{"affected":[{"defaultStatus":"unaffected","product":"Linux","source":"CNA: Linux","vendor":"Linux","versions":[{"lessThan":"baa42b756d183a59572f3890981a3d32b8d05d40","status":"affected","version":"7e9c7ef83d785236f5a8c3761dd053fae9b92fb8","versionType":"git"},{"lessThan":"51b7181cfbedf289ce794b6d97a1c596c309ec38","status":"affected","version":"7e9c7ef83d785236f5a8c3761dd053fae9b92fb8","versionType":"git"},{"lessThan":"e19cce88ec4c4877f4ff2469099b9cf23cc3e93e","status":"affected","version":"7e9c7ef83d785236f5a8c3761dd053fae9b92fb8","versionType":"git"},{"lessThan":"a1f4dc72efc3204db95d052058d785cad7ce755f","status":"affected","version":"7e9c7ef83d785236f5a8c3761dd053fae9b92fb8","versionType":"git"},{"lessThan":"6220694c52a5a04102b48109e4f24e958b559bd3","status":"affected","version":"7e9c7ef83d785236f5a8c3761dd053fae9b92fb8","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","source":"CNA: Linux","vendor":"Linux","versions":[{"status":"affected","version":"6.2"},{"lessThan":"6.2","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.128","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.75","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.14","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}],"cpeConfigurations":[{"negate":false,"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.128","versionStartIncluding":"6.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.75","versionStartIncluding":"6.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.14","versionStartIncluding":"6.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.4","versionStartIncluding":"6.19","vulnerable":true}],"negate":false,"operator":"OR"}],"operator":"OR"}],"cveId":"CVE-2026-45880","cwes":[],"description":"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().","epss":{"date":"2026-11-06","percentile":0.05192,"score":0.0016},"exploits":[],"kev":null,"metrics":[{"score":5.5,"severity":"medium","source":"NVD: nvd@nist.gov","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}],"modifiedAt":1793981929123,"publishedAt":1779884212117,"references":[{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/baa42b756d183a59572f3890981a3d32b8d05d40"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/51b7181cfbedf289ce794b6d97a1c596c309ec38"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/e19cce88ec4c4877f4ff2469099b9cf23cc3e93e"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/a1f4dc72efc3204db95d052058d785cad7ce755f"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/6220694c52a5a04102b48109e4f24e958b559bd3"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"url":"https://git.kernel.org/stable/c/51b7181cfbedf289ce794b6d97a1c596c309ec38"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"url":"https://git.kernel.org/stable/c/6220694c52a5a04102b48109e4f24e958b559bd3"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"url":"https://git.kernel.org/stable/c/a1f4dc72efc3204db95d052058d785cad7ce755f"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"url":"https://git.kernel.org/stable/c/baa42b756d183a59572f3890981a3d32b8d05d40"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"url":"https://git.kernel.org/stable/c/e19cce88ec4c4877f4ff2469099b9cf23cc3e93e"}],"remediation":[{"kind":"fix","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://git.kernel.org/stable/c/51b7181cfbedf289ce794b6d97a1c596c309ec38"},{"kind":"fix","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://git.kernel.org/stable/c/6220694c52a5a04102b48109e4f24e958b559bd3"},{"kind":"fix","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://git.kernel.org/stable/c/a1f4dc72efc3204db95d052058d785cad7ce755f"},{"kind":"fix","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://git.kernel.org/stable/c/baa42b756d183a59572f3890981a3d32b8d05d40"},{"kind":"fix","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://git.kernel.org/stable/c/e19cce88ec4c4877f4ff2469099b9cf23cc3e93e"}],"revision":"aaf7db8ba22a9aea8a9b7e0bd908bc5c3889b7c82afcffe708bfd35aaf51e34e","sources":[{"modifiedAt":1793980390517,"name":"CNA: Linux","retrievedAt":1793981759853,"url":"https://www.cve.org/CVERecord?id=CVE-2026-45880"},{"modifiedAt":1793981929123,"name":"NVD","retrievedAt":1793989221439,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45880"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793981787704,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-45880"}],"ssvc":{"assessedAt":1793979807538,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"PCI/P2PDMA: Release per-CPU pgmap ref when vm_insert_page() fails","updatedAt":1793989221439}