CVE-2024-41066

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So, if, by some chance, our free_map and\ntx_buff lists become out of sync then we were previously risking an\nskb memory leak. This could then cause tcp congestion control to stop\nsending packets, eventually leading to ETIMEDOUT.\n\nTherefore, add a conditional to ensure that the skb address is null. If\nnot then warn the user (because this is still a bug that should be\npatched) and free the old pointer to prevent memleak/tcp problems."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:N - The vulnerable code is `ibmvnic_xmit()`, the transmit path exercised by every outbound packet, on the primary network interface of PowerVM LPARs that commonly serve internet-facing workloads. Unauthenticated remote traffic both induces the TX-watchdog reset that desyncs the pools and drives the subsequent leaking transmits, with no local access required.\nAC:L - An attacker saturating the interface can stall the TX queue and trip the watchdog (`ibmvnic_tx_timeout` \u2192 `VNIC_RESET_TIMEOUT`) while packets are in flight, creating the free_map/tx_buff desync, then continue sending to leak an skb on essentially every transmit that lands on an untracked slot. Once desynced the leak is deterministic, not probabilistic.\nPR:N - No credentials or account are needed \u2014 any remote peer that sends traffic eliciting responses reaches the transmit path. No capability check, authentication gate, or privileged interface sits between the attacker and the vulnerable code.\nUI:N - The leak occurs autonomously inside the driver's transmit path as packets are processed. No administrator or user action is required at any point.\nS:U - The leaked memory and the stalled TCP connections are all within the affected kernel's own security authority. Although the adapter is backed by a VIOS partition, nothing crosses into the VIOS, the hypervisor, or other LPARs.\nC:N - There is no out-of-bounds read, use-after-free, or uninitialized-memory exposure \u2014 the stale skb pointer is overwritten, never dereferenced. The DMA long-term buffer is zeroed with `memset(dst, 0, tx_pool->buf_size)` before every copy, so no residual kernel data can be emitted on the wire.\nI:N - No memory corruption, arbitrary write, or control-flow influence results; the defect is a dropped reference to a still-valid object. Nothing an attacker supplies modifies kernel data structures or stored data.\nA:H - Each leaked skb permanently pins the owning socket's `sk_wmem_alloc`, so congestion control halts transmission and connections fail with ETIMEDOUT, as the commit message states explicitly. Under sustained traffic this is unbounded kernel memory exhaustion combined with complete loss of network service on the affected system \u2014 not mere degradation."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/ibm/ibmvnic.c"], "versions": [{"version": "65d6470d139a6c1655fccb5cbacbeaba8e8ad2f8", "lessThan": "16ad1557cae582e79bb82dddd612d9bdfaa11d4c", "status": "affected", "versionType": "git"}, {"version": "65d6470d139a6c1655fccb5cbacbeaba8e8ad2f8", "lessThan": "267c61c4afed0ff9a2e83462abad3f41d8ca1f06", "status": "affected", "versionType": "git"}, {"version": "65d6470d139a6c1655fccb5cbacbeaba8e8ad2f8", "lessThan": "e7b75def33eae61ddaad6cb616c517dc3882eb2a", "status": "affected", "versionType": "git"}, {"version": "65d6470d139a6c1655fccb5cbacbeaba8e8ad2f8", "lessThan": "0983d288caf984de0202c66641577b739caad561", "status": "affected", "versionType": "git"}, {"version": "1a64564eee05128f773930649edfdd50cbe80656", "status": "affected", "versionType": "git"}, {"version": "5142c39253385702a4de8f897027e1d76fc333de", "status": "affected", "versionType": "git"}, {"version": "5.12.17", "lessThan": "5.13", "status": "affected", "versionType": "semver"}, {"version": "5.13.2", "lessThan": "5.14", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/ibm/ibmvnic.c"], "versions": [{"version": "5.14", "status": "affected"}, {"version": "0", "lessThan": "5.14", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.101", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.42", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.9.11", "lessThanOrEqual": "6.9.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.10", "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": "5.14", "versionEndExcluding": "6.1.101"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.6.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.9.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12.17"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/16ad1557cae582e79bb82dddd612d9bdfaa11d4c"}, {"url": "https://git.kernel.org/stable/c/267c61c4afed0ff9a2e83462abad3f41d8ca1f06"}, {"url": "https://git.kernel.org/stable/c/e7b75def33eae61ddaad6cb616c517dc3882eb2a"}, {"url": "https://git.kernel.org/stable/c/0983d288caf984de0202c66641577b739caad561"}], "title": "ibmvnic: Add tx check to prevent skb leak", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/16ad1557cae582e79bb82dddd612d9bdfaa11d4c", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/267c61c4afed0ff9a2e83462abad3f41d8ca1f06", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/e7b75def33eae61ddaad6cb616c517dc3882eb2a", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/0983d288caf984de0202c66641577b739caad561", "tags": ["x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T22:00:16.258Z"}}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-41066", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T16:21:52.759335Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:32:57.523Z"}}]}}

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Unauthenticated remote traffic both induces the TX-watchdog reset that desyncs the pools and drives the subsequent leaking transmits, with no local access required.\nAC:L - An attacker saturating the interface can stall the TX queue and trip the watchdog (`ibmvnic_tx_timeout` \u2192 `VNIC_RESET_TIMEOUT`) while packets are in flight, creating the free_map/tx_buff desync, then continue sending to leak an skb on essentially every transmit that lands on an untracked slot. Once desynced the leak is deterministic, not probabilistic.\nPR:N - No credentials or account are needed \u2014 any remote peer that sends traffic eliciting responses reaches the transmit path. No capability check, authentication gate, or privileged interface sits between the attacker and the vulnerable code.\nUI:N - The leak occurs autonomously inside the driver's transmit path as packets are processed. No administrator or user action is required at any point.\nS:U - The leaked memory and the stalled TCP connections are all within the affected kernel's own security authority. Although the adapter is backed by a VIOS partition, nothing crosses into the VIOS, the hypervisor, or other LPARs.\nC:N - There is no out-of-bounds read, use-after-free, or uninitialized-memory exposure \u2014 the stale skb pointer is overwritten, never dereferenced. The DMA long-term buffer is zeroed with `memset(dst, 0, tx_pool->buf_size)` before every copy, so no residual kernel data can be emitted on the wire.\nI:N - No memory corruption, arbitrary write, or control-flow influence results; the defect is a dropped reference to a still-valid object. Nothing an attacker supplies modifies kernel data structures or stored data.\nA:H - Each leaked skb permanently pins the owning socket's `sk_wmem_alloc`, so congestion control halts transmission and connections fail with ETIMEDOUT, as the commit message states explicitly. Under sustained traffic this is unbounded kernel memory exhaustion combined with complete loss of network service on the affected system \u2014 not mere degradation."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "65d6470d139a6c1655fccb5cbacbeaba8e8ad2f8", "lessThan": "16ad1557cae582e79bb82dddd612d9bdfaa11d4c", "versionType": "git"}, {"status": "affected", "version": "65d6470d139a6c1655fccb5cbacbeaba8e8ad2f8", "lessThan": "267c61c4afed0ff9a2e83462abad3f41d8ca1f06", "versionType": "git"}, {"status": "affected", "version": "65d6470d139a6c1655fccb5cbacbeaba8e8ad2f8", "lessThan": "e7b75def33eae61ddaad6cb616c517dc3882eb2a", "versionType": "git"}, {"status": "affected", "version": "65d6470d139a6c1655fccb5cbacbeaba8e8ad2f8", "lessThan": "0983d288caf984de0202c66641577b739caad561", "versionType": "git"}, {"status": "affected", "version": "1a64564eee05128f773930649edfdd50cbe80656", "versionType": "git"}, {"status": "affected", "version": "5142c39253385702a4de8f897027e1d76fc333de", "versionType": "git"}, {"status": "affected", "version": "5.12.17", "lessThan": "5.13", "versionType": "semver"}, {"status": "affected", "version": "5.13.2", "lessThan": "5.14", "versionType": "semver"}], "programFiles": ["drivers/net/ethernet/ibm/ibmvnic.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.14"}, {"status": "unaffected", "version": "0", "lessThan": "5.14", "versionType": "semver"}, {"status": "unaffected", "version": "6.1.101", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.42", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.9.11", "versionType": "semver", "lessThanOrEqual": "6.9.*"}, {"status": "unaffected", "version": "6.10", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/net/ethernet/ibm/ibmvnic.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/16ad1557cae582e79bb82dddd612d9bdfaa11d4c"}, {"url": "https://git.kernel.org/stable/c/267c61c4afed0ff9a2e83462abad3f41d8ca1f06"}, {"url": "https://git.kernel.org/stable/c/e7b75def33eae61ddaad6cb616c517dc3882eb2a"}, {"url": "https://git.kernel.org/stable/c/0983d288caf984de0202c66641577b739caad561"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nibmvnic: Add tx check to prevent skb leak\n\nBelow is a summary of how the driver stores a reference to an skb during\ntransmit:\n tx_buff[free_map[consumer_index]]->skb = new_skb;\n free_map[consumer_index] = IBMVNIC_INVALID_MAP;\n consumer_index ++;\nWhere variable data looks like this:\n free_map == [4, IBMVNIC_INVALID_MAP, IBMVNIC_INVALID_MAP, 0, 3]\n \tconsumer_index^\n tx_buff == [skb=null, skb=<ptr>, skb=<ptr>, skb=null, skb=null]\n\nThe driver has checks to ensure that free_map[consumer_index] pointed to\na valid index but there was no check to ensure that this index pointed\nto an unused/null skb address. So, if, by some chance, our free_map and\ntx_buff lists become out of sync then we were previously risking an\nskb memory leak. This could then cause tcp congestion control to stop\nsending packets, eventually leading to ETIMEDOUT.\n\nTherefore, add a conditional to ensure that the skb address is null. If\nnot then warn the user (because this is still a bug that should be\npatched) and free the old pointer to prevent memleak/tcp problems."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.101", "versionStartIncluding": "5.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.42", "versionStartIncluding": "5.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.9.11", "versionStartIncluding": "5.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.10", "versionStartIncluding": "5.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "5.12.17"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "5.13.2"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:35:08.968Z"}}}, "cveMetadata": {"cveId": "CVE-2024-41066", "state": "PUBLISHED", "dateUpdated": "2026-08-05T11:35:08.968Z", "dateReserved": "2024-07-12T12:17:45.630Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-07-29T14:57:27.832Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/ethernet/ibm/ibmvnic.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "16ad1557cae582e79bb82dddd612d9bdfaa11d4c", "status": "affected", "version": "65d6470d139a6c1655fccb5cbacbeaba8e8ad2f8", "versionType": "git"}, {"lessThan": "267c61c4afed0ff9a2e83462abad3f41d8ca1f06", "status": "affected", "version": "65d6470d139a6c1655fccb5cbacbeaba8e8ad2f8", "versionType": "git"}, {"lessThan": "e7b75def33eae61ddaad6cb616c517dc3882eb2a", "status": "affected", "version": "65d6470d139a6c1655fccb5cbacbeaba8e8ad2f8", "versionType": "git"}, {"lessThan": "0983d288caf984de0202c66641577b739caad561", "status": "affected", "version": "65d6470d139a6c1655fccb5cbacbeaba8e8ad2f8", "versionType": "git"}, {"status": "affected", "version": "1a64564eee05128f773930649edfdd50cbe80656", "versionType": "git"}, {"status": "affected", "version": "5142c39253385702a4de8f897027e1d76fc333de", "versionType": "git"}, {"lessThan": "5.13", "status": "affected", "version": "5.12.17", "versionType": "semver"}, {"lessThan": "5.14", "status": "affected", "version": "5.13.2", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/ethernet/ibm/ibmvnic.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.14"}, {"lessThan": "5.14", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.101", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.42", "versionType": "semver"}, {"lessThanOrEqual": "6.9.*", "status": "unaffected", "version": "6.9.11", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.10", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "BC2B5B53-6D0E-4FA7-B414-71D3FF089CAA", "versionEndExcluding": "6.1.101", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "972274A2-D688-4C37-BE42-689B58B4C225", "versionEndExcluding": "6.6.42", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "01E300B3-8B39-4A2D-8B03-4631433D3915", "versionEndExcluding": "6.9.11", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc1:*:*:*:*:*:*", "matchCriteriaId": "2EBB4392-5FA6-4DA9-9772-8F9C750109FA", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc2:*:*:*:*:*:*", "matchCriteriaId": "331C2F14-12C7-45D5-893D-8C52EE38EA10", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc3:*:*:*:*:*:*", "matchCriteriaId": "3173713D-909A-4DD3-9DD4-1E171EB057EE", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc4:*:*:*:*:*:*", "matchCriteriaId": "79F18AFA-40F7-43F0-BA30-7BDB65F918B9", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc5:*:*:*:*:*:*", "matchCriteriaId": "BD973AA4-A789-49BD-8D57-B2846935D3C7", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nibmvnic: Add tx check to prevent skb leak\n\nBelow is a summary of how the driver stores a reference to an skb during\ntransmit:\n tx_buff[free_map[consumer_index]]->skb = new_skb;\n free_map[consumer_index] = IBMVNIC_INVALID_MAP;\n consumer_index ++;\nWhere variable data looks like this:\n free_map == [4, IBMVNIC_INVALID_MAP, IBMVNIC_INVALID_MAP, 0, 3]\n \tconsumer_index^\n tx_buff == [skb=null, skb=<ptr>, skb=<ptr>, skb=null, skb=null]\n\nThe driver has checks to ensure that free_map[consumer_index] pointed to\na valid index but there was no check to ensure that this index pointed\nto an unused/null skb address. So, if, by some chance, our free_map and\ntx_buff lists become out of sync then we were previously risking an\nskb memory leak. This could then cause tcp congestion control to stop\nsending packets, eventually leading to ETIMEDOUT.\n\nTherefore, add a conditional to ensure that the skb address is null. If\nnot then warn the user (because this is still a bug that should be\npatched) and free the old pointer to prevent memleak/tcp problems."}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: ibmvnic: agregue verificaci\u00f3n de tx para evitar fugas de skb A continuaci\u00f3n se muestra un resumen de c\u00f3mo el controlador almacena una referencia a un skb durante la transmisi\u00f3n: tx_buff[free_map[consumer_index]]-&gt;skb = new_skb ; free_map[consumer_index] = IBMVNIC_INVALID_MAP; consumer_index++; Donde los datos variables se ven as\u00ed: free_map == [4, IBMVNIC_INVALID_MAP, IBMVNIC_INVALID_MAP, 0, 3] consumer_index^ tx_buff == [skb=null, skb=, skb=, skb=null, skb=null ] El controlador tiene comprobaciones para garantizar que free_map[consumer_index] apunte a un \u00edndice v\u00e1lido, pero no hubo ninguna verificaci\u00f3n para garantizar que este \u00edndice apunte a una direcci\u00f3n skb nula o no utilizada. Entonces, si, por casualidad, nuestras listas free_map y tx_buff no est\u00e1n sincronizadas, entonces est\u00e1bamos arriesg\u00e1ndonos a una p\u00e9rdida de memoria skb. Esto podr\u00eda provocar que el control de congesti\u00f3n de TCP deje de enviar paquetes, lo que eventualmente provocar\u00eda ETIMEDOUT. Por lo tanto, agregue un condicional para garantizar que la direcci\u00f3n skb sea nula. De lo contrario, advierta al usuario (porque todav\u00eda es un error que debe corregirse) y libere el puntero antiguo para evitar problemas de memleak/tcp."}], "id": "CVE-2024-41066", "lastModified": "2026-08-04T11:19:25.557", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"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-2024-41066", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-10T16:21:52.759335Z", "version": "2.0.3"}}]}, "published": "2024-07-29T15:15:14.480", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0983d288caf984de0202c66641577b739caad561"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/16ad1557cae582e79bb82dddd612d9bdfaa11d4c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/267c61c4afed0ff9a2e83462abad3f41d8ca1f06"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e7b75def33eae61ddaad6cb616c517dc3882eb2a"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0983d288caf984de0202c66641577b739caad561"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/16ad1557cae582e79bb82dddd612d9bdfaa11d4c"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/267c61c4afed0ff9a2e83462abad3f41d8ca1f06"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e7b75def33eae61ddaad6cb616c517dc3882eb2a"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2024:8870", "cpe": "cpe:/a:redhat:enterprise_linux:8::nfv", "package": "kernel-rt-0:4.18.0-553.27.1.rt7.368.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-11-05T00:00:00Z"}, {"advisory": "RHSA-2024:8856", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "kernel-0:4.18.0-553.27.1.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-11-05T00:00:00Z"}, {"advisory": "RHSA-2024:8157", "cpe": "cpe:/a:redhat:rhel_eus:9.2", "package": "kernel-0:5.14.0-284.88.1.el9_2", "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "release_date": "2024-10-16T00:00:00Z"}, {"advisory": "RHSA-2024:8158", "cpe": "cpe:/a:redhat:rhel_eus:9.2::nfv", "package": "kernel-rt-0:5.14.0-284.88.1.rt14.373.el9_2", "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "release_date": "2024-10-16T00:00:00Z"}, {"advisory": "RHSA-2024:9546", "cpe": "cpe:/a:redhat:rhel_eus:9.4", "package": "kernel-0:5.14.0-427.44.1.el9_4", "product_name": "Red Hat Enterprise Linux 9.4 Extended Update Support", "release_date": "2024-11-13T00:00:00Z"}], "bugzilla": {"description": "kernel: ibmvnic: Add tx check to prevent skb leak", "id": "2300442", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2300442"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-200", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nibmvnic: Add tx check to prevent skb leak\nBelow is a summary of how the driver stores a reference to an skb during\ntransmit:\ntx_buff[free_map[consumer_index]]->skb = new_skb;\nfree_map[consumer_index] = IBMVNIC_INVALID_MAP;\nconsumer_index ++;\nWhere variable data looks like this:\nfree_map == [4, IBMVNIC_INVALID_MAP, IBMVNIC_INVALID_MAP, 0, 3]\nconsumer_index^\ntx_buff == [skb=null, skb=<ptr>, skb=<ptr>, skb=null, skb=null]\nThe driver has checks to ensure that free_map[consumer_index] pointed to\na valid index but there was no check to ensure that this index pointed\nto an unused/null skb address. So, if, by some chance, our free_map and\ntx_buff lists become out of sync then we were previously risking an\nskb memory leak. This could then cause tcp congestion control to stop\nsending packets, eventually leading to ETIMEDOUT.\nTherefore, add a conditional to ensure that the skb address is null. If\nnot then warn the user (because this is still a bug that should be\npatched) and free the old pointer to prevent memleak/tcp problems."], "mitigation": {"lang": "en:us", "value": "To mitigate this issue, prevent module ibmvnic from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically."}, "name": "CVE-2024-41066", "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": "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:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-07-29T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-41066\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-41066\nhttps://lore.kernel.org/linux-cve-announce/2024072907-CVE-2024-41066-0a52@gregkh/T"], "statement": "This vulnerability exists in the driver for IBM System i/p virtual network adapters. By exploiting this vulnerability, an attacker can cause a leak in memory pools used for processing network traffic, which can cause the kernel's congestion control mechanisms to erroneously stop transmitting packets, effectively a denial of service. Because the affected hardware is uncommon, and because an attacker must be able to generate a large amount of network traffic that is handled specifically by a virtual NIC on that hardware, Red Hat assesses the impact of this vulnerability as Low.", "threat_severity": "Low"}

{}