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CVE-2026-64149

In the Linux kernel, the following vulnerability has been resolved: dma-mapping: move dma_map_resource() sanity check into debug code dma_map_resource() uses pfn_valid() to ensure the range is not RAM. However, pfn_valid() only checks for availability of the memory map for a PFN but it does not ensure that the PFN is actually backed by RAM. On ARM64 with SPARSEMEM (128MB section granularity), MMIO addresses that share a section with RAM will falsely trigger the WARN_ON_ONCE and cause dma_map_r
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:b512600e001cdb91a23f5f56d33a575e849c5c12d5919c6e5188328a7619e2be
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["kernel/dma/debug.c","kernel/dma/mapping.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"181e67bc11c5ec5b87c6c512c2078752b23ca8d4","status":"affected","version":"f7326196a781622b33bfbdabb00f5e72b5fb5679","versionType":"git"},{"lessThan":"004a777879ff629f6e0ca3d09ad09fa3452bcc4d","status":"affected","version":"f7326196a781622b33bfbdabb00f5e72b5fb5679","versionType":"git"},{"lessThan":"af0c3f05866237f7592219bfe05387bc3bfc99b5","status":"affected","version":"f732…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fcc312a4ed2f4c5f2ddecc7cd4548ca0ddfeb4472b9961dfa608ed0ad34c2a51 · sha256:02dad7ba752d0b19… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["kernel/dma/debug.c","kernel/dma/mapping.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.34","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.11","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_c…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fcc312a4ed2f4c5f2ddecc7cd4548ca0ddfeb4472b9961dfa608ed0ad34c2a51 · sha256:02dad7ba752d0b19… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["kernel/dma/debug.c","kernel/dma/mapping.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"181e67bc11c5ec5b87c6c512c2078752b23ca8d4","status":"affected","version":"f7326196a781622b33bfbdabb00f5e72b5fb5679","versionType":"git"},{"lessThan":"004a777879ff629f6e0ca3d09ad09fa3452bcc4d","status":"affected","version":"f7326196a781622b33bfbdabb00f5e72b5fb5679","versionType":"git"},{"lessThan":"af0c3f05866237f7592219bfe05387bc3bfc99b5","status":"affected","version":"f732…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fcc312a4ed2f4c5f2ddecc7cd4548ca0ddfeb4472b9961dfa608ed0ad34c2a51 · sha256:02dad7ba752d0b19… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["kernel/dma/debug.c","kernel/dma/mapping.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.34","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.11","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_c…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fcc312a4ed2f4c5f2ddecc7cd4548ca0ddfeb4472b9961dfa608ed0ad34c2a51 · sha256:02dad7ba752d0b19… · /containers/cna/affected/1

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/004a777879ff629f6e0ca3d09ad09fa3452bcc4d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fcc312a4ed2f4c5f2ddecc7cd4548ca0ddfeb4472b9961dfa608ed0ad34c2a51 · sha256:02dad7ba752d0b19… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/181e67bc11c5ec5b87c6c512c2078752b23ca8d4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fcc312a4ed2f4c5f2ddecc7cd4548ca0ddfeb4472b9961dfa608ed0ad34c2a51 · sha256:02dad7ba752d0b19… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/af0c3f05866237f7592219bfe05387bc3bfc99b5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fcc312a4ed2f4c5f2ddecc7cd4548ca0ddfeb4472b9961dfa608ed0ad34c2a51 · sha256:02dad7ba752d0b19… · /containers/cna/references/2

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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