CVE-2021-46914

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/ethernet/intel/ixgbe/ixgbe_main.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "be07581aacae7cd0a073afae8e8862032f794309", "status": "affected", "version": "6f82b25587354ce7c9c42e0b53d8b0770b900847", "versionType": "git"}, {"lessThan": "f1b4be4a753caa4056496f679d70550d0c11a264", "status": "affected", "version": "6f82b25587354ce7c9c42e0b53d8b0770b900847", "versionType": "git"}, {"lessThan": "debb9df311582c83fe369baa35fa4b92e8a9c58a", "status": "affected", "version": "6f82b25587354ce7c9c42e0b53d8b0770b900847", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/ethernet/intel/ixgbe/ixgbe_main.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.9"}, {"lessThan": "5.9", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.32", "versionType": "semver"}, {"lessThanOrEqual": "5.11.*", "status": "unaffected", "version": "5.11.16", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "5.12", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E3DE1907-1009-48E0-B696-42F5B1135524", "versionEndExcluding": "5.10.32", "versionStartIncluding": "5.9.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "3C5242B9-B5BD-4578-AD66-69DF59D54A14", "versionEndExcluding": "5.11.16", "versionStartIncluding": "5.11.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nixgbe: fix unbalanced device enable/disable in suspend/resume\n\npci_disable_device() called in __ixgbe_shutdown() decreases\ndev->enable_cnt by 1. pci_enable_device_mem() which increases\ndev->enable_cnt by 1, was removed from ixgbe_resume() in commit\n6f82b2558735 (\"ixgbe: use generic power management\"). This caused\nunbalanced increase/decrease. So add pci_enable_device_mem() back.\n\nFix the following call trace.\n\n ixgbe 0000:17:00.1: disabling already-disabled device\n Call Trace:\n __ixgbe_shutdown+0x10a/0x1e0 [ixgbe]\n ixgbe_suspend+0x32/0x70 [ixgbe]\n pci_pm_suspend+0x87/0x160\n ? pci_pm_freeze+0xd0/0xd0\n dpm_run_callback+0x42/0x170\n __device_suspend+0x114/0x460\n async_suspend+0x1f/0xa0\n async_run_entry_fn+0x3c/0xf0\n process_one_work+0x1dd/0x410\n worker_thread+0x34/0x3f0\n ? cancel_delayed_work+0x90/0x90\n kthread+0x14c/0x170\n ? kthread_park+0x90/0x90\n ret_from_fork+0x1f/0x30"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ixgbe: arreglar dispositivo desequilibrado habilitar/deshabilitar en suspensi\u00f3n/reanudaci\u00f3n pci_disable_device() llamado en __ixgbe_shutdown() disminuye dev->enable_cnt en 1. pci_enable_device_mem() que aumenta dev->enable_cnt en 1 1, se elimin\u00f3 de ixgbe_resume() en el commit 6f82b2558735 (\"ixgbe: usar administraci\u00f3n de energ\u00eda gen\u00e9rica\"). Esto provoc\u00f3 un aumento/disminuci\u00f3n desequilibrado. As\u00ed que vuelva a agregar pci_enable_device_mem(). Corrija el siguiente rastreo de llamadas. ixgbe 0000:17:00.1: deshabilitar el seguimiento de llamadas del dispositivo ya deshabilitado: __ixgbe_shutdown+0x10a/0x1e0 [ixgbe] ixgbe_suspend+0x32/0x70 [ixgbe] pci_pm_suspend+0x87/0x160 ? pci_pm_freeze+0xd0/0xd0 dpm_run_callback+0x42/0x170 __device_suspend+0x114/0x460 async_suspend+0x1f/0xa0 async_run_entry_fn+0x3c/0xf0 Process_one_work+0x1dd/0x410 Workers_thread+0x34/0x3f0 ? cancel_delayed_work+0x90/0x90 kthread+0x14c/0x170 ? kthread_park+0x90/0x90 ret_from_fork+0x1f/0x30"}], "id": "CVE-2021-46914", "lastModified": "2026-06-17T04:15:49.940", "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"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2021-46914", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-03-05T16:30:41.651312Z", "version": "2.0.3"}}]}, "published": "2024-02-27T07:15:07.920", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/be07581aacae7cd0a073afae8e8862032f794309"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/debb9df311582c83fe369baa35fa4b92e8a9c58a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f1b4be4a753caa4056496f679d70550d0c11a264"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/be07581aacae7cd0a073afae8e8862032f794309"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/debb9df311582c83fe369baa35fa4b92e8a9c58a"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f1b4be4a753caa4056496f679d70550d0c11a264"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-Other"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: unbalanced device enable/disable in suspend/resume", "id": "2266427", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2266427"}, "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:\nixgbe: fix unbalanced device enable/disable in suspend/resume\npci_disable_device() called in __ixgbe_shutdown() decreases\ndev->enable_cnt by 1. pci_enable_device_mem() which increases\ndev->enable_cnt by 1, was removed from ixgbe_resume() in commit\n6f82b2558735 (\"ixgbe: use generic power management\"). This caused\nunbalanced increase/decrease. So add pci_enable_device_mem() back.\nFix the following call trace.\nixgbe 0000:17:00.1: disabling already-disabled device\nCall Trace:\n__ixgbe_shutdown+0x10a/0x1e0 [ixgbe]\nixgbe_suspend+0x32/0x70 [ixgbe]\npci_pm_suspend+0x87/0x160\n? pci_pm_freeze+0xd0/0xd0\ndpm_run_callback+0x42/0x170\n__device_suspend+0x114/0x460\nasync_suspend+0x1f/0xa0\nasync_run_entry_fn+0x3c/0xf0\nprocess_one_work+0x1dd/0x410\nworker_thread+0x34/0x3f0\n? cancel_delayed_work+0x90/0x90\nkthread+0x14c/0x170\n? kthread_park+0x90/0x90\nret_from_fork+0x1f/0x30", "A flaw was found in the Linux kernel, in unbalanced device enable/disable in suspend/resume. This may cause a crash."], "name": "CVE-2021-46914", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "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": "2024-02-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-46914\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-46914\nhttps://git.kernel.org/stable/c/be07581aacae7cd0a073afae8e8862032f794309\nhttps://git.kernel.org/stable/c/debb9df311582c83fe369baa35fa4b92e8a9c58a\nhttps://git.kernel.org/stable/c/f1b4be4a753caa4056496f679d70550d0c11a264"], "threat_severity": "Moderate"}

{}