fkie_cve-2022-48755
Vulnerability from fkie_nvd
Published
2024-06-20 12:15
Modified
2025-01-06 21:44
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: powerpc64/bpf: Limit 'ldbrx' to processors compliant with ISA v2.06 Johan reported the below crash with test_bpf on ppc64 e5500: test_bpf: #296 ALU_END_FROM_LE 64: 0x0123456789abcdef -> 0x67452301 jited:1 Oops: Exception in kernel mode, sig: 4 [#1] BE PAGE_SIZE=4K SMP NR_CPUS=24 QEMU e500 Modules linked in: test_bpf(+) CPU: 0 PID: 76 Comm: insmod Not tainted 5.14.0-03771-g98c2059e008a-dirty #1 NIP: 8000000000061c3c LR: 80000000006dea64 CTR: 8000000000061c18 REGS: c0000000032d3420 TRAP: 0700 Not tainted (5.14.0-03771-g98c2059e008a-dirty) MSR: 0000000080089000 <EE,ME> CR: 88002822 XER: 20000000 IRQMASK: 0 <...> NIP [8000000000061c3c] 0x8000000000061c3c LR [80000000006dea64] .__run_one+0x104/0x17c [test_bpf] Call Trace: .__run_one+0x60/0x17c [test_bpf] (unreliable) .test_bpf_init+0x6a8/0xdc8 [test_bpf] .do_one_initcall+0x6c/0x28c .do_init_module+0x68/0x28c .load_module+0x2460/0x2abc .__do_sys_init_module+0x120/0x18c .system_call_exception+0x110/0x1b8 system_call_common+0xf0/0x210 --- interrupt: c00 at 0x101d0acc <...> ---[ end trace 47b2bf19090bb3d0 ]--- Illegal instruction The illegal instruction turned out to be 'ldbrx' emitted for BPF_FROM_[L|B]E, which was only introduced in ISA v2.06. Guard use of the same and implement an alternative approach for older processors.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/129c71829d7f46423d95c19e8d87ce956d4c6e1cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3bfbc00587dc883eaed383558ae512a351c2cd09Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3f5f766d5f7f95a69a630da3544a1a0cee1cdddfPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/aaccfeeee1630b155e8ff0d6c449d3de1ef86e73Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/129c71829d7f46423d95c19e8d87ce956d4c6e1cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/3bfbc00587dc883eaed383558ae512a351c2cd09Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/3f5f766d5f7f95a69a630da3544a1a0cee1cdddfPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/aaccfeeee1630b155e8ff0d6c449d3de1ef86e73Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 5.17


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "60F53B84-60D9-4B4C-ABF2-EBB451BF7D86",
              "versionEndExcluding": "5.10.96",
              "versionStartIncluding": "4.8",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "DF69DD7C-FD57-4914-ABB0-FAEF87B0289D",
              "versionEndExcluding": "5.15.19",
              "versionStartIncluding": "5.11",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "1AD9E77E-B27E-450C-8FD8-B64EC5FB002D",
              "versionEndExcluding": "5.16.5",
              "versionStartIncluding": "5.16",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "7BD5F8D9-54FA-4CB0-B4F0-CB0471FDDB2D",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc64/bpf: Limit \u0027ldbrx\u0027 to processors compliant with ISA v2.06\n\nJohan reported the below crash with test_bpf on ppc64 e5500:\n\n  test_bpf: #296 ALU_END_FROM_LE 64: 0x0123456789abcdef -\u003e 0x67452301 jited:1\n  Oops: Exception in kernel mode, sig: 4 [#1]\n  BE PAGE_SIZE=4K SMP NR_CPUS=24 QEMU e500\n  Modules linked in: test_bpf(+)\n  CPU: 0 PID: 76 Comm: insmod Not tainted 5.14.0-03771-g98c2059e008a-dirty #1\n  NIP:  8000000000061c3c LR: 80000000006dea64 CTR: 8000000000061c18\n  REGS: c0000000032d3420 TRAP: 0700   Not tainted (5.14.0-03771-g98c2059e008a-dirty)\n  MSR:  0000000080089000 \u003cEE,ME\u003e  CR: 88002822  XER: 20000000 IRQMASK: 0\n  \u003c...\u003e\n  NIP [8000000000061c3c] 0x8000000000061c3c\n  LR [80000000006dea64] .__run_one+0x104/0x17c [test_bpf]\n  Call Trace:\n   .__run_one+0x60/0x17c [test_bpf] (unreliable)\n   .test_bpf_init+0x6a8/0xdc8 [test_bpf]\n   .do_one_initcall+0x6c/0x28c\n   .do_init_module+0x68/0x28c\n   .load_module+0x2460/0x2abc\n   .__do_sys_init_module+0x120/0x18c\n   .system_call_exception+0x110/0x1b8\n   system_call_common+0xf0/0x210\n  --- interrupt: c00 at 0x101d0acc\n  \u003c...\u003e\n  ---[ end trace 47b2bf19090bb3d0 ]---\n\n  Illegal instruction\n\nThe illegal instruction turned out to be \u0027ldbrx\u0027 emitted for\nBPF_FROM_[L|B]E, which was only introduced in ISA v2.06. Guard use of\nthe same and implement an alternative approach for older processors."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: powerpc64/bpf: Limite \u0027ldbrx\u0027 a procesadores compatibles con ISA v2.06 Johan inform\u00f3 el siguiente fallo con test_bpf en ppc64 e5500: test_bpf: #296 ALU_END_FROM_LE 64: 0x0123456789abcdef -\u0026gt; 0x67452301 jited:1 Ups: Excepci\u00f3n en modo kernel, sign: 4 [#1] BE PAGE_SIZE=4K SMP NR_CPUS=24 M\u00f3dulos QEMU e500 vinculados en: test_bpf(+) CPU: 0 PID: 76 Comm: insmod Not tainted 5.14.0- 03771-g98c2059e008a-dirty #1 NIP: 8000000000061c3c LR: 80000000006dea64 CTR: 8000000000061c18 REGS: c0000000032d3420 TRAP: 0700 No contaminado (5.14.0-0 3771-g98c2059e008a-dirty) MSR: 0000000080089000  CR: 88002822 XER: 20000000 IRQMASK : 0 \u0026lt;...\u0026gt; NIP [8000000000061c3c] 0x8000000000061c3c LR [80000000006dea64] .__run_one+0x104/0x17c [test_bpf] Seguimiento de llamadas: .__run_one+0x60/0x17c [test_bpf] (no confiable). test_bpf_init+0x6a8/0xdc8 [test_bpf] . do_one_initcall+0x6c/0x28c .do_init_module+0x68/0x28c .load_module+0x2460/0x2abc .__do_sys_init_module+0x120/0x18c .system_call_exception+0x110/0x1b8 system_call_common+0xf0/0x210 --- interrupci\u00f3n : c00 en 0x101d0acc \u0026lt;...\u0026gt; --- [ end trace 47b2bf19090bb3d0 ]--- Instrucci\u00f3n ilegal La instrucci\u00f3n ilegal result\u00f3 ser \u0027ldbrx\u0027 emitida para BPF_FROM_[L|B]E, que solo se introdujo en ISA v2.06. Proteger el uso de los mismos e implementar un enfoque alternativo para procesadores m\u00e1s antiguos."
    }
  ],
  "id": "CVE-2022-48755",
  "lastModified": "2025-01-06T21:44:42.290",
  "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": "2024-06-20T12:15:13.653",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/129c71829d7f46423d95c19e8d87ce956d4c6e1c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/3bfbc00587dc883eaed383558ae512a351c2cd09"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/3f5f766d5f7f95a69a630da3544a1a0cee1cdddf"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/aaccfeeee1630b155e8ff0d6c449d3de1ef86e73"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/129c71829d7f46423d95c19e8d87ce956d4c6e1c"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/3bfbc00587dc883eaed383558ae512a351c2cd09"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/3f5f766d5f7f95a69a630da3544a1a0cee1cdddf"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/aaccfeeee1630b155e8ff0d6c449d3de1ef86e73"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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