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CVE-2026-45880
Published: May 27, 2026
Modified: May 27, 2026
PUBLISHED
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().
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected 7e9c7ef83d785236f5a8c3761dd053fae9b92fb8 - < baa42b756d183a59572f3890981a3d32b8d05d40affected 7e9c7ef83d785236f5a8c3761dd053fae9b92fb8 - < 51b7181cfbedf289ce794b6d97a1c596c309ec38affected 7e9c7ef83d785236f5a8c3761dd053fae9b92fb8 - < e19cce88ec4c4877f4ff2469099b9cf23cc3e93eaffected 7e9c7ef83d785236f5a8c3761dd053fae9b92fb8 - < a1f4dc72efc3204db95d052058d785cad7ce755faffected 7e9c7ef83d785236f5a8c3761dd053fae9b92fb8 - < 6220694c52a5a04102b48109e4f24e958b559bd3 |
Linux | Linux | affected 6.2unaffected 0 - < 6.2unaffected 6.6.128 - <= 6.6.*unaffected 6.12.75 - <= 6.12.*unaffected 6.18.14 - <= 6.18.*+2 more versions |
References
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