{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53371", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.401Z", "datePublished": "2026-07-19T09:10:31.706Z", "dateUpdated": "2026-07-19T09:10:31.706Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-07-19T09:10:31.706Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/ionic: bound node_desc sysfs read with %.64s\n\nnode_desc[64] in struct ib_device is not guaranteed to be NUL-\nterminated. The core IB sysfs handler uses \"%.64s\" for exactly this\nreason (drivers/infiniband/core/sysfs.c:1307), since node_desc_store()\nperforms a raw memcpy of up to IB_DEVICE_NODE_DESC_MAX bytes with no NUL\ntermination:\n\n memcpy(desc.node_desc, buf, min_t(int, count, IB_DEVICE_NODE_DESC_MAX));\n\nIf exactly 64 bytes are written via the node_desc sysfs file, the array\ncontains no NUL byte. The ionic hca_type_show() handler uses unbounded\n\"%s\" and will read past the end of node_desc into adjacent fields of\nstruct ib_device until it encounters a NUL.\n\nionic supports IB_DEVICE_MODIFY_NODE_DESC, so this is triggerable by\nuserspace.\n\nMatch the core handler and bound the format specifier."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/infiniband/hw/ionic/ionic_ibdev.c"], "versions": [{"version": "2075bbe8ef03914aa2211035eec45d1d3a5c4ff2", "lessThan": "61df14f306f153bffa2f3c74a94ff5a85c99fa39", "status": "affected", "versionType": "git"}, {"version": "2075bbe8ef03914aa2211035eec45d1d3a5c4ff2", "lessThan": "a3e9372203afde2c62576356bb9a17890bc7fd6c", "status": "affected", "versionType": "git"}, {"version": "2075bbe8ef03914aa2211035eec45d1d3a5c4ff2", "lessThan": "654a27f25530d052eeedf086e6c3e2d585c203bd", "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/infiniband/hw/ionic/ionic_ibdev.c"], "versions": [{"version": "6.18", "status": "affected"}, {"version": "0", "lessThan": "6.18", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.30", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.7", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "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": "6.18", "versionEndExcluding": "6.18.30"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "7.0.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/61df14f306f153bffa2f3c74a94ff5a85c99fa39"}, {"url": "https://git.kernel.org/stable/c/a3e9372203afde2c62576356bb9a17890bc7fd6c"}, {"url": "https://git.kernel.org/stable/c/654a27f25530d052eeedf086e6c3e2d585c203bd"}], "title": "RDMA/ionic: bound node_desc sysfs read with %.64s", "x_generator": {"engine": "bippy-1.2.0"}}}}

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