Answer in brief
CVE-2026-45880 records a Medium severity (CVSS 5.5) vulnerability in PCI/P2PDMA: Release per-CPU pgmap ref when vm_insert_page() fails. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=7e9c7ef83d785236f5a8c3761dd053fae9b92fb8 <baa42b756d183a59572f3890981a3d32b8d05d40 || >=7e9c7ef83d785236f5a8c3761dd053fae9b92fb8 <51b7181cfbedf289ce794b6d97a1c596c309ec38 || >=7e9c7ef83d785236f5a8c3761dd053fae9b92fb8 <e19cce88ec4c4877f4ff2469099b9cf23cc3e93e || >=7e9c7ef83d785236f5a8c3761dd053fae9b92fb8 <a1f4dc72efc3204db95d052058d785cad7ce755f || >=7e9c7ef83d785236f5a8c3761dd053fae9b92fb8 <6220694c52a5a04102b48109e4f24e958b559bd3 | baa42b756d183a59572f3890981a3d32b8d05d40, 51b7181cfbedf289ce794b6d97a1c596c309ec38, e19cce88ec4c4877f4ff2469099b9cf23cc3e93e, a1f4dc72efc3204db95d052058d785cad7ce755f, 6220694c52a5a04102b48109e4f24e958b559bd3 |
| Linux/Linuxgeneric | 6.2 | Not reported |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jun 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 25, 2026
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().
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-45880 records a Medium severity (CVSS 5.5) vulnerability in PCI/P2PDMA: Release per-CPU pgmap ref when vm_insert_page() fails. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=7e9c7ef83d785236f5a8c3761dd053fae9b92fb8 <baa42b756d183a59572f3890981a3d32b8d05d40 || >=7e9c7ef83d785236f5a8c3761dd053fae9b92fb8 <51b7181cfbedf289ce794b6d97a1c596c309ec38 || >=7e9c7ef83d785236f5a8c3761dd053fae9b92fb8 <e19cce88ec4c4877f4ff2469099b9cf23cc3e93e || >=7e9c7ef83d785236f5a8c3761dd053fae9b92fb8 <a1f4dc72efc3204db95d052058d785cad7ce755f || >=7e9c7ef83d785236f5a8c3761dd053fae9b92fb8 <6220694c52a5a04102b48109e4f24e958b559bd3 | baa42b756d183a59572f3890981a3d32b8d05d40, 51b7181cfbedf289ce794b6d97a1c596c309ec38, e19cce88ec4c4877f4ff2469099b9cf23cc3e93e, a1f4dc72efc3204db95d052058d785cad7ce755f, 6220694c52a5a04102b48109e4f24e958b559bd3 |
| Linux/Linuxgeneric | 6.2 | Not reported |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jun 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 25, 2026
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().
Quoted source text, attributed separately from HOL analysis.