{"id":"CVE-2023-54302","summary":"RDMA/irdma: Fix data race on CQP completion stats","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/irdma: Fix data race on CQP completion stats\n\nCQP completion statistics is read lockesly in irdma_wait_event and\nirdma_check_cqp_progress while it can be updated in the completion\nthread irdma_sc_ccq_get_cqe_info on another CPU as KCSAN reports.\n\nMake completion statistics an atomic variable to reflect coherent updates\nto it. This will also avoid load/store tearing logic bug potentially\npossible by compiler optimizations.\n\n[77346.170861] BUG: KCSAN: data-race in irdma_handle_cqp_op [irdma] / irdma_sc_ccq_get_cqe_info [irdma]\n\n[77346.171383] write to 0xffff8a3250b108e0 of 8 bytes by task 9544 on cpu 4:\n[77346.171483]  irdma_sc_ccq_get_cqe_info+0x27a/0x370 [irdma]\n[77346.171658]  irdma_cqp_ce_handler+0x164/0x270 [irdma]\n[77346.171835]  cqp_compl_worker+0x1b/0x20 [irdma]\n[77346.172009]  process_one_work+0x4d1/0xa40\n[77346.172024]  worker_thread+0x319/0x700\n[77346.172037]  kthread+0x180/0x1b0\n[77346.172054]  ret_from_fork+0x22/0x30\n\n[77346.172136] read to 0xffff8a3250b108e0 of 8 bytes by task 9838 on cpu 2:\n[77346.172234]  irdma_handle_cqp_op+0xf4/0x4b0 [irdma]\n[77346.172413]  irdma_cqp_aeq_cmd+0x75/0xa0 [irdma]\n[77346.172592]  irdma_create_aeq+0x390/0x45a [irdma]\n[77346.172769]  irdma_rt_init_hw.cold+0x212/0x85d [irdma]\n[77346.172944]  irdma_probe+0x54f/0x620 [irdma]\n[77346.173122]  auxiliary_bus_probe+0x66/0xa0\n[77346.173137]  really_probe+0x140/0x540\n[77346.173154]  __driver_probe_device+0xc7/0x220\n[77346.173173]  driver_probe_device+0x5f/0x140\n[77346.173190]  __driver_attach+0xf0/0x2c0\n[77346.173208]  bus_for_each_dev+0xa8/0xf0\n[77346.173225]  driver_attach+0x29/0x30\n[77346.173240]  bus_add_driver+0x29c/0x2f0\n[77346.173255]  driver_register+0x10f/0x1a0\n[77346.173272]  __auxiliary_driver_register+0xbc/0x140\n[77346.173287]  irdma_init_module+0x55/0x1000 [irdma]\n[77346.173460]  do_one_initcall+0x7d/0x410\n[77346.173475]  do_init_module+0x81/0x2c0\n[77346.173491]  load_module+0x1232/0x12c0\n[77346.173506]  __do_sys_finit_module+0x101/0x180\n[77346.173522]  __x64_sys_finit_module+0x3c/0x50\n[77346.173538]  do_syscall_64+0x39/0x90\n[77346.173553]  entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\n[77346.173634] value changed: 0x0000000000000094 -\u003e 0x0000000000000095","modified":"2026-03-31T17:29:28.629437Z","published":"2025-12-30T12:23:37.165Z","related":["SUSE-SU-2026:0263-1","SUSE-SU-2026:0278-1","SUSE-SU-2026:0281-1","SUSE-SU-2026:0293-1","SUSE-SU-2026:0315-1","SUSE-SU-2026:0317-1","SUSE-SU-2026:0411-1","SUSE-SU-2026:0617-1","SUSE-SU-2026:20477-1","SUSE-SU-2026:20498-1","SUSE-SU-2026:20845-1","SUSE-SU-2026:20876-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54302.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/2623ca92cd8f9668edabe9e4f4a3cf77fd7115f2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4e1a5842a359ee18d5a9e75097d7cf4d93e233bb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bf0f9f65b7fe36ea9d2e23263dcefc90255d7b1f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f2c3037811381f9149243828c7eb9a1631df9f9c"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54302.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-54302"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"915cc7ac0f8e2a23675ee896e87f17c7d3c47089"},{"fixed":"bf0f9f65b7fe36ea9d2e23263dcefc90255d7b1f"},{"fixed":"4e1a5842a359ee18d5a9e75097d7cf4d93e233bb"},{"fixed":"2623ca92cd8f9668edabe9e4f4a3cf77fd7115f2"},{"fixed":"f2c3037811381f9149243828c7eb9a1631df9f9c"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-54302.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.14.0"},{"fixed":"5.15.124"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.43"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.4.8"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-54302.json"}}],"schema_version":"1.7.5"}