{"vulnerability": "CVE-2024-36476", "sightings": [{"uuid": "449c6cb9-45e2-41b9-95bd-4e7047f53708", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2024-36476", "type": "seen", "source": "https://bsky.app/profile/cve-notifications.bsky.social/post/3lfrtxdwgnn2f", "content": "", "creation_timestamp": "2025-01-15T13:16:02.173279Z"}, {"uuid": "1c8330e6-2921-4ccd-9b92-f4da199c2720", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2024-36476", "type": "published-proof-of-concept", "source": "https://t.me/DarkWebInformer_CVEAlerts/1749", "content": "\ud83d\udd17 DarkWebInformer.com - Cyber Threat Intelligence\n\ud83d\udccc CVE ID: CVE-2024-36476\n\ud83d\udd39 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/\n\ud83d\udccf Published: 2025-01-15T13:10:20.507Z\n\ud83d\udccf Modified: 2025-01-15T13:10:20.507Z\n\ud83d\udd17 References:\n1. https://git.kernel.org/stable/c/7eaa71f56a6f7ab87957213472dc6d4055862722\n2. https://git.kernel.org/stable/c/143378075904e78b3b2a810099bcc3b3d82d762f\n3. https://git.kernel.org/stable/c/32e1e748a85bd52b20b3857d80fd166d22fa455a\n4. https://git.kernel.org/stable/c/b238f61cc394d5fef27b26d7d9aa383ebfddabb0\n5. https://git.kernel.org/stable/c/6ffb5c1885195ae5211a12b4acd2d51843ca41b0\n6. https://git.kernel.org/stable/c/fb514b31395946022f13a08e06a435f53cf9e8b3", "creation_timestamp": "2025-01-15T14:17:37.000000Z"}]}