CVE-2022-49741 (GCVE-0-2022-49741)
Vulnerability from cvelistv5
Published
2025-03-27 16:42
Modified
2025-05-04 08:44
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: fbdev: smscufx: fix error handling code in ufx_usb_probe The current error handling code in ufx_usb_probe have many unmatching issues, e.g., missing ufx_free_usb_list, destroy_modedb label should only include framebuffer_release, fb_dealloc_cmap only matches fb_alloc_cmap. My local syzkaller reports a memory leak bug: memory leak in ufx_usb_probe BUG: memory leak unreferenced object 0xffff88802f879580 (size 128): comm "kworker/0:7", pid 17416, jiffies 4295067474 (age 46.710s) hex dump (first 32 bytes): 80 21 7c 2e 80 88 ff ff 18 d0 d0 0c 80 88 ff ff .!|............. 00 d0 d0 0c 80 88 ff ff e0 ff ff ff 0f 00 00 00 ................ backtrace: [<ffffffff814c99a0>] kmalloc_trace+0x20/0x90 mm/slab_common.c:1045 [<ffffffff824d219c>] kmalloc include/linux/slab.h:553 [inline] [<ffffffff824d219c>] kzalloc include/linux/slab.h:689 [inline] [<ffffffff824d219c>] ufx_alloc_urb_list drivers/video/fbdev/smscufx.c:1873 [inline] [<ffffffff824d219c>] ufx_usb_probe+0x11c/0x15a0 drivers/video/fbdev/smscufx.c:1655 [<ffffffff82d17927>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396 [<ffffffff82712f0d>] call_driver_probe drivers/base/dd.c:560 [inline] [<ffffffff82712f0d>] really_probe+0x12d/0x390 drivers/base/dd.c:639 [<ffffffff8271322f>] __driver_probe_device+0xbf/0x140 drivers/base/dd.c:778 [<ffffffff827132da>] driver_probe_device+0x2a/0x120 drivers/base/dd.c:808 [<ffffffff82713c27>] __device_attach_driver+0xf7/0x150 drivers/base/dd.c:936 [<ffffffff82710137>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:427 [<ffffffff827136b5>] __device_attach+0x105/0x2d0 drivers/base/dd.c:1008 [<ffffffff82711d36>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:487 [<ffffffff8270e242>] device_add+0x642/0xdc0 drivers/base/core.c:3517 [<ffffffff82d14d5f>] usb_set_configuration+0x8ef/0xb80 drivers/usb/core/message.c:2170 [<ffffffff82d2576c>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238 [<ffffffff82d16ffc>] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293 [<ffffffff82712f0d>] call_driver_probe drivers/base/dd.c:560 [inline] [<ffffffff82712f0d>] really_probe+0x12d/0x390 drivers/base/dd.c:639 [<ffffffff8271322f>] __driver_probe_device+0xbf/0x140 drivers/base/dd.c:778 Fix this bug by rewriting the error handling code in ufx_usb_probe.
References
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/video/fbdev/smscufx.c"
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          ],
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          "vendor": "Linux",
          "versions": [
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              "version": "6.1.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.2",
              "versionType": "original_commit_for_fix"
            }
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      ],
      "cpeApplicability": [
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          "nodes": [
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: smscufx: fix error handling code in ufx_usb_probe\n\nThe current error handling code in ufx_usb_probe have many unmatching\nissues, e.g., missing ufx_free_usb_list, destroy_modedb label should\nonly include framebuffer_release, fb_dealloc_cmap only matches\nfb_alloc_cmap.\n\nMy local syzkaller reports a memory leak bug:\n\nmemory leak in ufx_usb_probe\n\nBUG: memory leak\nunreferenced object 0xffff88802f879580 (size 128):\n  comm \"kworker/0:7\", pid 17416, jiffies 4295067474 (age 46.710s)\n  hex dump (first 32 bytes):\n    80 21 7c 2e 80 88 ff ff 18 d0 d0 0c 80 88 ff ff  .!|.............\n    00 d0 d0 0c 80 88 ff ff e0 ff ff ff 0f 00 00 00  ................\n  backtrace:\n    [\u003cffffffff814c99a0\u003e] kmalloc_trace+0x20/0x90 mm/slab_common.c:1045\n    [\u003cffffffff824d219c\u003e] kmalloc include/linux/slab.h:553 [inline]\n    [\u003cffffffff824d219c\u003e] kzalloc include/linux/slab.h:689 [inline]\n    [\u003cffffffff824d219c\u003e] ufx_alloc_urb_list drivers/video/fbdev/smscufx.c:1873 [inline]\n    [\u003cffffffff824d219c\u003e] ufx_usb_probe+0x11c/0x15a0 drivers/video/fbdev/smscufx.c:1655\n    [\u003cffffffff82d17927\u003e] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396\n    [\u003cffffffff82712f0d\u003e] call_driver_probe drivers/base/dd.c:560 [inline]\n    [\u003cffffffff82712f0d\u003e] really_probe+0x12d/0x390 drivers/base/dd.c:639\n    [\u003cffffffff8271322f\u003e] __driver_probe_device+0xbf/0x140 drivers/base/dd.c:778\n    [\u003cffffffff827132da\u003e] driver_probe_device+0x2a/0x120 drivers/base/dd.c:808\n    [\u003cffffffff82713c27\u003e] __device_attach_driver+0xf7/0x150 drivers/base/dd.c:936\n    [\u003cffffffff82710137\u003e] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:427\n    [\u003cffffffff827136b5\u003e] __device_attach+0x105/0x2d0 drivers/base/dd.c:1008\n    [\u003cffffffff82711d36\u003e] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:487\n    [\u003cffffffff8270e242\u003e] device_add+0x642/0xdc0 drivers/base/core.c:3517\n    [\u003cffffffff82d14d5f\u003e] usb_set_configuration+0x8ef/0xb80 drivers/usb/core/message.c:2170\n    [\u003cffffffff82d2576c\u003e] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238\n    [\u003cffffffff82d16ffc\u003e] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293\n    [\u003cffffffff82712f0d\u003e] call_driver_probe drivers/base/dd.c:560 [inline]\n    [\u003cffffffff82712f0d\u003e] really_probe+0x12d/0x390 drivers/base/dd.c:639\n    [\u003cffffffff8271322f\u003e] __driver_probe_device+0xbf/0x140 drivers/base/dd.c:778\n\nFix this bug by rewriting the error handling code in ufx_usb_probe."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T08:44:23.744Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/3b3d3127f5b4291ae4caaf50f7b66089ad600480"
        },
        {
          "url": "https://git.kernel.org/stable/c/3931014367ef31d26af65386a4ca496f50f0cfdf"
        },
        {
          "url": "https://git.kernel.org/stable/c/64fa364ad3245508d393e16ed4886f92d7eb423c"
        },
        {
          "url": "https://git.kernel.org/stable/c/1b4c08844628dfc8d72d3f51b657f2a5e63b7b4b"
        },
        {
          "url": "https://git.kernel.org/stable/c/b76449ee75e21acfe9fa4c653d8598f191ed7d68"
        }
      ],
      "title": "fbdev: smscufx: fix error handling code in ufx_usb_probe",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49741",
    "datePublished": "2025-03-27T16:42:52.994Z",
    "dateReserved": "2025-03-27T16:39:17.986Z",
    "dateUpdated": "2025-05-04T08:44:23.744Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49741\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-03-27T17:15:38.720\",\"lastModified\":\"2025-04-14T20:26:41.627\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nfbdev: smscufx: fix error handling code in ufx_usb_probe\\n\\nThe current error handling code in ufx_usb_probe have many unmatching\\nissues, e.g., missing ufx_free_usb_list, destroy_modedb label should\\nonly include framebuffer_release, fb_dealloc_cmap only matches\\nfb_alloc_cmap.\\n\\nMy local syzkaller reports a memory leak bug:\\n\\nmemory leak in ufx_usb_probe\\n\\nBUG: memory leak\\nunreferenced object 0xffff88802f879580 (size 128):\\n  comm \\\"kworker/0:7\\\", pid 17416, jiffies 4295067474 (age 46.710s)\\n  hex dump (first 32 bytes):\\n    80 21 7c 2e 80 88 ff ff 18 d0 d0 0c 80 88 ff ff  .!|.............\\n    00 d0 d0 0c 80 88 ff ff e0 ff ff ff 0f 00 00 00  ................\\n  backtrace:\\n    [\u003cffffffff814c99a0\u003e] kmalloc_trace+0x20/0x90 mm/slab_common.c:1045\\n    [\u003cffffffff824d219c\u003e] kmalloc include/linux/slab.h:553 [inline]\\n    [\u003cffffffff824d219c\u003e] kzalloc include/linux/slab.h:689 [inline]\\n    [\u003cffffffff824d219c\u003e] ufx_alloc_urb_list drivers/video/fbdev/smscufx.c:1873 [inline]\\n    [\u003cffffffff824d219c\u003e] ufx_usb_probe+0x11c/0x15a0 drivers/video/fbdev/smscufx.c:1655\\n    [\u003cffffffff82d17927\u003e] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396\\n    [\u003cffffffff82712f0d\u003e] call_driver_probe drivers/base/dd.c:560 [inline]\\n    [\u003cffffffff82712f0d\u003e] really_probe+0x12d/0x390 drivers/base/dd.c:639\\n    [\u003cffffffff8271322f\u003e] __driver_probe_device+0xbf/0x140 drivers/base/dd.c:778\\n    [\u003cffffffff827132da\u003e] driver_probe_device+0x2a/0x120 drivers/base/dd.c:808\\n    [\u003cffffffff82713c27\u003e] __device_attach_driver+0xf7/0x150 drivers/base/dd.c:936\\n    [\u003cffffffff82710137\u003e] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:427\\n    [\u003cffffffff827136b5\u003e] __device_attach+0x105/0x2d0 drivers/base/dd.c:1008\\n    [\u003cffffffff82711d36\u003e] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:487\\n    [\u003cffffffff8270e242\u003e] device_add+0x642/0xdc0 drivers/base/core.c:3517\\n    [\u003cffffffff82d14d5f\u003e] usb_set_configuration+0x8ef/0xb80 drivers/usb/core/message.c:2170\\n    [\u003cffffffff82d2576c\u003e] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238\\n    [\u003cffffffff82d16ffc\u003e] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293\\n    [\u003cffffffff82712f0d\u003e] call_driver_probe drivers/base/dd.c:560 [inline]\\n    [\u003cffffffff82712f0d\u003e] really_probe+0x12d/0x390 drivers/base/dd.c:639\\n    [\u003cffffffff8271322f\u003e] __driver_probe_device+0xbf/0x140 drivers/base/dd.c:778\\n\\nFix this bug by rewriting the error handling code in ufx_usb_probe.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: fbdev: smscufx: corrige el c\u00f3digo de gesti\u00f3n de errores en ufx_usb_probe El c\u00f3digo de manejo de errores actual en ufx_usb_probe tiene muchos problemas que no coinciden, por ejemplo, falta ufx_free_usb_list, la etiqueta destroy_modedb solo debe incluir framebuffer_release, fb_dealloc_cmap solo coincide con fb_alloc_cmap. Mi syzkaller local informa de un error de p\u00e9rdida de memoria: p\u00e9rdida de memoria en ufx_usb_probe ERROR: p\u00e9rdida de memoria objeto no referenciado 0xffff88802f879580 (tama\u00f1o 128): comm \\\"kworker/0:7\\\", pid 17416, jiffies 4295067474 (edad 46.710s) volcado hexadecimal (primeros 32 bytes): 80 21 7c 2e 80 88 ff ff 18 d0 d0 0c 80 88 ff ff .!|............. 00 d0 d0 0c 80 88 ff ff e0 ff ff ff 0f 00 00 00 ................ backtrace: [] kmalloc_trace+0x20/0x90 mm/slab_common.c:1045 [] kmalloc include/linux/slab.h:553 [en l\u00ednea] [] kzalloc include/linux/slab.h:689 [en l\u00ednea] [] ufx_alloc_urb_list drivers/video/fbdev/smscufx.c:1873 [en l\u00ednea] [] ufx_usb_probe+0x11c/0x15a0 drivers/video/fbdev/smscufx.c:1655 [] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396 [] sonda_de_controlador_de_llamada controladores/base/dd.c:560 [en l\u00ednea] [] sonda_realmente+0x12d/0x390 controladores/base/dd.c:639 [] dispositivo_sonda_de_controlador+0xbf/0x140 controladores/base/dd.c:778 [] dispositivo_sonda_de_controlador+0x2a/0x120 controladores/base/dd.c:808 [] controlador_adjunto_de_dispositivo+0xf7/0x150 controladores/base/dd.c:936 [] bus_para_cada_unidad+0xb7/0x100 controladores/base/bus.c:427 [] __adjunto_dispositivo+0x105/0x2d0 controladores/base/dd.c:1008 [] dispositivo_sonda_bus+0xc6/0xe0 controladores/base/bus.c:487 [] adici\u00f3n_dispositivo+0x642/0xdc0 controladores/base/n\u00facleo.c:3517 [] configuraci\u00f3n_establecida_usb+0x8ef/0xb80 controladores/usb/n\u00facleo/mensaje.c:2170 [] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238 [] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293 [] call_driver_probe drivers/base/dd.c:560 [en l\u00ednea] [] really_probe+0x12d/0x390 drivers/base/dd.c:639 [] __driver_probe_device+0xbf/0x140 drivers/base/dd.c:778 Corrija este error reescribiendo el c\u00f3digo de gesti\u00f3n de errores en ufx_usb_probe.\"}],\"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-401\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"5.4.232\",\"matchCriteriaId\":\"B50AC354-4651-4CDE-8EA9-58A9A917F725\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.168\",\"matchCriteriaId\":\"12258A3F-04BD-49C9-9C6B-D3C1945E8910\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.93\",\"matchCriteriaId\":\"98FAC10E-42A0-4372-B1A0-A49CF672890E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.11\",\"matchCriteriaId\":\"535D03F4-DA02-49FE-934E-668827E6407B\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1b4c08844628dfc8d72d3f51b657f2a5e63b7b4b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3931014367ef31d26af65386a4ca496f50f0cfdf\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3b3d3127f5b4291ae4caaf50f7b66089ad600480\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/64fa364ad3245508d393e16ed4886f92d7eb423c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b76449ee75e21acfe9fa4c653d8598f191ed7d68\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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