{"id":"CVE-2022-50473","state":"PUBLISHED","title":"cpufreq: Init completion before kobject_init_and_add()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncpufreq: Init completion before kobject_init_and_add()\n\nIn cpufreq_policy_alloc(), it will call uninitialed completion in\ncpufreq_sysfs_release() when kobject_init_and_add() fails. And\nthat will cause a crash such as the following page fault in complete:\n\nBUG: unable to handle page fault for address: fffffffffffffff8\n[..]\nRIP: 0010:complete+0x98/0x1f0\n[..]\nCall Trace:\n kobject_put+0x1be/0x4c0\n cpufreq_online.cold+0xee/0x1fd\n cpufreq_add_dev+0x183/0x1e0\n subsys_interface_register+0x3f5/0x4e0\n cpufreq_register_driver+0x3b7/0x670\n acpi_cpufreq_init+0x56c/0x1000 [acpi_cpufreq]\n do_one_initcall+0x13d/0x780\n do_init_module+0x1c3/0x630\n load_module+0x6e67/0x73b0\n __do_sys_finit_module+0x181/0x240\n do_syscall_64+0x35/0x80\n entry_SYSCALL_64_after_hwframe+0x63/0xcd","publishedAt":"2025-10-04T15:16:34.859Z","updatedAt":"2026-05-23T15:24:31.068Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"4ebe36c94aed95de71a8ce6a6762226d31c938ee","status":"affected","lessThan":"3cdd91a9163248935720927531066b74f57aa43b","versionType":"git"},{"version":"4ebe36c94aed95de71a8ce6a6762226d31c938ee","status":"affected","lessThan":"e379b88a8f8cffc99b318e028705ed9e3da0e1e0","versionType":"git"},{"version":"4ebe36c94aed95de71a8ce6a6762226d31c938ee","status":"affected","lessThan":"8fb4c98f20dfca1237de2e3dfdbe78d156784fd3","versionType":"git"},{"version":"4ebe36c94aed95de71a8ce6a6762226d31c938ee","status":"affected","lessThan":"d88540acfc7a17079021d866de914112c396edb1","versionType":"git"},{"version":"4ebe36c94aed95de71a8ce6a6762226d31c938ee","status":"affected","lessThan":"e7c0c943ed675b66d4bbb16c51c6a3bb58da047e","versionType":"git"},{"version":"4ebe36c94aed95de71a8ce6a6762226d31c938ee","status":"affected","lessThan":"5c51054896bcce1d33d39fead2af73fec24f40b6","versionType":"git"},{"version":"e977b1477a6725868302957e6b5c330220391797","status":"affected","versionType":"git"},{"version":"5.1.6","status":"affected","lessThan":"5.2","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/cpufreq/cpufreq.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.2","versionType":"semver"},{"version":"5.4.229","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.163","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.87","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.18","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1.4","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/cpufreq/cpufreq.c"]}],"references":["https://git.kernel.org/stable/c/3cdd91a9163248935720927531066b74f57aa43b","https://git.kernel.org/stable/c/e379b88a8f8cffc99b318e028705ed9e3da0e1e0","https://git.kernel.org/stable/c/8fb4c98f20dfca1237de2e3dfdbe78d156784fd3","https://git.kernel.org/stable/c/d88540acfc7a17079021d866de914112c396edb1","https://git.kernel.org/stable/c/e7c0c943ed675b66d4bbb16c51c6a3bb58da047e","https://git.kernel.org/stable/c/5c51054896bcce1d33d39fead2af73fec24f40b6"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/50xxx/CVE-2022-50473.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-50473","state":"PUBLISHED","datePublished":"2025-10-04T15:16:34.859Z","dateUpdated":"2026-05-23T15:24:31.068Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-10-04T15:13:33.467Z"},"containers":{"cna":{"title":"cpufreq: Init completion before kobject_init_and_add()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncpufreq: Init completion before kobject_init_and_add()\n\nIn cpufreq_policy_alloc(), it will call uninitialed completion in\ncpufreq_sysfs_release() when kobject_init_and_add() fails. And\nthat will cause a crash such as the following page fault in complete:\n\nBUG: unable to handle page fault for address: fffffffffffffff8\n[..]\nRIP: 0010:complete+0x98/0x1f0\n[..]\nCall Trace:\n kobject_put+0x1be/0x4c0\n cpufreq_online.cold+0xee/0x1fd\n cpufreq_add_dev+0x183/0x1e0\n subsys_interface_register+0x3f5/0x4e0\n cpufreq_register_driver+0x3b7/0x670\n acpi_cpufreq_init+0x56c/0x1000 [acpi_cpufreq]\n do_one_initcall+0x13d/0x780\n do_init_module+0x1c3/0x630\n load_module+0x6e67/0x73b0\n __do_sys_finit_module+0x181/0x240\n do_syscall_64+0x35/0x80\n entry_SYSCALL_64_after_hwframe+0x63/0xcd"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"4ebe36c94aed95de71a8ce6a6762226d31c938ee","status":"affected","lessThan":"3cdd91a9163248935720927531066b74f57aa43b","versionType":"git"},{"version":"4ebe36c94aed95de71a8ce6a6762226d31c938ee","status":"affected","lessThan":"e379b88a8f8cffc99b318e028705ed9e3da0e1e0","versionType":"git"},{"version":"4ebe36c94aed95de71a8ce6a6762226d31c938ee","status":"affected","lessThan":"8fb4c98f20dfca1237de2e3dfdbe78d156784fd3","versionType":"git"},{"version":"4ebe36c94aed95de71a8ce6a6762226d31c938ee","status":"affected","lessThan":"d88540acfc7a17079021d866de914112c396edb1","versionType":"git"},{"version":"4ebe36c94aed95de71a8ce6a6762226d31c938ee","status":"affected","lessThan":"e7c0c943ed675b66d4bbb16c51c6a3bb58da047e","versionType":"git"},{"version":"4ebe36c94aed95de71a8ce6a6762226d31c938ee","status":"affected","lessThan":"5c51054896bcce1d33d39fead2af73fec24f40b6","versionType":"git"},{"version":"e977b1477a6725868302957e6b5c330220391797","status":"affected","versionType":"git"},{"version":"5.1.6","status":"affected","lessThan":"5.2","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/cpufreq/cpufreq.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.2","versionType":"semver"},{"version":"5.4.229","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.163","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.87","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.18","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1.4","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/cpufreq/cpufreq.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/3cdd91a9163248935720927531066b74f57aa43b"},{"url":"https://git.kernel.org/stable/c/e379b88a8f8cffc99b318e028705ed9e3da0e1e0"},{"url":"https://git.kernel.org/stable/c/8fb4c98f20dfca1237de2e3dfdbe78d156784fd3"},{"url":"https://git.kernel.org/stable/c/d88540acfc7a17079021d866de914112c396edb1"},{"url":"https://git.kernel.org/stable/c/e7c0c943ed675b66d4bbb16c51c6a3bb58da047e"},{"url":"https://git.kernel.org/stable/c/5c51054896bcce1d33d39fead2af73fec24f40b6"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-23T15:24:31.068Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"5.4.229"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"5.10.163"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"5.15.87"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.0.18"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.1.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.1.6"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}