{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-43862", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-08-17T09:11:59.279Z", "datePublished": "2024-08-20T23:45:26.643Z", "dateUpdated": "2024-09-15T17:54:29.264Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-09-15T17:54:29.264Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: wan: fsl_qmc_hdlc: Convert carrier_lock spinlock to a mutex\n\nThe carrier_lock spinlock protects the carrier detection. While it is\nheld, framer_get_status() is called which in turn takes a mutex.\nThis is not correct and can lead to a deadlock.\n\nA run with PROVE_LOCKING enabled detected the issue:\n [ BUG: Invalid wait context ]\n ...\n c204ddbc (&framer->mutex){+.+.}-{3:3}, at: framer_get_status+0x40/0x78\n other info that might help us debug this:\n context-{4:4}\n 2 locks held by ifconfig/146:\n #0: c0926a38 (rtnl_mutex){+.+.}-{3:3}, at: devinet_ioctl+0x12c/0x664\n #1: c2006a40 (&qmc_hdlc->carrier_lock){....}-{2:2}, at: qmc_hdlc_framer_set_carrier+0x30/0x98\n\nAvoid the spinlock usage and convert carrier_lock to a mutex."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wan/fsl_qmc_hdlc.c"], "versions": [{"version": "54762918ca85", "lessThan": "f223d2b4acb7", "status": "affected", "versionType": "git"}, {"version": "54762918ca85", "lessThan": "c4d6a347ba7b", "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/net/wan/fsl_qmc_hdlc.c"], "versions": [{"version": "6.9", "status": "affected"}, {"version": "0", "lessThan": "6.9", "status": "unaffected", "versionType": "custom"}, {"version": "6.10.4", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "custom"}, {"version": "6.11", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/f223d2b4acb7a45a6e0581cb380e1af1a6dc7ab9"}, {"url": "https://git.kernel.org/stable/c/c4d6a347ba7babdf9d90a0eb24048c266cae0532"}], "title": "net: wan: fsl_qmc_hdlc: Convert carrier_lock spinlock to a mutex", "x_generator": {"engine": "bippy-c9c4e1df01b2"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-43862", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T16:06:49.152851Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-12T17:33:19.773Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-43862", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T16:06:49.152851Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T12:42:22.801Z"}}], "cna": {"title": "net: wan: fsl_qmc_hdlc: Convert carrier_lock spinlock to a mutex", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "54762918ca85", "lessThan": "f223d2b4acb7", "versionType": "git"}, {"status": "affected", "version": "54762918ca85", "lessThan": "c4d6a347ba7b", "versionType": "git"}], "programFiles": ["drivers/net/wan/fsl_qmc_hdlc.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.9"}, {"status": "unaffected", "version": "0", "lessThan": "6.9", "versionType": "custom"}, {"status": "unaffected", "version": "6.10.4", "versionType": "custom", "lessThanOrEqual": "6.10.*"}, {"status": "unaffected", "version": "6.11", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/net/wan/fsl_qmc_hdlc.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/f223d2b4acb7a45a6e0581cb380e1af1a6dc7ab9"}, {"url": "https://git.kernel.org/stable/c/c4d6a347ba7babdf9d90a0eb24048c266cae0532"}], "x_generator": {"engine": "bippy-c9c4e1df01b2"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: wan: fsl_qmc_hdlc: Convert carrier_lock spinlock to a mutex\n\nThe carrier_lock spinlock protects the carrier detection. While it is\nheld, framer_get_status() is called which in turn takes a mutex.\nThis is not correct and can lead to a deadlock.\n\nA run with PROVE_LOCKING enabled detected the issue:\n [ BUG: Invalid wait context ]\n ...\n c204ddbc (&framer->mutex){+.+.}-{3:3}, at: framer_get_status+0x40/0x78\n other info that might help us debug this:\n context-{4:4}\n 2 locks held by ifconfig/146:\n #0: c0926a38 (rtnl_mutex){+.+.}-{3:3}, at: devinet_ioctl+0x12c/0x664\n #1: c2006a40 (&qmc_hdlc->carrier_lock){....}-{2:2}, at: qmc_hdlc_framer_set_carrier+0x30/0x98\n\nAvoid the spinlock usage and convert carrier_lock to a mutex."}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-09-15T17:54:29.264Z"}}}, "cveMetadata": {"cveId": "CVE-2024-43862", "state": "PUBLISHED", "dateUpdated": "2024-09-15T17:54:29.264Z", "dateReserved": "2024-08-17T09:11:59.279Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-08-20T23:45:26.643Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "0CB5CFBB-1C1A-4E39-8C2E-B31A756ECFD9", "versionEndExcluding": "6.10.4", "versionStartIncluding": "6.9", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*", "matchCriteriaId": "8B3CE743-2126-47A3-8B7C-822B502CF119", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: wan: fsl_qmc_hdlc: Convert carrier_lock spinlock to a mutex\n\nThe carrier_lock spinlock protects the carrier detection. While it is\nheld, framer_get_status() is called which in turn takes a mutex.\nThis is not correct and can lead to a deadlock.\n\nA run with PROVE_LOCKING enabled detected the issue:\n [ BUG: Invalid wait context ]\n ...\n c204ddbc (&framer->mutex){+.+.}-{3:3}, at: framer_get_status+0x40/0x78\n other info that might help us debug this:\n context-{4:4}\n 2 locks held by ifconfig/146:\n #0: c0926a38 (rtnl_mutex){+.+.}-{3:3}, at: devinet_ioctl+0x12c/0x664\n #1: c2006a40 (&qmc_hdlc->carrier_lock){....}-{2:2}, at: qmc_hdlc_framer_set_carrier+0x30/0x98\n\nAvoid the spinlock usage and convert carrier_lock to a mutex."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: wan: fsl_qmc_hdlc: convierte el spinlock de Carrier_lock en un mutex El spinlock de Carrier_lock protege la detecci\u00f3n del operador. Mientras se mantiene, se llama a framer_get_status(), que a su vez toma un mutex. Esto no es correcto y puede llevar a un punto muerto. Una ejecuci\u00f3n con PROVE_LOCKING habilitado detect\u00f3 el problema: [ERROR: Contexto de espera no v\u00e1lido] ... c204ddbc (&framer->mutex){+.+.}-{3:3}, en: framer_get_status+0x40/0x78 otra informaci\u00f3n que podr\u00eda ay\u00fadenos a depurar esto: contexto-{4:4} 2 bloqueos retenidos por ifconfig/146: #0: c0926a38 (rtnl_mutex){+.+.}-{3:3}, en: devinet_ioctl+0x12c/0x664 #1: c2006a40 (&qmc_hdlc->carrier_lock){....}-{2:2}, en: qmc_hdlc_framer_set_carrier+0x30/0x98 Evite el uso de spinlock y convierta carrier_lock en un mutex."}], "id": "CVE-2024-43862", "lastModified": "2024-09-03T13:44:24.033", "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": "2024-08-21T00:15:04.773", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c4d6a347ba7babdf9d90a0eb24048c266cae0532"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f223d2b4acb7a45a6e0581cb380e1af1a6dc7ab9"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-667"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: net: wan: fsl_qmc_hdlc: Convert carrier_lock spinlock to a mutex", "id": "2306354", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2306354"}, "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:\nnet: wan: fsl_qmc_hdlc: Convert carrier_lock spinlock to a mutex\nThe carrier_lock spinlock protects the carrier detection. While it is\nheld, framer_get_status() is called which in turn takes a mutex.\nThis is not correct and can lead to a deadlock.\nA run with PROVE_LOCKING enabled detected the issue:\n[ BUG: Invalid wait context ]\n...\nc204ddbc (&framer->mutex){+.+.}-{3:3}, at: framer_get_status+0x40/0x78\nother info that might help us debug this:\ncontext-{4:4}\n2 locks held by ifconfig/146:\n#0: c0926a38 (rtnl_mutex){+.+.}-{3:3}, at: devinet_ioctl+0x12c/0x664\n#1: c2006a40 (&qmc_hdlc->carrier_lock){....}-{2:2}, at: qmc_hdlc_framer_set_carrier+0x30/0x98\nAvoid the spinlock usage and convert carrier_lock to a mutex."], "name": "CVE-2024-43862", "package_state": [{"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": "2024-08-20T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-43862\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-43862\nhttps://lore.kernel.org/linux-cve-announce/2024082154-CVE-2024-43862-636a@gregkh/T"], "threat_severity": "Moderate"}