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CVE-2022-49569 (GCVE-0-2022-49569)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:23 – Updated: 2026-05-11 19:02
VLAI
Title
spi: bcm2835: bcm2835_spi_handle_err(): fix NULL pointer deref for non DMA transfers
Summary
In the Linux kernel, the following vulnerability has been resolved: spi: bcm2835: bcm2835_spi_handle_err(): fix NULL pointer deref for non DMA transfers In case a IRQ based transfer times out the bcm2835_spi_handle_err() function is called. Since commit 1513ceee70f2 ("spi: bcm2835: Drop dma_pending flag") the TX and RX DMA transfers are unconditionally canceled, leading to NULL pointer derefs if ctlr->dma_tx or ctlr->dma_rx are not set. Fix the NULL pointer deref by checking that ctlr->dma_tx and ctlr->dma_rx are valid pointers before accessing them.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-01 19:36 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 1513ceee70f2bd523e025efe0c715328e1a43ffd , < 76668d2a2f367d25ff448e6d7087406af7d7bb2b (git)
Affected: 1513ceee70f2bd523e025efe0c715328e1a43ffd , < 684896e675edd8b669fd3e9f547c5038222d85bc (git)
Affected: 1513ceee70f2bd523e025efe0c715328e1a43ffd , < 58466e05390043d2805685c70f55f3f59711bdf2 (git)
Affected: 1513ceee70f2bd523e025efe0c715328e1a43ffd , < 49ffa473218012e765682343de2052eb4c1f06a7 (git)
Affected: 1513ceee70f2bd523e025efe0c715328e1a43ffd , < 4ceaa684459d414992acbefb4e4c31f2dfc50641 (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.4
Unaffected: 0 , < 5.4 (semver)
Unaffected: 5.4.208 , ≤ 5.4.* (semver)
Unaffected: 5.10.134 , ≤ 5.10.* (semver)
Unaffected: 5.15.58 , ≤ 5.15.* (semver)
Unaffected: 5.18.15 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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                "value": "CWE-476"
              }
            ],
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-29T21:11:57+00:00",
      "cve": "CVE-2022-49569",
      "id": "CVE-2022-49569",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: spi: bcm2835: bcm2835_spi_handle_err(): fix NULL pointer deref for non DMA transfers",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-49569.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-11T02:29:59Z",
      "cve": "CVE-2022-49569",
      "id": "CVE-2022-49569",
      "initial_release_date": "2025-02-27T03:04:52Z",
      "product_status:known_affected": "334",
      "product_status:known_not_affected": "401",
      "product_status:recommended": "223",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-49569",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-49569.json",
      "version": "48"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "cvssV3_1": {
                  "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"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2022-49569",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2025-10-01T19:36:53.132974Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "cweId": "CWE-476",
                    "description": "CWE-476 NULL Pointer Dereference",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2025-10-01T16:50:16.574Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "drivers/spi/spi-bcm2835.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "76668d2a2f367d25ff448e6d7087406af7d7bb2b",
                  "status": "affected",
                  "version": "1513ceee70f2bd523e025efe0c715328e1a43ffd",
                  "versionType": "git"
                },
                {
                  "lessThan": "684896e675edd8b669fd3e9f547c5038222d85bc",
                  "status": "affected",
                  "version": "1513ceee70f2bd523e025efe0c715328e1a43ffd",
                  "versionType": "git"
                },
                {
                  "lessThan": "58466e05390043d2805685c70f55f3f59711bdf2",
                  "status": "affected",
                  "version": "1513ceee70f2bd523e025efe0c715328e1a43ffd",
                  "versionType": "git"
                },
                {
                  "lessThan": "49ffa473218012e765682343de2052eb4c1f06a7",
                  "status": "affected",
                  "version": "1513ceee70f2bd523e025efe0c715328e1a43ffd",
                  "versionType": "git"
                },
                {
                  "lessThan": "4ceaa684459d414992acbefb4e4c31f2dfc50641",
                  "status": "affected",
                  "version": "1513ceee70f2bd523e025efe0c715328e1a43ffd",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/spi/spi-bcm2835.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "5.4"
                },
                {
                  "lessThan": "5.4",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.4.*",
                  "status": "unaffected",
                  "version": "5.4.208",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.10.*",
                  "status": "unaffected",
                  "version": "5.10.134",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.15.*",
                  "status": "unaffected",
                  "version": "5.15.58",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.18.*",
                  "status": "unaffected",
                  "version": "5.18.15",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "5.19",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.4.208",
                      "versionStartIncluding": "5.4",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.10.134",
                      "versionStartIncluding": "5.4",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.15.58",
                      "versionStartIncluding": "5.4",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.18.15",
                      "versionStartIncluding": "5.4",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.19",
                      "versionStartIncluding": "5.4",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: bcm2835: bcm2835_spi_handle_err(): fix NULL pointer deref for non DMA transfers\n\nIn case a IRQ based transfer times out the bcm2835_spi_handle_err()\nfunction is called. Since commit 1513ceee70f2 (\"spi: bcm2835: Drop\ndma_pending flag\") the TX and RX DMA transfers are unconditionally\ncanceled, leading to NULL pointer derefs if ctlr-\u003edma_tx or\nctlr-\u003edma_rx are not set.\n\nFix the NULL pointer deref by checking that ctlr-\u003edma_tx and\nctlr-\u003edma_rx are valid pointers before accessing them."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-11T19:02:29.249Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/76668d2a2f367d25ff448e6d7087406af7d7bb2b"
            },
            {
              "url": "https://git.kernel.org/stable/c/684896e675edd8b669fd3e9f547c5038222d85bc"
            },
            {
              "url": "https://git.kernel.org/stable/c/58466e05390043d2805685c70f55f3f59711bdf2"
            },
            {
              "url": "https://git.kernel.org/stable/c/49ffa473218012e765682343de2052eb4c1f06a7"
            },
            {
              "url": "https://git.kernel.org/stable/c/4ceaa684459d414992acbefb4e4c31f2dfc50641"
            }
          ],
          "title": "spi: bcm2835: bcm2835_spi_handle_err(): fix NULL pointer deref for non DMA transfers",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2022-49569",
        "datePublished": "2025-02-26T02:23:13.209Z",
        "dateReserved": "2025-02-26T02:21:30.410Z",
        "dateUpdated": "2026-05-11T19:02:29.249Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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.

Sightings

Author Source Type Date Other

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.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.