{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-64033", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T07:54:57.028Z", "datePublished": "2026-07-19T15:39:22.872Z", "dateUpdated": "2026-07-19T15:39:22.872Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-07-19T15:39:22.872Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/rtrs: Fix use-after-free in path file creation cleanup\n\nIn the error path of rtrs_srv_create_path_files(), the sysfs root folders\nmay already have been created and srv_path->kobj may already have been\ninitialized. If a later step fails, the cleanup currently calls\nkobject_put(&srv_path->kobj) before\nrtrs_srv_destroy_once_sysfs_root_folders(srv_path).\n\nkobject_put() may drop the last reference to srv_path->kobj and invoke the\nrelease callback, rtrs_srv_release(), which frees srv_path. The following\ncall to rtrs_srv_destroy_once_sysfs_root_folders(srv_path) then\ndereferences srv_path internally to access srv_path->srv, resulting in a\nuse-after-free.\n\nThis failure path is reached before rtrs_srv_create_path_files() returns\nsuccess, so the successful-path lifetime handling is not involved.\n\nFix this by destroying the sysfs root folders before calling\nkobject_put(&srv_path->kobj), so srv_path is still valid while the helper\naccesses it.\n\nThis issue was found by a static analysis tool I am developing."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c"], "versions": [{"version": "bab17b761c8974a869b04462be5d4dd9aad366b4", "lessThan": "01e42aabaf7632beb4bf235c7238b96c746d4144", "status": "affected", "versionType": "git"}, {"version": "ae4c81644e9105d9f7f713bb0d444737bb6a0cf1", "lessThan": "548f3956e53a7f7bde912d8129010b8986d5e602", "status": "affected", "versionType": "git"}, {"version": "ae4c81644e9105d9f7f713bb0d444737bb6a0cf1", "lessThan": "00904a73272b9f3ef3952fe69a833909dccad1ef", "status": "affected", "versionType": "git"}, {"version": "ae4c81644e9105d9f7f713bb0d444737bb6a0cf1", "lessThan": "92060ab1c5115674cf319175550f85f68405121f", "status": "affected", "versionType": "git"}, {"version": "ae4c81644e9105d9f7f713bb0d444737bb6a0cf1", "lessThan": "eae62c5451e67e8b033c1681fd3b85d7e9a9a28f", "status": "affected", "versionType": "git"}, {"version": "ae4c81644e9105d9f7f713bb0d444737bb6a0cf1", "lessThan": "b0e9706fb2859064bb6c677554c4d20c713aa8e0", "status": "affected", "versionType": "git"}, {"version": "ae4c81644e9105d9f7f713bb0d444737bb6a0cf1", "lessThan": "5b74373390113fba798a76b483837029ab010fef", "status": "affected", "versionType": "git"}, {"version": "5.15.61", "lessThan": "5.15.209", "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/infiniband/ulp/rtrs/rtrs-srv-sysfs.c"], "versions": [{"version": "5.17", "status": "affected"}, {"version": "0", "lessThan": "5.17", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.209", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.175", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.142", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.92", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.34", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.11", "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": "5.15.61", "versionEndExcluding": "5.15.209"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.17", "versionEndExcluding": "6.1.175"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.17", "versionEndExcluding": "6.6.142"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.17", "versionEndExcluding": "6.12.92"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.17", "versionEndExcluding": "6.18.34"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.17", "versionEndExcluding": "7.0.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.17", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/01e42aabaf7632beb4bf235c7238b96c746d4144"}, {"url": "https://git.kernel.org/stable/c/548f3956e53a7f7bde912d8129010b8986d5e602"}, {"url": "https://git.kernel.org/stable/c/00904a73272b9f3ef3952fe69a833909dccad1ef"}, {"url": "https://git.kernel.org/stable/c/92060ab1c5115674cf319175550f85f68405121f"}, {"url": "https://git.kernel.org/stable/c/eae62c5451e67e8b033c1681fd3b85d7e9a9a28f"}, {"url": "https://git.kernel.org/stable/c/b0e9706fb2859064bb6c677554c4d20c713aa8e0"}, {"url": "https://git.kernel.org/stable/c/5b74373390113fba798a76b483837029ab010fef"}], "title": "RDMA/rtrs: Fix use-after-free in path file creation cleanup", "x_generator": {"engine": "bippy-1.2.0"}}}}

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