CVE-2022-50500 (GCVE-0-2022-50500)
Vulnerability from cvelistv5
Published
2025-10-04 15:43
Modified
2025-10-04 15:43
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: netdevsim: fix memory leak in nsim_drv_probe() when nsim_dev_resources_register() failed If some items in nsim_dev_resources_register() fail, memory leak will occur. The following is the memory leak information. unreferenced object 0xffff888074c02600 (size 128): comm "echo", pid 8159, jiffies 4294945184 (age 493.530s) hex dump (first 32 bytes): 40 47 ea 89 ff ff ff ff 01 00 00 00 00 00 00 00 @G.............. ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ backtrace: [<0000000011a31c98>] kmalloc_trace+0x22/0x60 [<0000000027384c69>] devl_resource_register+0x144/0x4e0 [<00000000a16db248>] nsim_drv_probe+0x37a/0x1260 [<000000007d1f448c>] really_probe+0x20b/0xb10 [<00000000c416848a>] __driver_probe_device+0x1b3/0x4a0 [<00000000077e0351>] driver_probe_device+0x49/0x140 [<0000000054f2465a>] __device_attach_driver+0x18c/0x2a0 [<000000008538f359>] bus_for_each_drv+0x151/0x1d0 [<0000000038e09747>] __device_attach+0x1c9/0x4e0 [<00000000dd86e533>] bus_probe_device+0x1d5/0x280 [<00000000839bea35>] device_add+0xae0/0x1cb0 [<000000009c2abf46>] new_device_store+0x3b6/0x5f0 [<00000000fb823d7f>] bus_attr_store+0x72/0xa0 [<000000007acc4295>] sysfs_kf_write+0x106/0x160 [<000000005f50cb4d>] kernfs_fop_write_iter+0x3a8/0x5a0 [<0000000075eb41bf>] vfs_write+0x8f0/0xc80
References
Impacted products
Vendor Product Version
Linux Linux Version: 37923ed6b8cea94d7d76038e2f72c57a0b45daab
Version: 37923ed6b8cea94d7d76038e2f72c57a0b45daab
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/netdevsim/dev.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "7c4957fe40e2a628b7cceaf4c9bfb5b701774d05",
              "status": "affected",
              "version": "37923ed6b8cea94d7d76038e2f72c57a0b45daab",
              "versionType": "git"
            },
            {
              "lessThan": "6b1da9f7126f05e857da6db24c6a04aa7974d644",
              "status": "affected",
              "version": "37923ed6b8cea94d7d76038e2f72c57a0b45daab",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/netdevsim/dev.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.17"
            },
            {
              "lessThan": "4.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.7",
                  "versionStartIncluding": "4.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1",
                  "versionStartIncluding": "4.17",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetdevsim: fix memory leak in nsim_drv_probe() when nsim_dev_resources_register() failed\n\nIf some items in nsim_dev_resources_register() fail, memory leak will\noccur. The following is the memory leak information.\n\nunreferenced object 0xffff888074c02600 (size 128):\n  comm \"echo\", pid 8159, jiffies 4294945184 (age 493.530s)\n  hex dump (first 32 bytes):\n    40 47 ea 89 ff ff ff ff 01 00 00 00 00 00 00 00  @G..............\n    ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff  ................\n  backtrace:\n    [\u003c0000000011a31c98\u003e] kmalloc_trace+0x22/0x60\n    [\u003c0000000027384c69\u003e] devl_resource_register+0x144/0x4e0\n    [\u003c00000000a16db248\u003e] nsim_drv_probe+0x37a/0x1260\n    [\u003c000000007d1f448c\u003e] really_probe+0x20b/0xb10\n    [\u003c00000000c416848a\u003e] __driver_probe_device+0x1b3/0x4a0\n    [\u003c00000000077e0351\u003e] driver_probe_device+0x49/0x140\n    [\u003c0000000054f2465a\u003e] __device_attach_driver+0x18c/0x2a0\n    [\u003c000000008538f359\u003e] bus_for_each_drv+0x151/0x1d0\n    [\u003c0000000038e09747\u003e] __device_attach+0x1c9/0x4e0\n    [\u003c00000000dd86e533\u003e] bus_probe_device+0x1d5/0x280\n    [\u003c00000000839bea35\u003e] device_add+0xae0/0x1cb0\n    [\u003c000000009c2abf46\u003e] new_device_store+0x3b6/0x5f0\n    [\u003c00000000fb823d7f\u003e] bus_attr_store+0x72/0xa0\n    [\u003c000000007acc4295\u003e] sysfs_kf_write+0x106/0x160\n    [\u003c000000005f50cb4d\u003e] kernfs_fop_write_iter+0x3a8/0x5a0\n    [\u003c0000000075eb41bf\u003e] vfs_write+0x8f0/0xc80"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-04T15:43:50.792Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/7c4957fe40e2a628b7cceaf4c9bfb5b701774d05"
        },
        {
          "url": "https://git.kernel.org/stable/c/6b1da9f7126f05e857da6db24c6a04aa7974d644"
        }
      ],
      "title": "netdevsim: fix memory leak in nsim_drv_probe() when nsim_dev_resources_register() failed",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50500",
    "datePublished": "2025-10-04T15:43:50.792Z",
    "dateReserved": "2025-10-04T15:39:19.464Z",
    "dateUpdated": "2025-10-04T15:43:50.792Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-50500\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-10-04T16:15:47.153\",\"lastModified\":\"2025-10-06T14:56:21.733\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnetdevsim: fix memory leak in nsim_drv_probe() when nsim_dev_resources_register() failed\\n\\nIf some items in nsim_dev_resources_register() fail, memory leak will\\noccur. The following is the memory leak information.\\n\\nunreferenced object 0xffff888074c02600 (size 128):\\n  comm \\\"echo\\\", pid 8159, jiffies 4294945184 (age 493.530s)\\n  hex dump (first 32 bytes):\\n    40 47 ea 89 ff ff ff ff 01 00 00 00 00 00 00 00  @G..............\\n    ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff  ................\\n  backtrace:\\n    [\u003c0000000011a31c98\u003e] kmalloc_trace+0x22/0x60\\n    [\u003c0000000027384c69\u003e] devl_resource_register+0x144/0x4e0\\n    [\u003c00000000a16db248\u003e] nsim_drv_probe+0x37a/0x1260\\n    [\u003c000000007d1f448c\u003e] really_probe+0x20b/0xb10\\n    [\u003c00000000c416848a\u003e] __driver_probe_device+0x1b3/0x4a0\\n    [\u003c00000000077e0351\u003e] driver_probe_device+0x49/0x140\\n    [\u003c0000000054f2465a\u003e] __device_attach_driver+0x18c/0x2a0\\n    [\u003c000000008538f359\u003e] bus_for_each_drv+0x151/0x1d0\\n    [\u003c0000000038e09747\u003e] __device_attach+0x1c9/0x4e0\\n    [\u003c00000000dd86e533\u003e] bus_probe_device+0x1d5/0x280\\n    [\u003c00000000839bea35\u003e] device_add+0xae0/0x1cb0\\n    [\u003c000000009c2abf46\u003e] new_device_store+0x3b6/0x5f0\\n    [\u003c00000000fb823d7f\u003e] bus_attr_store+0x72/0xa0\\n    [\u003c000000007acc4295\u003e] sysfs_kf_write+0x106/0x160\\n    [\u003c000000005f50cb4d\u003e] kernfs_fop_write_iter+0x3a8/0x5a0\\n    [\u003c0000000075eb41bf\u003e] vfs_write+0x8f0/0xc80\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/6b1da9f7126f05e857da6db24c6a04aa7974d644\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7c4957fe40e2a628b7cceaf4c9bfb5b701774d05\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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