What is CVE-2022-50630?

CVE-2022-50630 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, affecting Linux kernel versions from 4.11 onward and patched in 5.10.150, 5.15.75, 5.19.17 and others. CVE-2022-50630 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-50630?

CVE-2022-50630 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2022-50630?

Yes, CVE-2022-50630 has been patched. Fixed versions include 5.10.150, 5.15.75, 5.19.17 and others. If you are running Linux kernel 4.11 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-50630 actively exploited?

CVE-2022-50630 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-50630

High

In the Linux kernel, the following vulnerability has been resolved: mm: hugetlb: fix UAF in hugetlb_handle_userfault The vma_lock and hugetlb_fault_mutex are dropped before handling userfault and reacquire them again after handle_userfault(), but reacquire the vma_lock could lead to UAF[1,2] due to the following race, hugetlb_fault hugetlb_no_page /*unlock vma_lock */ hugetlb_handle_userfault handle_userfault /* unlock mm->mmap_lock*/ vm_mmap_pgoff do_mmap mmap_region munmap_vma_range /* clean old vma */ /* lock vma_lock again <--- UAF */ /* unlock vma_lock */ Since the vma_lock will unlock immediately after hugetlb_handle_userfault(), let's drop the unneeded lock and unlock in hugetlb_handle_userfault() to fix the issue. [1] https://lore.kernel.org/linux-mm/[email protected]/ [2] https://lore.kernel.org/linux-mm/[email protected]/

Package Linux Kernel

Published 2025-12-08

Last modified 2026-08-04

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected versions

Linux kernel versions 4.11 and later are affected. Fixed in 5.10.150, 5.15.75, 5.19.17, 6.0.3, 6.1 and their respective stable series.

Affected from

≥ 4.11

Fixed in

✓ 5.10.150 5.10.x ✓ 5.15.75 5.15.x ✓ 5.19.17 5.19.x ✓ 6.0.3 6.0.x ✓ 6.1

References

5 total

Details

CVE ID CVE-2022-50630

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2025-12-08

Modified 2026-08-04

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-50630?

CVE-2022-50630 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . It affects Linux kernel versions from 4.11 onward and has been patched in 5.10.150, 5.15.75, 5.19.17 and others. CVE-2022-50630 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-50630?

CVE-2022-50630 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2022-50630?

Yes. CVE-2022-50630 has been patched. Fixed versions include 5.10.150, 5.15.75, 5.19.17 and others. If you are running Linux kernel 4.11 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-50630 actively exploited?

No. CVE-2022-50630 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.