 8 grupos. El kernel intent\u00f3 leer la p\u00e1gina del usuario (10): \u00bfintento de explotaci\u00f3n? (uid: 0) ERROR: Desreferencia del puntero NULL del kernel al leer en 0x00000010 Direcci\u00f3n de instrucci\u00f3n err\u00f3nea: 0xc000000000a3c840 Ups: Acceso al kernel del \u00e1rea defectuosa, firma: 11 [#1] LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA pSeries .. CPU: 9 PID: 102056 Comm: kworker/9:2 Kdump: cargado No contaminado 5.16.0-rc5-autotest-g6441998e2e37 #1 Cola de trabajo: events_long __ibmvnic_reset [ibmvnic] NIP: c000000000a3c840 LR: c0080000029b537. 8 CTR: c000000000a3c820 REGS: c0000000548e37e0 TRAMPA : 0300 No contaminado (5.16.0-rc5-autotest-g6441998e2e37) MSR: 8000000000009033  CR: 28248484 XER: 00000004 CFAR: c0080000029bdd24 DAR: 00000000010 DSISR: 40000000 IRQMASK: 0 GPR00: c0080000029b55d0 c0000000548e3a80 c0000000028f0200 0000000000000000 ... NIP [c000000000a3c840] napi_enable+0x20/0xc0 LR [c0080000029b 5378] __ibmvnic_open+0xf0/0x430 [ibmvnic] Seguimiento de llamadas: [c0000000548e3a80] [0000000000000006] 0x6 (no confiable) [c0000000548e3ab0] [c0080000029b55d0] __ibmvnic_open+0x348/0x430 [ibmvnic] [c0000000548e3b40] [c0080000029bcc28] __ibmvnic_reset+0x500/0xdf0 [ibmvnic] [c0000000548e3c60] [c000000000176228 ] proceso_one_work+0x288/0x570 [c0000000548e3d00] [c000000000176588] hilo_trabajador+0x78/0x660 [c0000000548e3da0] [c0000000001822f0] kthread+0x1c0/0x1d0 [c0000000548e3e10] [c00000000000cf64] ret_from_kernel_thread+0x5c/0x64 Volcado de instrucciones: 7d2948f8 792307e0 4e800020 60000000 3c4c01eb 9e0 f821ffd1 39430010 38a0fff6 e92d1100 f9210028 39200000  f9010020 60420000 e9210020 ---[ final de seguimiento 5f8033b08fd27706 ]---\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/61772b0908c640d0309c40f7d41d062ca4e979fa\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/960dfaf3b578dd23af012590e809ae2d58ba1827\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e08cb9056fb2564d1f6bad789bdf79ab09bf2f81\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/61772b0908c640d0309c40f7d41d062ca4e979fa\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/960dfaf3b578dd23af012590e809ae2d58ba1827\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/e08cb9056fb2564d1f6bad789bdf79ab09bf2f81\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


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