CVE-2026-45880
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2026-05-27
Modified: 2026-11-06
First seen: 2026-11-06
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
Description
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().
Affected Software (7)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | 7e9c7ef83d785236f5a8c3761dd053fae9b92fb8 < baa42b756d183a59572f3890981a3d32b8d05d40 |
| Linux | Linux | 7e9c7ef83d785236f5a8c3761dd053fae9b92fb8 < 51b7181cfbedf289ce794b6d97a1c596c309ec38 |
| Linux | Linux | 7e9c7ef83d785236f5a8c3761dd053fae9b92fb8 < e19cce88ec4c4877f4ff2469099b9cf23cc3e93e |
| Linux | Linux | 7e9c7ef83d785236f5a8c3761dd053fae9b92fb8 < a1f4dc72efc3204db95d052058d785cad7ce755f |
| Linux | Linux | 7e9c7ef83d785236f5a8c3761dd053fae9b92fb8 < 6220694c52a5a04102b48109e4f24e958b559bd3 |
| Linux | Linux | 6.2 |
| linux | linux_kernel | 6.2 – 6.6.128 |