{"id":"CVE-2024-35902","title":"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…","summary":"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…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-476"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 4.19.310, < 4.19.312","linux_kernel >= 5.4.272, < 5.7.274","linux_kernel >= 5.10.213, < 5.10.215","linux_kernel >= 5.15.152, < 5.15.154","linux_kernel >= 6.1.82, < 6.1.85","linux_kernel >= 6.6.22, < 6.6.26","linux_kernel >= 6.7.10, < 6.8.5","linux_kernel = 6.9","debian_linux = 10.0"],"patched":["linux_kernel 6.8.5"],"published":"2024-05-19","updated":"2026-10-15","sourceUpdated":"2026-10-15T01:17:52.103","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2024-35902","references":[{"url":"https://git.kernel.org/stable/c/62fc3357e079a07a22465b9b6ef71bb6ea75ee4b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6794090c742008c53b344b35b021d4a3093dc50a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/92309bed3c5fbe2ccd4c45056efd42edbd06162d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bcd46782e2ec3825d10c1552fcb674d491cc09f9","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/cbaac2e5488ed54833897264a5ffb2a341a9f196","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/cfb786b03b03c5ff38882bee38525eb9987e4d14","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d275de8ea7be3a453629fddae41d4156762e814c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d49fac38479bfdaec52b3ea274d290c47a294029","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/62fc3357e079a07a22465b9b6ef71bb6ea75ee4b","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/6794090c742008c53b344b35b021d4a3093dc50a","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/92309bed3c5fbe2ccd4c45056efd42edbd06162d","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/bcd46782e2ec3825d10c1552fcb674d491cc09f9","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/cbaac2e5488ed54833897264a5ffb2a341a9f196","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/cfb786b03b03c5ff38882bee38525eb9987e4d14","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/d275de8ea7be3a453629fddae41d4156762e814c","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/d49fac38479bfdaec52b3ea274d290c47a294029","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-265688.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org"],"epss":0.00223,"epssPercentile":0.12832,"ingestedAt":"2026-10-15T03:30:12.686Z","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2024-05-20T14:09:14.303997Z"},"slug":"CVE-2024-35902","body":"## Overview\n\nIn 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\n\n## Affected\n\n- `linux_kernel >= 4.19.310, < 4.19.312`\n- `linux_kernel >= 5.4.272, < 5.7.274`\n- `linux_kernel >= 5.10.213, < 5.10.215`\n- `linux_kernel >= 5.15.152, < 5.15.154`\n- `linux_kernel >= 6.1.82, < 6.1.85`\n- `linux_kernel >= 6.6.22, < 6.6.26`\n- `linux_kernel >= 6.7.10, < 6.8.5`\n- `linux_kernel = 6.9`\n- `debian_linux = 10.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.8.5`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}