fkie_cve-2022-49801
Vulnerability from fkie_nvd
Published
2025-05-01 15:16
Modified
2025-11-07 19:34
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: tracing: Fix memory leak in tracing_read_pipe() kmemleak reports this issue: unreferenced object 0xffff888105a18900 (size 128): comm "test_progs", pid 18933, jiffies 4336275356 (age 22801.766s) hex dump (first 32 bytes): 25 73 00 90 81 88 ff ff 26 05 00 00 42 01 58 04 %s......&...B.X. 03 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000560143a1>] __kmalloc_node_track_caller+0x4a/0x140 [<000000006af00822>] krealloc+0x8d/0xf0 [<00000000c309be6a>] trace_iter_expand_format+0x99/0x150 [<000000005a53bdb6>] trace_check_vprintf+0x1e0/0x11d0 [<0000000065629d9d>] trace_event_printf+0xb6/0xf0 [<000000009a690dc7>] trace_raw_output_bpf_trace_printk+0x89/0xc0 [<00000000d22db172>] print_trace_line+0x73c/0x1480 [<00000000cdba76ba>] tracing_read_pipe+0x45c/0x9f0 [<0000000015b58459>] vfs_read+0x17b/0x7c0 [<000000004aeee8ed>] ksys_read+0xed/0x1c0 [<0000000063d3d898>] do_syscall_64+0x3b/0x90 [<00000000a06dda7f>] entry_SYSCALL_64_after_hwframe+0x63/0xcd iter->fmt alloced in tracing_read_pipe() -> .. ->trace_iter_expand_format(), but not freed, to fix, add free in tracing_release_pipe()
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2c21ee020ce43d744ecd7f3e9bddfcaafef270cePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/649e72070cbbb8600eb823833e4748f5a0815116Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a7d3f8f33c113478737bc61bb32ec5f9a987da7dPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.1
linux linux_kernel 6.1
linux linux_kernel 6.1
linux linux_kernel 6.1
linux linux_kernel 6.1


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "6411F9A9-08F6-4422-86BF-B6B5AEE55AF1",
              "versionEndExcluding": "5.11",
              "versionStartIncluding": "5.10.190",
              "vulnerable": true
            },
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              "matchCriteriaId": "88C37172-FB0B-4424-9DCA-F12A64825F4F",
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              "versionStartIncluding": "5.12",
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              "matchCriteriaId": "64F9ADD1-3ADB-4D66-A00F-4A83010B05F0",
              "versionEndExcluding": "6.0.10",
              "versionStartIncluding": "5.16",
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            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "E7E331DA-1FB0-4DEC-91AC-7DA69D461C11",
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              "matchCriteriaId": "17F0B248-42CF-4AE6-A469-BB1BAE7F4705",
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              "vulnerable": true
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              "matchCriteriaId": "1C6E00FE-5FB9-4D20-A1A1-5A32128F9B76",
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              "matchCriteriaId": "35B26BE4-43A6-4A36-A7F6-5B3F572D9186",
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            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix memory leak in tracing_read_pipe()\n\nkmemleak reports this issue:\n\nunreferenced object 0xffff888105a18900 (size 128):\n  comm \"test_progs\", pid 18933, jiffies 4336275356 (age 22801.766s)\n  hex dump (first 32 bytes):\n    25 73 00 90 81 88 ff ff 26 05 00 00 42 01 58 04  %s......\u0026...B.X.\n    03 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00  ................\n  backtrace:\n    [\u003c00000000560143a1\u003e] __kmalloc_node_track_caller+0x4a/0x140\n    [\u003c000000006af00822\u003e] krealloc+0x8d/0xf0\n    [\u003c00000000c309be6a\u003e] trace_iter_expand_format+0x99/0x150\n    [\u003c000000005a53bdb6\u003e] trace_check_vprintf+0x1e0/0x11d0\n    [\u003c0000000065629d9d\u003e] trace_event_printf+0xb6/0xf0\n    [\u003c000000009a690dc7\u003e] trace_raw_output_bpf_trace_printk+0x89/0xc0\n    [\u003c00000000d22db172\u003e] print_trace_line+0x73c/0x1480\n    [\u003c00000000cdba76ba\u003e] tracing_read_pipe+0x45c/0x9f0\n    [\u003c0000000015b58459\u003e] vfs_read+0x17b/0x7c0\n    [\u003c000000004aeee8ed\u003e] ksys_read+0xed/0x1c0\n    [\u003c0000000063d3d898\u003e] do_syscall_64+0x3b/0x90\n    [\u003c00000000a06dda7f\u003e] entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\niter-\u003efmt alloced in\n  tracing_read_pipe() -\u003e .. -\u003etrace_iter_expand_format(), but not\nfreed, to fix, add free in tracing_release_pipe()"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tracing: Fix memory leakage in tracing_read_pipe() kmemleak informa de este problema: unreferenced object 0xffff888105a18900 (size 128): comm \"test_progs\", pid 18933, jiffies 4336275356 (age 22801.766s) hex dump (first 32 bytes): 25 73 00 90 81 88 ff ff 26 05 00 00 42 01 58 04 %s......\u0026amp;...BX 03 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [\u0026lt;00000000560143a1\u0026gt;] __kmalloc_nodo_rastreador_llamador+0x4a/0x140 [\u0026lt;000000006af00822\u0026gt;] krealloc+0x8d/0xf0 [\u0026lt;00000000c309be6a\u0026gt;] trace_iter_expand_format+0x99/0x150 [\u0026lt;000000005a53bdb6\u0026gt;] trace_check_vprintf+0x1e0/0x11d0 [\u0026lt;0000000065629d9d\u0026gt;] trace_event_printf+0xb6/0xf0 [\u0026lt;000000009a690dc7\u0026gt;] trace_raw_output_bpf_trace_printk+0x89/0xc0 [\u0026lt;00000000d22db172\u0026gt;] imprimir_l\u00ednea_de_seguimiento+0x73c/0x1480 [\u0026lt;00000000cdba76ba\u0026gt;] conducto_de_lectura_de_seguimiento+0x45c/0x9f0 [\u0026lt;0000000015b58459\u0026gt;] lectura_vfs+0x17b/0x7c0 [\u0026lt;000000004aeee8ed\u0026gt;] lectura_ksys+0xed/0x1c0 [\u0026lt;0000000063d3d898\u0026gt;] hacer_llamada_al_sistema_64+0x3b/0x90 [\u0026lt;00000000a06dda7f\u0026gt;] entrada_SYSCALL_64_despu\u00e9s_de_hwframe+0x63/0xcd iter-\u0026gt;fmt asignado en conducto_de_lectura_de_seguimiento() -\u0026gt; .. -\u0026gt;trace_iter_expand_format(), pero no se libera, para solucionarlo, agregue free en tracing_release_pipe()"
    }
  ],
  "id": "CVE-2022-49801",
  "lastModified": "2025-11-07T19:34:49.877",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-05-01T15:16:03.407",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/2c21ee020ce43d744ecd7f3e9bddfcaafef270ce"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/649e72070cbbb8600eb823833e4748f5a0815116"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/a7d3f8f33c113478737bc61bb32ec5f9a987da7d"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-401"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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