cve-2024-26723
Vulnerability from cvelistv5
Published
2024-04-03 14:55
Modified
2025-05-04 08:54
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: lan966x: Fix crash when adding interface under a lag There is a crash when adding one of the lan966x interfaces under a lag interface. The issue can be reproduced like this: ip link add name bond0 type bond miimon 100 mode balance-xor ip link set dev eth0 master bond0 The reason is because when adding a interface under the lag it would go through all the ports and try to figure out which other ports are under that lag interface. And the issue is that lan966x can have ports that are NULL pointer as they are not probed. So then iterating over these ports it would just crash as they are NULL pointers. The fix consists in actually checking for NULL pointers before accessing something from the ports. Like we do in other places.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/15faa1f67ab405d47789d4702f587ec7df7ef03ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2a492f01228b7d091dfe38974ef40dccf8f9f2f1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/48fae67d837488c87379f0c9f27df7391718477cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b9357489c46c7a43999964628db8b47d3a1f8672Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/15faa1f67ab405d47789d4702f587ec7df7ef03ePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/2a492f01228b7d091dfe38974ef40dccf8f9f2f1Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/48fae67d837488c87379f0c9f27df7391718477cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b9357489c46c7a43999964628db8b47d3a1f8672Patch
Impacted products
Vendor Product Version
Linux Linux Version: cabc9d49333df72fe0f6d58bdcf9057ba341e701
Version: cabc9d49333df72fe0f6d58bdcf9057ba341e701
Version: cabc9d49333df72fe0f6d58bdcf9057ba341e701
Version: cabc9d49333df72fe0f6d58bdcf9057ba341e701
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   Linux Linux Version: 6.1
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\"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-07-16T14:45:31.412Z\"}}], \"cna\": {\"title\": \"lan966x: Fix crash when adding interface under a lag\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"cabc9d49333df72fe0f6d58bdcf9057ba341e701\", \"lessThan\": \"b9357489c46c7a43999964628db8b47d3a1f8672\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"cabc9d49333df72fe0f6d58bdcf9057ba341e701\", \"lessThan\": \"48fae67d837488c87379f0c9f27df7391718477c\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"cabc9d49333df72fe0f6d58bdcf9057ba341e701\", \"lessThan\": \"2a492f01228b7d091dfe38974ef40dccf8f9f2f1\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"cabc9d49333df72fe0f6d58bdcf9057ba341e701\", \"lessThan\": \"15faa1f67ab405d47789d4702f587ec7df7ef03e\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/net/ethernet/microchip/lan966x/lan966x_lag.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.1\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.1\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.1.79\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.18\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.7.6\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.7.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/net/ethernet/microchip/lan966x/lan966x_lag.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/b9357489c46c7a43999964628db8b47d3a1f8672\"}, {\"url\": \"https://git.kernel.org/stable/c/48fae67d837488c87379f0c9f27df7391718477c\"}, {\"url\": \"https://git.kernel.org/stable/c/2a492f01228b7d091dfe38974ef40dccf8f9f2f1\"}, {\"url\": \"https://git.kernel.org/stable/c/15faa1f67ab405d47789d4702f587ec7df7ef03e\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nlan966x: Fix crash when adding interface under a lag\\n\\nThere is a crash when adding one of the lan966x interfaces under a lag\\ninterface. The issue can be reproduced like this:\\nip link add name bond0 type bond miimon 100 mode balance-xor\\nip link set dev eth0 master bond0\\n\\nThe reason is because when adding a interface under the lag it would go\\nthrough all the ports and try to figure out which other ports are under\\nthat lag interface. And the issue is that lan966x can have ports that are\\nNULL pointer as they are not probed. So then iterating over these ports\\nit would just crash as they are NULL pointers.\\nThe fix consists in actually checking for NULL pointers before accessing\\nsomething from the ports. Like we do in other places.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.79\", \"versionStartIncluding\": \"6.1\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.18\", \"versionStartIncluding\": \"6.1\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.7.6\", \"versionStartIncluding\": \"6.1\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8\", \"versionStartIncluding\": \"6.1\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T08:54:55.658Z\"}}}",
         cveMetadata: "{\"cveId\": \"CVE-2024-26723\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T08:54:55.658Z\", \"dateReserved\": \"2024-02-19T14:20:24.163Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-04-03T14:55:22.529Z\", \"assignerShortName\": \"Linux\"}",
         dataType: "CVE_RECORD",
         dataVersion: "5.1",
      },
   },
}


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