CVE-2022-49650

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{}

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This commit reverts it and just enables pm_runtime\nin all cases, the clk_* functions already just nop when the clock is NULL.\n\nAlso clean up a bit by removing unnecessary bamclk null checks."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: dmaengine: qcom: bam_dma: fix runtime PM underflow El commit dbad41e7bb5f (\"dmaengine: qcom: bam_dma: check if the runtime pm enabled\") caus\u00f3 llamadas pm_runtime_get/put() desequilibradas cuando el bam se controla de forma remota. Este commit lo revierte y simplemente habilita pm_runtime en todos los casos, las funciones clk_* ya simplemente dejan de funcionar cuando el reloj es NULL. Tambi\u00e9n limpie un poco eliminando las comprobaciones nulas innecesarias de bamclk."}], "id": "CVE-2022-49650", "lastModified": "2026-06-17T05:18:45.170", "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": "2025-02-26T07:01:40.150", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0ac9c3dd0d6fe293cd5044cfad10bec27d171e4e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2f6ded79068cac8cff41d5d5632564165d98ee12"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b702a1077b51fcb39507cc3bd39206f539319a96"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-191"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: dmaengine: qcom: bam_dma: fix runtime PM underflow", "id": "2348176", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2348176"}, "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"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndmaengine: qcom: bam_dma: fix runtime PM underflow\nCommit dbad41e7bb5f (\"dmaengine: qcom: bam_dma: check if the runtime pm enabled\")\ncaused unbalanced pm_runtime_get/put() calls when the bam is\ncontrolled remotely. This commit reverts it and just enables pm_runtime\nin all cases, the clk_* functions already just nop when the clock is NULL.\nAlso clean up a bit by removing unnecessary bamclk null checks."], "name": "CVE-2022-49650", "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-2022-49650\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49650\nhttps://lore.kernel.org/linux-cve-announce/2025022620-CVE-2022-49650-c3d8@gregkh/T"], "threat_severity": "Low"}

{"created": "2025-07-12T22:01:24.451731+00:00", "updated": "2025-07-12T22:01:24.451791+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}