{"cve":"CVE-2024-36476","nvd":{"published":"2025-01-15T13:15:09.460","modified":"2026-08-04T11:18:25.513","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/rtrs: Ensure 'ib_sge list' is accessible\n\nMove the declaration of the 'ib_sge list' variable outside the\n'always_invalidate' block to ensure it remains accessible for use\nthroughout the function.\n\nPreviously, 'ib_sge list' was declared within the 'always_invalidate'\nblock, limiting its accessibility, then caused a\n'BUG: kernel NULL pointer dereference'[1].\n ? __die_body.cold+0x19/0x27\n ? page_fault_oops+0x15a/0x2d0\n ? search_module_extables+0x19/0x60\n ? search_bpf_extables+0x5f/0x80\n ? exc_page_fault+0x7e/0x180\n ? asm_exc_page_fault+0x26/0x30\n ? memcpy_orig+0xd5/0x140\n rxe_mr_copy+0x1c3/0x200 [rdma_rxe]\n ? rxe_pool_get_index+0x4b/0x80 [rdma_rxe]\n copy_data+0xa5/0x230 [rdma_rxe]\n rxe_requester+0xd9b/0xf70 [rdma_rxe]\n ? finish_task_switch.isra.0+0x99/0x2e0\n rxe_sender+0x13/0x40 [rdma_rxe]\n do_task+0x68/0x1e0 [rdma_rxe]\n process_one_work+0x177/0x330\n worker_thread+0x252/0x390\n ? __pfx_worker_thread+0x10/0x10\n\nThis change ensures the variable is available for subsequent operations\nthat require it.\n\n[1] https://lore.kernel.org/linux-rdma/6a1f3e8f-deb0-49f9-bc69-a9b03ecfcda7@fujitsu.com/","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-476"],"references":["https://git.kernel.org/stable/c/143378075904e78b3b2a810099bcc3b3d82d762f","https://git.kernel.org/stable/c/32e1e748a85bd52b20b3857d80fd166d22fa455a","https://git.kernel.org/stable/c/6ffb5c1885195ae5211a12b4acd2d51843ca41b0","https://git.kernel.org/stable/c/7eaa71f56a6f7ab87957213472dc6d4055862722","https://git.kernel.org/stable/c/b238f61cc394d5fef27b26d7d9aa383ebfddabb0"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:58:20.756570362+00:00"},"epss":{"cve":"CVE-2024-36476","score":0.00646,"percentile":0.50955,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}