CVE-2022-49803 (GCVE-0-2022-49803)
Vulnerability from cvelistv5
Published
2025-05-01 14:09
Modified
2025-05-04 08:45
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: netdevsim: Fix memory leak of nsim_dev->fa_cookie kmemleak reports this issue: unreferenced object 0xffff8881bac872d0 (size 8): comm "sh", pid 58603, jiffies 4481524462 (age 68.065s) hex dump (first 8 bytes): 04 00 00 00 de ad be ef ........ backtrace: [<00000000c80b8577>] __kmalloc+0x49/0x150 [<000000005292b8c6>] nsim_dev_trap_fa_cookie_write+0xc1/0x210 [netdevsim] [<0000000093d78e77>] full_proxy_write+0xf3/0x180 [<000000005a662c16>] vfs_write+0x1c5/0xaf0 [<000000007aabf84a>] ksys_write+0xed/0x1c0 [<000000005f1d2e47>] do_syscall_64+0x3b/0x90 [<000000006001c6ec>] entry_SYSCALL_64_after_hwframe+0x63/0xcd The issue occurs in the following scenarios: nsim_dev_trap_fa_cookie_write() kmalloc() fa_cookie nsim_dev->fa_cookie = fa_cookie .. nsim_drv_remove() The fa_cookie allocked in nsim_dev_trap_fa_cookie_write() is not freed. To fix, add kfree(nsim_dev->fa_cookie) to nsim_drv_remove().
References
Impacted products
Vendor Product Version
Linux Linux Version: d3cbb907ae57fe5da314b51d949b617b538bdeae
Version: d3cbb907ae57fe5da314b51d949b617b538bdeae
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "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": "207edad5717e0a5709ce8467f0eff41c607835c9",
              "status": "affected",
              "version": "d3cbb907ae57fe5da314b51d949b617b538bdeae",
              "versionType": "git"
            },
            {
              "lessThan": "064bc7312bd09a48798418663090be0c776183db",
              "status": "affected",
              "version": "d3cbb907ae57fe5da314b51d949b617b538bdeae",
              "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": "5.7"
            },
            {
              "lessThan": "5.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.10",
              "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": "6.0.10",
                  "versionStartIncluding": "5.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1",
                  "versionStartIncluding": "5.7",
                  "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 of nsim_dev-\u003efa_cookie\n\nkmemleak reports this issue:\n\nunreferenced object 0xffff8881bac872d0 (size 8):\n  comm \"sh\", pid 58603, jiffies 4481524462 (age 68.065s)\n  hex dump (first 8 bytes):\n    04 00 00 00 de ad be ef                          ........\n  backtrace:\n    [\u003c00000000c80b8577\u003e] __kmalloc+0x49/0x150\n    [\u003c000000005292b8c6\u003e] nsim_dev_trap_fa_cookie_write+0xc1/0x210 [netdevsim]\n    [\u003c0000000093d78e77\u003e] full_proxy_write+0xf3/0x180\n    [\u003c000000005a662c16\u003e] vfs_write+0x1c5/0xaf0\n    [\u003c000000007aabf84a\u003e] ksys_write+0xed/0x1c0\n    [\u003c000000005f1d2e47\u003e] do_syscall_64+0x3b/0x90\n    [\u003c000000006001c6ec\u003e] entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nThe issue occurs in the following scenarios:\n\nnsim_dev_trap_fa_cookie_write()\n  kmalloc() fa_cookie\n  nsim_dev-\u003efa_cookie = fa_cookie\n..\nnsim_drv_remove()\n\nThe fa_cookie allocked in nsim_dev_trap_fa_cookie_write() is not freed. To\nfix, add kfree(nsim_dev-\u003efa_cookie) to nsim_drv_remove()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T08:45:40.908Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/207edad5717e0a5709ce8467f0eff41c607835c9"
        },
        {
          "url": "https://git.kernel.org/stable/c/064bc7312bd09a48798418663090be0c776183db"
        }
      ],
      "title": "netdevsim: Fix memory leak of nsim_dev-\u003efa_cookie",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49803",
    "datePublished": "2025-05-01T14:09:30.971Z",
    "dateReserved": "2025-05-01T14:05:17.225Z",
    "dateUpdated": "2025-05-04T08:45:40.908Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49803\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-01T15:16:03.617\",\"lastModified\":\"2025-11-07T19:20:07.703\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnetdevsim: Fix memory leak of nsim_dev-\u003efa_cookie\\n\\nkmemleak reports this issue:\\n\\nunreferenced object 0xffff8881bac872d0 (size 8):\\n  comm \\\"sh\\\", pid 58603, jiffies 4481524462 (age 68.065s)\\n  hex dump (first 8 bytes):\\n    04 00 00 00 de ad be ef                          ........\\n  backtrace:\\n    [\u003c00000000c80b8577\u003e] __kmalloc+0x49/0x150\\n    [\u003c000000005292b8c6\u003e] nsim_dev_trap_fa_cookie_write+0xc1/0x210 [netdevsim]\\n    [\u003c0000000093d78e77\u003e] full_proxy_write+0xf3/0x180\\n    [\u003c000000005a662c16\u003e] vfs_write+0x1c5/0xaf0\\n    [\u003c000000007aabf84a\u003e] ksys_write+0xed/0x1c0\\n    [\u003c000000005f1d2e47\u003e] do_syscall_64+0x3b/0x90\\n    [\u003c000000006001c6ec\u003e] entry_SYSCALL_64_after_hwframe+0x63/0xcd\\n\\nThe issue occurs in the following scenarios:\\n\\nnsim_dev_trap_fa_cookie_write()\\n  kmalloc() fa_cookie\\n  nsim_dev-\u003efa_cookie = fa_cookie\\n..\\nnsim_drv_remove()\\n\\nThe fa_cookie allocked in nsim_dev_trap_fa_cookie_write() is not freed. To\\nfix, add kfree(nsim_dev-\u003efa_cookie) to nsim_drv_remove().\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netdevsim: Se corrige la p\u00e9rdida de memoria de nsim_dev-\u0026gt;fa_cookie. kmemleak informa de este problema: objeto sin referencia 0xffff8881bac872d0 (tama\u00f1o 8): comm \\\"sh\\\", pid 58603, jiffies 4481524462 (edad 68,065 s) volcado hexadecimal (primeros 8 bytes): 04 00 00 00 de ad be ef ........ backtrace: [\u0026lt;00000000c80b8577\u0026gt;] __kmalloc+0x49/0x150 [\u0026lt;000000005292b8c6\u0026gt;] nsim_dev_trap_fa_cookie_write+0xc1/0x210 [netdevsim] [\u0026lt;0000000093d78e77\u0026gt;] escritura de proxy completo+0xf3/0x180 [\u0026lt;000000005a662c16\u0026gt;] escritura de vfs+0x1c5/0xaf0 [\u0026lt;000000007aabf84a\u0026gt;] escritura de ksys+0xed/0x1c0 [\u0026lt;000000005f1d2e47\u0026gt;] llamada al sistema_64+0x3b/0x90 [\u0026lt;000000006001c6ec\u0026gt;] entrada_SYSCALL_64_after_hwframe+0x63/0xcd El problema ocurre en los siguientes escenarios: nsim_dev_trap_fa_cookie_write() kmalloc() fa_cookie nsim_dev-\u0026gt;fa_cookie = fa_cookie .. nsim_drv_remove(): La fa_cookie bloqueada en nsim_dev_trap_fa_cookie_write() no se libera. Para solucionarlo, a\u00f1ada kfree(nsim_dev-\u0026gt;fa_cookie) a nsim_drv_remove().\"}],\"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:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.7\",\"versionEndExcluding\":\"6.0.10\",\"matchCriteriaId\":\"25ED8B13-F842-4669-8961-136863DA8006\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"E7E331DA-1FB0-4DEC-91AC-7DA69D461C11\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"17F0B248-42CF-4AE6-A469-BB1BAE7F4705\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"E2422816-0C14-4B5E-A1E6-A9D776E5C49B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"1C6E00FE-5FB9-4D20-A1A1-5A32128F9B76\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"35B26BE4-43A6-4A36-A7F6-5B3F572D9186\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/064bc7312bd09a48798418663090be0c776183db\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/207edad5717e0a5709ce8467f0eff41c607835c9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.