CVE Explorer

CVE-2026-64280

In the Linux kernel, the following vulnerability has been resolved: fpga: dfl-afu: validate DMA mapping length in afu_dma_map_region() afu_ioctl_dma_map() accepts a 64-bit length from userspace via DFL_FPGA_PORT_DMA_MAP ioctl without an upper bound check. The value is passed to afu_dma_pin_pages() where npages is derived as length >> PAGE_SHIFT and passed to pin_user_pages_fast() which takes int nr_pages, causing implicit truncation if length is very large. Validate map.length at the ioctl en

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:673f45c32b01bd273dcbe20a43484f071b483e46f6135b9a6690d38bd596bac7

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/fpga/dfl-afu-main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"16381bda90b261a656ded0568630c1b857b2ebc8","status":"affected","version":"fa8dda1edef9ebc3af467c644c5533ac97171e12","versionType":"git"},{"lessThan":"b50e6cd2395cde615f59b624819998d28c0668d6","status":"affected","version":"fa8dda1edef9ebc3af467c644c5533ac97171e12","versionType":"git"},{"lessThan":"59070040fd12e0b78d7b4d341d9f9a183237c5ff","status":"affected","version":"fa8dda1edef9ebc3af…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:0db6fc14153db74137bde67e0bc4ea99ba47c3e7273d619ca05f0f81bf496672 · sha256:eaa444585c5a6e73… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/fpga/dfl-afu-main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.19"},{"lessThan":"4.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.148","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.101","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.39","versionType":"semver"},{"le…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:0db6fc14153db74137bde67e0bc4ea99ba47c3e7273d619ca05f0f81bf496672 · sha256:eaa444585c5a6e73… · /containers/cna/affected/1

Affected products and versions

2 source assertions

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:0db6fc14153db74137bde67e0bc4ea99ba47c3e7273d619ca05f0f81bf496672 · sha256:eaa444585c5a6e73… · /containers/cna/affected/0

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:0db6fc14153db74137bde67e0bc4ea99ba47c3e7273d619ca05f0f81bf496672 · sha256:eaa444585c5a6e73… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion

{"metric":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:0db6fc14153db74137bde67e0bc4ea99ba47c3e7273d619ca05f0f81bf496672 · sha256:eaa444585c5a6e73… · /containers/cna/metrics/0/cvssV3_1

Source references

5 source assertions

{"url":"https://git.kernel.org/stable/c/16381bda90b261a656ded0568630c1b857b2ebc8"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:0db6fc14153db74137bde67e0bc4ea99ba47c3e7273d619ca05f0f81bf496672 · sha256:eaa444585c5a6e73… · /containers/cna/references/0

{"url":"https://git.kernel.org/stable/c/59070040fd12e0b78d7b4d341d9f9a183237c5ff"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:0db6fc14153db74137bde67e0bc4ea99ba47c3e7273d619ca05f0f81bf496672 · sha256:eaa444585c5a6e73… · /containers/cna/references/2

{"url":"https://git.kernel.org/stable/c/b50e6cd2395cde615f59b624819998d28c0668d6"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:0db6fc14153db74137bde67e0bc4ea99ba47c3e7273d619ca05f0f81bf496672 · sha256:eaa444585c5a6e73… · /containers/cna/references/1

{"url":"https://git.kernel.org/stable/c/fb2c0eab51ae5b02d2bae7d67c2cfbec39b57231"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:0db6fc14153db74137bde67e0bc4ea99ba47c3e7273d619ca05f0f81bf496672 · sha256:eaa444585c5a6e73… · /containers/cna/references/3

{"url":"https://git.kernel.org/stable/c/fc3b071a7c8dc0f5d56defddf6e6fd5aaa3e1e27"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:0db6fc14153db74137bde67e0bc4ea99ba47c3e7273d619ca05f0f81bf496672 · sha256:eaa444585c5a6e73… · /containers/cna/references/4

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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