CVE-2022-50151 (GCVE-0-2022-50151)

Vulnerability from cvelistv5 – Published: 2025-06-18 11:03 – Updated: 2026-05-11 19:13
VLAI?
Title
usb: cdns3: fix random warning message when driver load
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: cdns3: fix random warning message when driver load Warning log: [ 4.141392] Unexpected gfp: 0x4 (GFP_DMA32). Fixing up to gfp: 0xa20 (GFP_ATOMIC). Fix your code! [ 4.150340] CPU: 1 PID: 175 Comm: 1-0050 Not tainted 5.15.5-00039-g2fd9ae1b568c #20 [ 4.158010] Hardware name: Freescale i.MX8QXP MEK (DT) [ 4.163155] Call trace: [ 4.165600] dump_backtrace+0x0/0x1b0 [ 4.169286] show_stack+0x18/0x68 [ 4.172611] dump_stack_lvl+0x68/0x84 [ 4.176286] dump_stack+0x18/0x34 [ 4.179613] kmalloc_fix_flags+0x60/0x88 [ 4.183550] new_slab+0x334/0x370 [ 4.186878] ___slab_alloc.part.108+0x4d4/0x748 [ 4.191419] __slab_alloc.isra.109+0x30/0x78 [ 4.195702] kmem_cache_alloc+0x40c/0x420 [ 4.199725] dma_pool_alloc+0xac/0x1f8 [ 4.203486] cdns3_allocate_trb_pool+0xb4/0xd0 pool_alloc_page(struct dma_pool *pool, gfp_t mem_flags) { ... page = kmalloc(sizeof(*page), mem_flags); page->vaddr = dma_alloc_coherent(pool->dev, pool->allocation, &page->dma, mem_flags); ... } kmalloc was called with mem_flags, which is passed down in cdns3_allocate_trb_pool() and have GFP_DMA32 flags. kmall_fix_flags() report warning. GFP_DMA32 is not useful at all. dma_alloc_coherent() will handle DMA memory region correctly by pool->dev. GFP_DMA32 can be removed safely.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 8bc1901ca7b07d864fca11461b3875b31f949765 , < 8e142744f0e96abc69ccd99e6d6c7eb662267f21 (git)
Affected: 8bc1901ca7b07d864fca11461b3875b31f949765 , < 960a8a35a6027a08c4b511435bf59609b5d5e5cd (git)
Affected: 8bc1901ca7b07d864fca11461b3875b31f949765 , < 8659ab3d936fcf0084676f98b75b317017aa8f82 (git)
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Linux Linux Affected: 5.3
Unaffected: 0 , < 5.3 (semver)
Unaffected: 5.15.63 , ≤ 5.15.* (semver)
Unaffected: 5.19.2 , ≤ 5.19.* (semver)
Unaffected: 6.0 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/cdns3/cdns3-gadget.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "8e142744f0e96abc69ccd99e6d6c7eb662267f21",
              "status": "affected",
              "version": "8bc1901ca7b07d864fca11461b3875b31f949765",
              "versionType": "git"
            },
            {
              "lessThan": "960a8a35a6027a08c4b511435bf59609b5d5e5cd",
              "status": "affected",
              "version": "8bc1901ca7b07d864fca11461b3875b31f949765",
              "versionType": "git"
            },
            {
              "lessThan": "8659ab3d936fcf0084676f98b75b317017aa8f82",
              "status": "affected",
              "version": "8bc1901ca7b07d864fca11461b3875b31f949765",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/cdns3/cdns3-gadget.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.3"
            },
            {
              "lessThan": "5.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.63",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.63",
                  "versionStartIncluding": "5.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19.2",
                  "versionStartIncluding": "5.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0",
                  "versionStartIncluding": "5.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: cdns3: fix random warning message when driver load\n\nWarning log:\n[    4.141392] Unexpected gfp: 0x4 (GFP_DMA32). Fixing up to gfp: 0xa20 (GFP_ATOMIC). Fix your code!\n[    4.150340] CPU: 1 PID: 175 Comm: 1-0050 Not tainted 5.15.5-00039-g2fd9ae1b568c #20\n[    4.158010] Hardware name: Freescale i.MX8QXP MEK (DT)\n[    4.163155] Call trace:\n[    4.165600]  dump_backtrace+0x0/0x1b0\n[    4.169286]  show_stack+0x18/0x68\n[    4.172611]  dump_stack_lvl+0x68/0x84\n[    4.176286]  dump_stack+0x18/0x34\n[    4.179613]  kmalloc_fix_flags+0x60/0x88\n[    4.183550]  new_slab+0x334/0x370\n[    4.186878]  ___slab_alloc.part.108+0x4d4/0x748\n[    4.191419]  __slab_alloc.isra.109+0x30/0x78\n[    4.195702]  kmem_cache_alloc+0x40c/0x420\n[    4.199725]  dma_pool_alloc+0xac/0x1f8\n[    4.203486]  cdns3_allocate_trb_pool+0xb4/0xd0\n\npool_alloc_page(struct dma_pool *pool, gfp_t mem_flags)\n{\n\t...\n\tpage = kmalloc(sizeof(*page), mem_flags);\n\tpage-\u003evaddr = dma_alloc_coherent(pool-\u003edev, pool-\u003eallocation,\n\t\t\t\t\t \u0026page-\u003edma, mem_flags);\n\t...\n}\n\nkmalloc was called with mem_flags, which is passed down in\ncdns3_allocate_trb_pool() and have GFP_DMA32 flags.\nkmall_fix_flags() report warning.\n\nGFP_DMA32 is not useful at all. dma_alloc_coherent() will handle\nDMA memory region correctly by pool-\u003edev. GFP_DMA32 can be removed\nsafely."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:13:47.771Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/8e142744f0e96abc69ccd99e6d6c7eb662267f21"
        },
        {
          "url": "https://git.kernel.org/stable/c/960a8a35a6027a08c4b511435bf59609b5d5e5cd"
        },
        {
          "url": "https://git.kernel.org/stable/c/8659ab3d936fcf0084676f98b75b317017aa8f82"
        }
      ],
      "title": "usb: cdns3: fix random warning message when driver load",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50151",
    "datePublished": "2025-06-18T11:03:10.569Z",
    "dateReserved": "2025-06-18T10:57:27.425Z",
    "dateUpdated": "2026-05-11T19:13:47.771Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2022-50151",
      "date": "2026-05-20",
      "epss": "0.00052",
      "percentile": "0.16138"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-50151\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-06-18T11:15:45.190\",\"lastModified\":\"2025-11-20T21:36:06.367\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nusb: cdns3: fix random warning message when driver load\\n\\nWarning log:\\n[    4.141392] Unexpected gfp: 0x4 (GFP_DMA32). Fixing up to gfp: 0xa20 (GFP_ATOMIC). Fix your code!\\n[    4.150340] CPU: 1 PID: 175 Comm: 1-0050 Not tainted 5.15.5-00039-g2fd9ae1b568c #20\\n[    4.158010] Hardware name: Freescale i.MX8QXP MEK (DT)\\n[    4.163155] Call trace:\\n[    4.165600]  dump_backtrace+0x0/0x1b0\\n[    4.169286]  show_stack+0x18/0x68\\n[    4.172611]  dump_stack_lvl+0x68/0x84\\n[    4.176286]  dump_stack+0x18/0x34\\n[    4.179613]  kmalloc_fix_flags+0x60/0x88\\n[    4.183550]  new_slab+0x334/0x370\\n[    4.186878]  ___slab_alloc.part.108+0x4d4/0x748\\n[    4.191419]  __slab_alloc.isra.109+0x30/0x78\\n[    4.195702]  kmem_cache_alloc+0x40c/0x420\\n[    4.199725]  dma_pool_alloc+0xac/0x1f8\\n[    4.203486]  cdns3_allocate_trb_pool+0xb4/0xd0\\n\\npool_alloc_page(struct dma_pool *pool, gfp_t mem_flags)\\n{\\n\\t...\\n\\tpage = kmalloc(sizeof(*page), mem_flags);\\n\\tpage-\u003evaddr = dma_alloc_coherent(pool-\u003edev, pool-\u003eallocation,\\n\\t\\t\\t\\t\\t \u0026page-\u003edma, mem_flags);\\n\\t...\\n}\\n\\nkmalloc was called with mem_flags, which is passed down in\\ncdns3_allocate_trb_pool() and have GFP_DMA32 flags.\\nkmall_fix_flags() report warning.\\n\\nGFP_DMA32 is not useful at all. dma_alloc_coherent() will handle\\nDMA memory region correctly by pool-\u003edev. GFP_DMA32 can be removed\\nsafely.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: cdns3: se corrige un mensaje de advertencia aleatorio al cargar el controlador. Registro de advertencias: [4.141392] GFP inesperado: 0x4 (GFP_DMA32). Se est\u00e1 solucionando hasta gfp: 0xa20 (GFP_ATOMIC). \u00a1Corrige tu c\u00f3digo! [ 4.150340] CPU: 1 PID: 175 Comm: 1-0050 No contaminado 5.15.5-00039-g2fd9ae1b568c #20 [ 4.158010] Nombre del hardware: Freescale i.MX8QXP MEK (DT) [ 4.163155] Rastreo de llamadas: [ 4.165600] dump_backtrace+0x0/0x1b0 [ 4.169286] show_stack+0x18/0x68 [ 4.172611] dump_stack_lvl+0x68/0x84 [ 4.176286] dump_stack+0x18/0x34 [ 4.179613] kmalloc_fix_flags+0x60/0x88 [ 4.183550] new_slab+0x334/0x370 [ 4.186878] ___slab_alloc.part.108+0x4d4/0x748 [ 4.191419] __slab_alloc.isra.109+0x30/0x78 [ 4.195702] kmem_cache_alloc+0x40c/0x420 [ 4.199725] dma_pool_alloc+0xac/0x1f8 [ 4.203486] cdns3_allocate_trb_pool+0xb4/0xd0 pool_alloc_page(struct dma_pool *pool, gfp_t mem_flags) { ... page = kmalloc(sizeof(*page), mem_flags); page-\u0026gt;vaddr = dma_alloc_coherent(pool-\u0026gt;dev, pool-\u0026gt;allocation, \u0026amp;page-\u0026gt;dma, mem_flags); ... } kmalloc se llam\u00f3 con mem_flags, que se transmite en cdns3_allocate_trb_pool() y tiene indicadores GFP_DMA32. kmall_fix_flags() informa una advertencia. GFP_DMA32 no es \u00fatil. dma_alloc_coherent() gestionar\u00e1 correctamente la regi\u00f3n de memoria DMA mediante pool-\u0026gt;dev. GFP_DMA32 se puede eliminar de forma segura.\"}],\"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:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.3\",\"versionEndExcluding\":\"5.15.63\",\"matchCriteriaId\":\"A2AB1EA2-D627-490F-A831-7710F8F6920E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"5.19.2\",\"matchCriteriaId\":\"76BFD0D7-0432-4749-A21D-9EE275AFCB53\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/8659ab3d936fcf0084676f98b75b317017aa8f82\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8e142744f0e96abc69ccd99e6d6c7eb662267f21\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/960a8a35a6027a08c4b511435bf59609b5d5e5cd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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