{"id":"CVE-2022-49905","revision":"2cbe1f586c7f4db0bacdec71ed58bf60","records":[{"revision":"2cbe1f586c7f4db0bacdec71ed58bf60","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2022-49905","aliases":[],"title":"net/smc: Fix possible leaked pernet namespace in smc_init()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: Fix possible leaked pernet namespace in smc_init()\n\nIn smc_init(), register_pernet_subsys(&smc_net_stat_ops) is called\nwithout any error handling.\nIf it fails, registering of &smc_net_ops won't be reverted.\nAnd if smc_nl_init() fails, &smc_net_stat_ops itself won't be reverted.\n\nThis leaves wild ops in subsystem linkedlist and when another module\ntries to call register_pernet_operations() it triggers page fault:\n\nBUG: unable to handle page fault for address: fffffbfff81b964c\nRIP: 0010:register_pernet_operations+0x1b9/0x5f0\nCall Trace:\n  <TASK>\n  register_pernet_subsys+0x29/0x40\n  ebtables_init+0x58/0x1000 [ebtables]\n  ...","state":0,"publishedAt":"2025-05-01T14:10:49.621+00:00","modifiedAt":"2026-10-15T21:31:17.447+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/af_smc.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"194730a9beb52d2b030ea45e12d94868d4a0e6fd\",\n                            \"lessThan\": \"61defd6450a9ef4a1487090449999b0fd83518ef\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"194730a9beb52d2b030ea45e12d94868d4a0e6fd\",\n                            \"lessThan\": \"c97daf836f7caf81d3144b8cd2b2a51f9bc3bd09\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"194730a9beb52d2b030ea45e12d94868d4a0e6fd\",\n                            \"lessThan\": \"62ff373da2534534c55debe6c724c7fe14adb97f\",\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/af_smc.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.14\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.14\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.78\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.0.8\",\n                            \"lessThanOrEqual\": \"6.0.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/61defd6450a9ef4a1487090449999b0fd83518ef","https://git.kernel.org/stable/c/c97daf836f7caf81d3144b8cd2b2a51f9bc3bd09","https://git.kernel.org/stable/c/62ff373da2534534c55debe6c724c7fe14adb97f"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2022-49905","license":"CVE Program Terms of Use","key":"cve-program:CVE-2022-49905","identifiers":["CVE-2022-49905"]},"retained":false,"historicalAffected":[]}],"coverage":[]}