{"id":"CVE-2026-23242","revision":"46544c76987e45eb98087f76c653c088","records":[{"revision":"46544c76987e45eb98087f76c653c088","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-23242","aliases":[],"title":"RDMA/siw: Fix potential NULL pointer dereference in header processing","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/siw: Fix potential NULL pointer dereference in header processing\n\nIf siw_get_hdr() returns -EINVAL before set_rx_fpdu_context(),\nqp->rx_fpdu can be NULL. The error path in siw_tcp_rx_data()\ndereferences qp->rx_fpdu->more_ddp_segs without checking, which\nmay lead to a NULL pointer deref. Only check more_ddp_segs when\nrx_fpdu is present.\n\nKASAN splat:\n[  101.384271] KASAN: null-ptr-deref in range [0x00000000000000c0-0x00000000000000c7]\n[  101.385869] RIP: 0010:siw_tcp_rx_data+0x13ad/0x1e50","state":0,"publishedAt":"2026-03-18T10:05:05.108+00:00","modifiedAt":"2026-10-19T18:35:39.941+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/infiniband/sw/siw/siw_qp_rx.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"8b6a361b8c482f22ac99c3273285ff16b23fba91\",\n                            \"lessThan\": \"ab61841633d10e56a58c1493a262f0d02dba2f5e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"8b6a361b8c482f22ac99c3273285ff16b23fba91\",\n                            \"lessThan\": \"8564dcc12fbb372d984ab45768cae9335777b274\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"8b6a361b8c482f22ac99c3273285ff16b23fba91\",\n                            \"lessThan\": \"ab957056192d6bd068b3759cb2077d859cca01f0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"8b6a361b8c482f22ac99c3273285ff16b23fba91\",\n                            \"lessThan\": \"ffba40b67663567481fa8a1ed5d2da36897c175d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"8b6a361b8c482f22ac99c3273285ff16b23fba91\",\n                            \"lessThan\": \"87b7a036d2c73d5bb3ae2d47dee23de465db3355\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"8b6a361b8c482f22ac99c3273285ff16b23fba91\",\n                            \"lessThan\": \"714c99e1dc8f85f446e05be02ba83972e981a817\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"8b6a361b8c482f22ac99c3273285ff16b23fba91\",\n                            \"lessThan\": \"ce025f7f5d070596194315eb2e4e89d568b8a755\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"8b6a361b8c482f22ac99c3273285ff16b23fba91\",\n                            \"lessThan\": \"14ab3da122bd18920ad57428f6cf4fade8385142\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/infiniband/sw/siw/siw_qp_rx.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.3\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.3\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.252\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.202\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.165\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.128\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.75\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.14\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.19.4\",\n                            \"lessThanOrEqual\": \"6.19.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.0\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/ab61841633d10e56a58c1493a262f0d02dba2f5e","https://git.kernel.org/stable/c/8564dcc12fbb372d984ab45768cae9335777b274","https://git.kernel.org/stable/c/ab957056192d6bd068b3759cb2077d859cca01f0","https://git.kernel.org/stable/c/ffba40b67663567481fa8a1ed5d2da36897c175d","https://git.kernel.org/stable/c/87b7a036d2c73d5bb3ae2d47dee23de465db3355","https://git.kernel.org/stable/c/714c99e1dc8f85f446e05be02ba83972e981a817","https://git.kernel.org/stable/c/ce025f7f5d070596194315eb2e4e89d568b8a755","https://git.kernel.org/stable/c/14ab3da122bd18920ad57428f6cf4fade8385142"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-23242","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-23242","identifiers":["CVE-2026-23242"]},"retained":false,"historicalAffected":[]}],"coverage":[]}