CVE-2026-45880: Linux

Описание

Оригинално описание

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().

Засегнати продукти

• Linux Linux: 7e9c7ef83d785236f5a8c3761dd053fae9b92fb8 преди baa42b756d183a59572f3890981a3d32b8d05d40; 7e9c7ef83d785236f5a8c3761dd053fae9b92fb8 преди 51b7181cfbedf289ce794b6d97a1c596c309ec38; 7e9c7ef83d785236f5a8c3761dd053fae9b92fb8 преди e19cce88ec4c4877f4ff2469099b9cf23cc3e93e; 7e9c7ef83d785236f5a8c3761dd053fae9b92fb8 преди a1f4dc72efc3204db95d052058d785cad7ce755f; 7e9c7ef83d785236f5a8c3761dd053fae9b92fb8 преди 6220694c52a5a04102b48109e4f24e958b559bd3
• Linux Linux: 6.2; преди 6.2; 6.6.128 до 6.6.*; 6.12.75 до 6.12.*; 6.18.14 до 6.18.*; 6.19.4 до 6.19.*; от 7.0 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-45880
• https://nvd.nist.gov/vuln/detail/CVE-2026-45880
• https://git.kernel.org/stable/c/baa42b756d183a59572f3890981a3d32b8d05d40
• https://git.kernel.org/stable/c/51b7181cfbedf289ce794b6d97a1c596c309ec38
• https://git.kernel.org/stable/c/e19cce88ec4c4877f4ff2469099b9cf23cc3e93e
• https://git.kernel.org/stable/c/a1f4dc72efc3204db95d052058d785cad7ce755f
• https://git.kernel.org/stable/c/6220694c52a5a04102b48109e4f24e958b559bd3