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CVE-2026-46115

In the Linux kernel, the following vulnerability has been resolved: block: add pgmap check to biovec_phys_mergeable biovec_phys_mergeable() is used by the request merge, DMA mapping, and integrity merge paths to decide if two physically contiguous bvec segments can be coalesced into one. It currently has no check for whether the segments belong to different dev_pagemaps. When zone device memory is registered in multiple chunks, each chunk gets its own dev_pagemap. A single bio can legitimatel
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:93bf08fb640708e0fa2c276cf213acd47fd27c7daa23e4b876bbf4047d8f9b83
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":["block/blk.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"3d2ecbd444b01d6500671d1a582b7393943cf539","status":"affected","version":"49580e690755d0e51ed7aa2c33225dd884fa738a","versionType":"git"},{"lessThan":"a7f3aa8c9df3905fe820ae36b67ba56b81587574","status":"affected","version":"49580e690755d0e51ed7aa2c33225dd884fa738a","versionType":"git"},{"lessThan":"f17d521075325b8afc42d1baa1c28a5e9aca111f","status":"affected","version":"49580e690755d0e51ed7aa2c33225dd884…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6f3ca944ec086dd2605a0c79b9a8cbf85eb2c566a087c9615200a005443b9623 · sha256:31d0de14f7b35185… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["block/blk.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.2"},{"lessThan":"6.2","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.140","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.88","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.30","versionType":"semver"},{"lessThanOrEqual":"7.0…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6f3ca944ec086dd2605a0c79b9a8cbf85eb2c566a087c9615200a005443b9623 · sha256:31d0de14f7b35185… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["block/blk.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"3d2ecbd444b01d6500671d1a582b7393943cf539","status":"affected","version":"49580e690755d0e51ed7aa2c33225dd884fa738a","versionType":"git"},{"lessThan":"a7f3aa8c9df3905fe820ae36b67ba56b81587574","status":"affected","version":"49580e690755d0e51ed7aa2c33225dd884fa738a","versionType":"git"},{"lessThan":"f17d521075325b8afc42d1baa1c28a5e9aca111f","status":"affected","version":"49580e690755d0e51ed7aa2c33225dd884…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6f3ca944ec086dd2605a0c79b9a8cbf85eb2c566a087c9615200a005443b9623 · sha256:31d0de14f7b35185… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["block/blk.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.2"},{"lessThan":"6.2","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.140","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.88","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.30","versionType":"semver"},{"lessThanOrEqual":"7.0…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6f3ca944ec086dd2605a0c79b9a8cbf85eb2c566a087c9615200a005443b9623 · sha256:31d0de14f7b35185… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":9.8,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6f3ca944ec086dd2605a0c79b9a8cbf85eb2c566a087c9615200a005443b9623 · sha256:31d0de14f7b35185… · /containers/cna/metrics/0/cvssV3_1

Source references

5 source assertions
{"url":"https://git.kernel.org/stable/c/13920e4b7b784b40cf4519ff1f0f3e513476a499"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6f3ca944ec086dd2605a0c79b9a8cbf85eb2c566a087c9615200a005443b9623 · sha256:31d0de14f7b35185… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/3d2ecbd444b01d6500671d1a582b7393943cf539"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6f3ca944ec086dd2605a0c79b9a8cbf85eb2c566a087c9615200a005443b9623 · sha256:31d0de14f7b35185… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/a7f3aa8c9df3905fe820ae36b67ba56b81587574"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6f3ca944ec086dd2605a0c79b9a8cbf85eb2c566a087c9615200a005443b9623 · sha256:31d0de14f7b35185… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/f17d521075325b8afc42d1baa1c28a5e9aca111f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6f3ca944ec086dd2605a0c79b9a8cbf85eb2c566a087c9615200a005443b9623 · sha256:31d0de14f7b35185… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/f632dab4b841554cd6416058c61886d7db176581"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6f3ca944ec086dd2605a0c79b9a8cbf85eb2c566a087c9615200a005443b9623 · sha256:31d0de14f7b35185… · /containers/cna/references/3

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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