CVE-2022-49569

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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->dma_tx or\nctlr->dma_rx are not set.\n\nFix the NULL pointer deref by checking that ctlr->dma_tx and\nctlr->dma_rx are valid pointers before accessing them."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/spi/spi-bcm2835.c"], "versions": [{"version": "1513ceee70f2bd523e025efe0c715328e1a43ffd", "lessThan": "76668d2a2f367d25ff448e6d7087406af7d7bb2b", "status": "affected", "versionType": "git"}, {"version": "1513ceee70f2bd523e025efe0c715328e1a43ffd", "lessThan": "684896e675edd8b669fd3e9f547c5038222d85bc", "status": "affected", "versionType": "git"}, {"version": "1513ceee70f2bd523e025efe0c715328e1a43ffd", "lessThan": "58466e05390043d2805685c70f55f3f59711bdf2", "status": "affected", "versionType": "git"}, {"version": "1513ceee70f2bd523e025efe0c715328e1a43ffd", "lessThan": "49ffa473218012e765682343de2052eb4c1f06a7", "status": "affected", "versionType": "git"}, {"version": "1513ceee70f2bd523e025efe0c715328e1a43ffd", "lessThan": "4ceaa684459d414992acbefb4e4c31f2dfc50641", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/spi/spi-bcm2835.c"], "versions": [{"version": "5.4", "status": "affected"}, {"version": "0", "lessThan": "5.4", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.208", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.134", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.58", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.18.15", "lessThanOrEqual": "5.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.19", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4", "versionEndExcluding": "5.4.208"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4", "versionEndExcluding": "5.10.134"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4", "versionEndExcluding": "5.15.58"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4", "versionEndExcluding": "5.18.15"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4", "versionEndExcluding": "5.19"}]}]}], "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"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2022-49569", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-10-01T19:36:53.132974Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-476", "description": "CWE-476 NULL Pointer Dereference"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T19:46:37.670Z"}}]}}

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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->dma_tx or\nctlr->dma_rx are not set.\n\nFix the NULL pointer deref by checking that ctlr->dma_tx and\nctlr->dma_rx are valid pointers before accessing them."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.4.208", "versionStartIncluding": "5.4"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.134", "versionStartIncluding": "5.4"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.58", "versionStartIncluding": "5.4"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.18.15", "versionStartIncluding": "5.4"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.19", "versionStartIncluding": "5.4"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:02:29.249Z"}}}, "cveMetadata": {"cveId": "CVE-2022-49569", "state": "PUBLISHED", "dateUpdated": "2026-05-11T19:02:29.249Z", "dateReserved": "2025-02-26T02:21:30.410Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2025-02-26T02:23:13.209Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

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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->dma_tx or\nctlr->dma_rx are not set.\n\nFix the NULL pointer deref by checking that ctlr->dma_tx and\nctlr->dma_rx are valid pointers before accessing them."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: spi: bcm2835: bcm2835_spi_handle_err(): corrige la desreferencia del puntero NULL para transferencias que no sean DMA En caso de que se agote el tiempo de espera de una transferencia basada en IRQ, se llama a la funci\u00f3n bcm2835_spi_handle_err(). Desde el commit 1513ceee70f2 (\"spi: bcm2835: Drop dma_pending flag\") las transferencias DMA TX y RX se cancelan incondicionalmente, lo que lleva a desreferencias del puntero NULL si no se configuran ctlr->dma_tx o ctlr->dma_rx. Corrija la desreferencia del puntero NULL comprobando que ctlr->dma_tx y ctlr->dma_rx sean punteros v\u00e1lidos antes de acceder a ellos."}], "id": "CVE-2022-49569", "lastModified": "2026-06-17T05:18:28.690", "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"}, {"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": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-49569", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-10-01T19:36:53.132974Z", "version": "2.0.3"}}]}, "published": "2025-02-26T07:01:32.607", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/49ffa473218012e765682343de2052eb4c1f06a7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4ceaa684459d414992acbefb4e4c31f2dfc50641"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/58466e05390043d2805685c70f55f3f59711bdf2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/684896e675edd8b669fd3e9f547c5038222d85bc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/76668d2a2f367d25ff448e6d7087406af7d7bb2b"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-476"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: spi: bcm2835: bcm2835_spi_handle_err(): fix NULL pointer deref for non DMA transfers", "id": "2347799", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2347799"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nspi: bcm2835: bcm2835_spi_handle_err(): fix NULL pointer deref for non DMA transfers\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->dma_tx or\nctlr->dma_rx are not set.\nFix the NULL pointer deref by checking that ctlr->dma_tx and\nctlr->dma_rx are valid pointers before accessing them."], "name": "CVE-2022-49569", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49569\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49569\nhttps://lore.kernel.org/linux-cve-announce/2025022606-CVE-2022-49569-3c5b@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-07-13T11:32:25.011879+00:00", "updated": "2025-07-13T11:32:25.011964+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}