{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-45880","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-05-13T15:03:33.082Z","datePublished":"2026-05-27T12:16:52.117Z","dateUpdated":"2026-05-27T12:16:52.117Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-27T12:16:52.117Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI/P2PDMA: Release per-CPU pgmap ref when vm_insert_page() fails\n\nWhen vm_insert_page() fails in p2pmem_alloc_mmap(), p2pmem_alloc_mmap()\ndoesn't invoke percpu_ref_put() to free the per-CPU ref of pgmap acquired\nafter gen_pool_alloc_owner(), and memunmap_pages() will hang forever when\ntrying to remove the PCI device.\n\nFix it by adding the missed percpu_ref_put()."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/p2pdma.c"],"versions":[{"version":"7e9c7ef83d785236f5a8c3761dd053fae9b92fb8","lessThan":"baa42b756d183a59572f3890981a3d32b8d05d40","status":"affected","versionType":"git"},{"version":"7e9c7ef83d785236f5a8c3761dd053fae9b92fb8","lessThan":"51b7181cfbedf289ce794b6d97a1c596c309ec38","status":"affected","versionType":"git"},{"version":"7e9c7ef83d785236f5a8c3761dd053fae9b92fb8","lessThan":"e19cce88ec4c4877f4ff2469099b9cf23cc3e93e","status":"affected","versionType":"git"},{"version":"7e9c7ef83d785236f5a8c3761dd053fae9b92fb8","lessThan":"a1f4dc72efc3204db95d052058d785cad7ce755f","status":"affected","versionType":"git"},{"version":"7e9c7ef83d785236f5a8c3761dd053fae9b92fb8","lessThan":"6220694c52a5a04102b48109e4f24e958b559bd3","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/p2pdma.c"],"versions":[{"version":"6.2","status":"affected"},{"version":"0","lessThan":"6.2","status":"unaffected","versionType":"semver"},{"version":"6.6.128","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.75","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.14","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19.4","lessThanOrEqual":"6.19.*","status":"unaffected","versionType":"semver"},{"version":"7.0","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.6.128"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.12.75"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.18.14"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.19.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"7.0"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/baa42b756d183a59572f3890981a3d32b8d05d40"},{"url":"https://git.kernel.org/stable/c/51b7181cfbedf289ce794b6d97a1c596c309ec38"},{"url":"https://git.kernel.org/stable/c/e19cce88ec4c4877f4ff2469099b9cf23cc3e93e"},{"url":"https://git.kernel.org/stable/c/a1f4dc72efc3204db95d052058d785cad7ce755f"},{"url":"https://git.kernel.org/stable/c/6220694c52a5a04102b48109e4f24e958b559bd3"}],"title":"PCI/P2PDMA: Release per-CPU pgmap ref when vm_insert_page() fails","x_generator":{"engine":"bippy-1.2.0"}}}}