{ "data_version": "4.0", "data_type": "CVE", "data_format": "MITRE", "CVE_data_meta": { "ID": "CVE-2024-35902", "ASSIGNER": "cve@kernel.org", "STATE": "PUBLIC" }, "description": { "description_data": [ { "lang": "eng", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/rds: fix possible cp null dereference\n\ncp might be null, calling cp->cp_conn would produce null dereference\n\n[Simon Horman adds:]\n\nAnalysis:\n\n* cp is a parameter of __rds_rdma_map and is not reassigned.\n\n* The following call-sites pass a NULL cp argument to __rds_rdma_map()\n\n - rds_get_mr()\n - rds_get_mr_for_dest\n\n* Prior to the code above, the following assumes that cp may be NULL\n (which is indicative, but could itself be unnecessary)\n\n\ttrans_private = rs->rs_transport->get_mr(\n\t\tsg, nents, rs, &mr->r_key, cp ? cp->cp_conn : NULL,\n\t\targs->vec.addr, args->vec.bytes,\n\t\tneed_odp ? ODP_ZEROBASED : ODP_NOT_NEEDED);\n\n* The code modified by this patch is guarded by IS_ERR(trans_private),\n where trans_private is assigned as per the previous point in this analysis.\n\n The only implementation of get_mr that I could locate is rds_ib_get_mr()\n which can return an ERR_PTR if the conn (4th) argument is NULL.\n\n* ret is set to PTR_ERR(trans_private).\n rds_ib_get_mr can return ERR_PTR(-ENODEV) if the conn (4th) argument is NULL.\n Thus ret may be -ENODEV in which case the code in question will execute.\n\nConclusion:\n* cp may be NULL at the point where this patch adds a check;\n this patch does seem to address a possible bug" } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "affects": { "vendor": { "vendor_data": [ { "vendor_name": "Linux", "product": { "product_data": [ { "product_name": "Linux", "version": { "version_data": [ { "version_affected": "<", "version_name": "786854141057", "version_value": "d275de8ea7be" }, { "version_affected": "<", "version_name": "997efea2bf3a", "version_value": "bcd46782e2ec" }, { "version_affected": "<", "version_name": "9dfc15a10dfd", "version_value": "cfb786b03b03" }, { "version_affected": "<", "version_name": "b562ebe21ed9", "version_value": "d49fac38479b" }, { "version_affected": "<", "version_name": "998fd719e6d6", "version_value": "cbaac2e5488e" }, { "version_affected": "<", "version_name": "2b505d052807", "version_value": "92309bed3c5f" }, { "version_affected": "<", "version_name": "c055fc00c07b", "version_value": "6794090c7420" }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "versions": [ { "version": "6.8", "status": "affected" }, { "version": "0", "lessThan": "6.8", "status": "unaffected", "versionType": "custom" }, { "version": "4.19.312", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.4.274", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.10.215", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.15.154", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.1.85", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.6.26", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.8.5", "lessThanOrEqual": "6.8.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.9", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ], "defaultStatus": "affected" } } ] } } ] } } ] } }, "references": { "reference_data": [ { "url": "https://git.kernel.org/stable/c/d275de8ea7be3a453629fddae41d4156762e814c", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/d275de8ea7be3a453629fddae41d4156762e814c" }, { "url": "https://git.kernel.org/stable/c/bcd46782e2ec3825d10c1552fcb674d491cc09f9", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/bcd46782e2ec3825d10c1552fcb674d491cc09f9" }, { "url": "https://git.kernel.org/stable/c/cfb786b03b03c5ff38882bee38525eb9987e4d14", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/cfb786b03b03c5ff38882bee38525eb9987e4d14" }, { "url": "https://git.kernel.org/stable/c/d49fac38479bfdaec52b3ea274d290c47a294029", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/d49fac38479bfdaec52b3ea274d290c47a294029" }, { "url": "https://git.kernel.org/stable/c/cbaac2e5488ed54833897264a5ffb2a341a9f196", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/cbaac2e5488ed54833897264a5ffb2a341a9f196" }, { "url": "https://git.kernel.org/stable/c/92309bed3c5fbe2ccd4c45056efd42edbd06162d", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/92309bed3c5fbe2ccd4c45056efd42edbd06162d" }, { "url": "https://git.kernel.org/stable/c/6794090c742008c53b344b35b021d4a3093dc50a", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/6794090c742008c53b344b35b021d4a3093dc50a" }, { "url": "https://git.kernel.org/stable/c/62fc3357e079a07a22465b9b6ef71bb6ea75ee4b", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/62fc3357e079a07a22465b9b6ef71bb6ea75ee4b" }, { "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html", "refsource": "MISC", "name": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html" }, { "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html", "refsource": "MISC", "name": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html" } ] }, "generator": { "engine": "bippy-a5840b7849dd" } }