CVE-2022-50285

In the Linux kernel, the following vulnerability has been resolved: mm,hugetlb: take hugetlb_lock before decrementing h->resv_huge_pages The h->*_huge_pages counters are protected by the hugetlb_lock, but alloc_huge_page has a corner case where it can decrement the counter outside of the lock. This could lead to a corrupted value of h->resv_huge_pages, which we have observed on our systems. Take the hugetlb_lock before decrementing h->resv_huge_pages to avoid a potential race.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/112a005d1ded04a4b41b6d01833cc0bda90625cc	Patch
https://git.kernel.org/stable/c/11993652d0b49e27272db0a37aa828d8a3a4b92b	Patch
https://git.kernel.org/stable/c/12df140f0bdfae5dcfc81800970dd7f6f632e00c	Patch
https://git.kernel.org/stable/c/2b35432d324898ec41beb27031d2a1a864a4d40e	Patch
https://git.kernel.org/stable/c/3e50a07b6a5fcd39df1534d3fdaca4292a65efe6	Patch
https://git.kernel.org/stable/c/568e3812b1778b4c0c229649b59977d88f400ece	Patch
https://git.kernel.org/stable/c/629c986e19fe9481227c7cdfd9a105bbc104d245	Patch
https://git.kernel.org/stable/c/c828fab903725279aa9dc6ae3d44bb7e4778f92c	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:4.4:-::::::
	cpe:2.3:o:linux:linux_kernel:4.4:rc5::::::
	cpe:2.3:o:linux:linux_kernel:4.4:rc6::::::
	cpe:2.3:o:linux:linux_kernel:4.4:rc7::::::
	cpe:2.3:o:linux:linux_kernel:4.4:rc8::::::
	cpe:2.3:o:linux:linux_kernel:6.1:rc1::::::

History

No history.

Information

Published : 2025-09-15 15:15

Updated : 2025-12-04 18:54

NVD link : CVE-2022-50285

Mitre link : CVE-2022-50285

CVE.ORG link : CVE-2022-50285

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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