CVE-2022-50473

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Source
https://cve.org/CVERecord?id=CVE-2022-50473
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-50473.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-50473
Downstream
Published
2025-10-04T15:16:34.859Z
Modified
2026-03-20T12:22:35.010243Z
Summary
cpufreq: Init completion before kobject_init_and_add()
Details

In the Linux kernel, the following vulnerability has been resolved:

cpufreq: Init completion before kobjectinitand_add()

In cpufreqpolicyalloc(), it will call uninitialed completion in cpufreqsysfsrelease() when kobjectinitand_add() fails. And that will cause a crash such as the following page fault in complete:

BUG: unable to handle page fault for address: fffffffffffffff8 [..] RIP: 0010:complete+0x98/0x1f0 [..] Call Trace: kobjectput+0x1be/0x4c0 cpufreqonline.cold+0xee/0x1fd cpufreqadddev+0x183/0x1e0 subsysinterfaceregister+0x3f5/0x4e0 cpufreqregisterdriver+0x3b7/0x670 acpicpufreqinit+0x56c/0x1000 [acpicpufreq] dooneinitcall+0x13d/0x780 doinitmodule+0x1c3/0x630 loadmodule+0x6e67/0x73b0 _dosysfinitmodule+0x181/0x240 dosyscall64+0x35/0x80 entrySYSCALL64afterhwframe+0x63/0xcd

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50473.json"
}
References

Affected packages

Git / 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
4ebe36c94aed95de71a8ce6a6762226d31c938ee
Fixed
3cdd91a9163248935720927531066b74f57aa43b
Fixed
e379b88a8f8cffc99b318e028705ed9e3da0e1e0
Fixed
8fb4c98f20dfca1237de2e3dfdbe78d156784fd3
Fixed
d88540acfc7a17079021d866de914112c396edb1
Fixed
e7c0c943ed675b66d4bbb16c51c6a3bb58da047e
Fixed
5c51054896bcce1d33d39fead2af73fec24f40b6
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
e977b1477a6725868302957e6b5c330220391797

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-50473.json"