| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "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." |
| } |
| ], |
| "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": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "16ad1557cae582e79bb82dddd612d9bdfaa11d4c", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "267c61c4afed0ff9a2e83462abad3f41d8ca1f06", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "e7b75def33eae61ddaad6cb616c517dc3882eb2a", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "0983d288caf984de0202c66641577b739caad561", |
| "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/ethernet/ibm/ibmvnic.c" |
| ], |
| "versions": [ |
| { |
| "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:*:*:*:*:*:*:*:*", |
| "versionEndExcluding": "6.1.101" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionEndExcluding": "6.6.42" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionEndExcluding": "6.9.11" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionEndExcluding": "6.10" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "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" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-41066", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
