{"id":"CVE-2023-54318","revision":"9c8130245a384bd6b816c2b19c11f58b","records":[{"revision":"9c8130245a384bd6b816c2b19c11f58b","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2023-54318","aliases":[],"title":"net/smc: use smc_lgr_list.lock to protect smc_lgr_list.list iterate in smcr_port_add","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: use smc_lgr_list.lock to protect smc_lgr_list.list iterate in smcr_port_add\n\nWhile doing smcr_port_add, there maybe linkgroup add into or delete\nfrom smc_lgr_list.list at the same time, which may result kernel crash.\nSo, use smc_lgr_list.lock to protect smc_lgr_list.list iterate in\nsmcr_port_add.\n\nThe crash calltrace show below:\nBUG: kernel NULL pointer dereference, address: 0000000000000000\nPGD 0 P4D 0\nOops: 0000 [#1] SMP NOPTI\nCPU: 0 PID: 559726 Comm: kworker/0:92 Kdump: loaded Tainted: G\nHardware name: Alibaba Cloud Alibaba Cloud ECS, BIOS 449e491 04/01/2014\nWorkqueue: events smc_ib_port_event_work [smc]\nRIP: 0010:smcr_port_add+0xa6/0xf0 [smc]\nRSP: 0000:ffffa5a2c8f67de0 EFLAGS: 00010297\nRAX: 0000000000000001 RBX: ffff9935e0650000 RCX: 0000000000000000\nRDX: 0000000000000010 RSI: ffff9935e0654290 RDI: ffff9935c8560000\nRBP: 0000000000000000 R08: 0000000000000000 R09: ffff9934c0401918\nR10: 0000000000000000 R11: ffffffffb4a5c278 R12: ffff99364029aae4\nR13: ffff99364029aa00 R14: 00000000ffffffed R15: ffff99364029ab08\nFS:  0000000000000000(0000) GS:ffff994380600000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000000000000 CR3: 0000000f06a10003 CR4: 0000000002770ef0\nPKRU: 55555554\nCall Trace:\n smc_ib_port_event_work+0x18f/0x380 [smc]\n process_one_work+0x19b/0x340\n worker_thread+0x30/0x370\n ? process_one_work+0x340/0x340\n kthread+0x114/0x130\n ? __kthread_cancel_work+0x50/0x50\n ret_from_fork+0x1f/0x30","state":0,"publishedAt":"2025-12-30T12:23:48.134+00:00","modifiedAt":"2026-10-15T21:41:44.789+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                        \"net/smc/smc_core.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"1f90a05d9ff907c70456e7c9d7058372679a88c6\",\n                            \"lessThan\": \"d1c6c93c27a4bf48006ab16cd9b38d85559d7645\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"1f90a05d9ff907c70456e7c9d7058372679a88c6\",\n                            \"lessThan\": \"06b4934ab2b534bb92935c7601852066ebb9eab8\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"1f90a05d9ff907c70456e7c9d7058372679a88c6\",\n                            \"lessThan\": \"70c8d17007dc4a07156b7da44509527990e569b3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"1f90a05d9ff907c70456e7c9d7058372679a88c6\",\n                            \"lessThan\": \"b717463610a27fc0b58484cfead7a623d5913e61\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"1f90a05d9ff907c70456e7c9d7058372679a88c6\",\n                            \"lessThan\": \"f5146e3ef0a9eea405874b36178c19a4863b8989\",\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                        \"net/smc/smc_core.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.8\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.8\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.195\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.132\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.54\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.5.4\",\n                            \"lessThanOrEqual\": \"6.5.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/d1c6c93c27a4bf48006ab16cd9b38d85559d7645","https://git.kernel.org/stable/c/06b4934ab2b534bb92935c7601852066ebb9eab8","https://git.kernel.org/stable/c/70c8d17007dc4a07156b7da44509527990e569b3","https://git.kernel.org/stable/c/b717463610a27fc0b58484cfead7a623d5913e61","https://git.kernel.org/stable/c/f5146e3ef0a9eea405874b36178c19a4863b8989"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2023-54318","license":"CVE Program Terms of Use","key":"cve-program:CVE-2023-54318","identifiers":["CVE-2023-54318"]},"retained":false,"historicalAffected":[]}],"coverage":[]}