5.5

CVE-2026-45880

PCI/P2PDMA: Release per-CPU pgmap ref when vm_insert_page() fails

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().
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.128
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.75
Linux ≫ Linux Kernel Version >= 6.13 < 6.18.14
Linux ≫ Linux Kernel Version >= 6.19 < 6.19.4
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.16% 0.05
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/baa42b756d183a59572f3890981a3d32b8d05d40
Patch
https://git.kernel.org/stable/c/51b7181cfbedf289ce794b6d97a1c596c309ec38
Patch
https://git.kernel.org/stable/c/e19cce88ec4c4877f4ff2469099b9cf23cc3e93e
Patch
https://git.kernel.org/stable/c/a1f4dc72efc3204db95d052058d785cad7ce755f
Patch
https://git.kernel.org/stable/c/6220694c52a5a04102b48109e4f24e958b559bd3
Patch