CVE-2026-45880

In the Linux kernel, the following vulnerability has been resolved: PCI/P2PDMA: Release per-CPU pgmap ref when vm_insert_page() fails When vm_insert_page() fails in p2pmem_alloc_mmap(), p2pmem_alloc_mmap() doesn't invoke percpu_ref_put() to free the per-CPU ref of pgmap acquired after gen_pool_alloc_owner(), and memunmap_pages() will hang forever when trying to remove the PCI device. Fix it by adding the missed percpu_ref_put().

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/51b7181cfbedf289ce794b6d97a1c596c309ec38	Patch
https://git.kernel.org/stable/c/6220694c52a5a04102b48109e4f24e958b559bd3	Patch
https://git.kernel.org/stable/c/a1f4dc72efc3204db95d052058d785cad7ce755f	Patch
https://git.kernel.org/stable/c/baa42b756d183a59572f3890981a3d32b8d05d40	Patch
https://git.kernel.org/stable/c/e19cce88ec4c4877f4ff2469099b9cf23cc3e93e	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::::::::

History

No history.

Information

Published : 2026-05-27 14:17

Updated : 2026-06-25 21:12

NVD link : CVE-2026-45880

Mitre link : CVE-2026-45880

CVE.ORG link : CVE-2026-45880

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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