{"api_version":"1","generated_at":"2026-07-23T11:01:58+00:00","cve":"CVE-2026-53371","urls":{"html":"https://cve.report/CVE-2026-53371","api":"https://cve.report/api/cve/CVE-2026-53371.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-53371","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53371"},"summary":{"title":"RDMA/ionic: bound node_desc sysfs read with %.64s","description":"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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-19 09:17:02","updated_at":"2026-07-19 09:17:02"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/654a27f25530d052eeedf086e6c3e2d585c203bd","name":"https://git.kernel.org/stable/c/654a27f25530d052eeedf086e6c3e2d585c203bd","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/61df14f306f153bffa2f3c74a94ff5a85c99fa39","name":"https://git.kernel.org/stable/c/61df14f306f153bffa2f3c74a94ff5a85c99fa39","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a3e9372203afde2c62576356bb9a17890bc7fd6c","name":"https://git.kernel.org/stable/c/a3e9372203afde2c62576356bb9a17890bc7fd6c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-53371","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53371","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2075bbe8ef03914aa2211035eec45d1d3a5c4ff2 61df14f306f153bffa2f3c74a94ff5a85c99fa39 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2075bbe8ef03914aa2211035eec45d1d3a5c4ff2 a3e9372203afde2c62576356bb9a17890bc7fd6c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2075bbe8ef03914aa2211035eec45d1d3a5c4ff2 654a27f25530d052eeedf086e6c3e2d585c203bd git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.18","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.30 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.7 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"53371","cve":"CVE-2026-53371","epss":"0.001660000","percentile":"0.062370000","score_date":"2026-07-20","updated_at":"2026-07-21 00:13:14"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/infiniband/hw/ionic/ionic_ibdev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"61df14f306f153bffa2f3c74a94ff5a85c99fa39","status":"affected","version":"2075bbe8ef03914aa2211035eec45d1d3a5c4ff2","versionType":"git"},{"lessThan":"a3e9372203afde2c62576356bb9a17890bc7fd6c","status":"affected","version":"2075bbe8ef03914aa2211035eec45d1d3a5c4ff2","versionType":"git"},{"lessThan":"654a27f25530d052eeedf086e6c3e2d585c203bd","status":"affected","version":"2075bbe8ef03914aa2211035eec45d1d3a5c4ff2","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/infiniband/hw/ionic/ionic_ibdev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.30","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.7","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.30","versionStartIncluding":"6.18","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.7","versionStartIncluding":"6.18","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"6.18","vulnerable":true}],"negate":false,"operator":"OR"}]}],"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."}],"providerMetadata":{"dateUpdated":"2026-07-19T09:10:31.706Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"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"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-53371","datePublished":"2026-07-19T09:10:31.706Z","dateReserved":"2026-06-09T07:44:35.401Z","dateUpdated":"2026-07-19T09:10:31.706Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-19 09:17:02","lastModifiedDate":"2026-07-19 09:17:02","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"53371","Ordinal":"1","Title":"RDMA/ionic: bound node_desc sysfs read with %.64s","CVE":"CVE-2026-53371","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"53371","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"RDMA/ionic: bound node_desc sysfs read with %.64s"}]}}}