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CVE-2026-46107

In the Linux kernel, the following vulnerability has been resolved: dm-thin: fix metadata refcount underflow There's a bug in dm-thin in the function rebalance_children. If the internal btree node has one entry, the code tries to copy all btree entries from the node's child to the node itself and then decrement the child's reference count. If the child node is shared (it has reference count > 1), we won't free it, so there would be two pointers to each of the grandchildren nodes. But the refe
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:b0d9cda9a84effe1f4ed6ba9813770965d5070aadc7de9079241a392ee675e06
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":["drivers/md/persistent-data/dm-btree-remove.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"b719d12cb94df345e9ad2715fd0abe9afcaeb111","status":"affected","version":"3241b1d3e0aaafbfcd320f4d71ade629728cc4f4","versionType":"git"},{"lessThan":"f49b41c9eb7c6ff00df27cd49cea210abbadd8ad","status":"affected","version":"3241b1d3e0aaafbfcd320f4d71ade629728cc4f4","versionType":"git"},{"lessThan":"f06f6aededd792a754cd677c02b3d3016d868c2c","status":"affected","version":"3…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2fa27a0cc8eb91be0fefc7320f3bb81dc684981b4d38a98e3abb63b41f04f573 · sha256:6c1ec00fcfda7068… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/md/persistent-data/dm-btree-remove.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.2"},{"lessThan":"3.2","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2fa27a0cc8eb91be0fefc7320f3bb81dc684981b4d38a98e3abb63b41f04f573 · sha256:6c1ec00fcfda7068… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/md/persistent-data/dm-btree-remove.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"b719d12cb94df345e9ad2715fd0abe9afcaeb111","status":"affected","version":"3241b1d3e0aaafbfcd320f4d71ade629728cc4f4","versionType":"git"},{"lessThan":"f49b41c9eb7c6ff00df27cd49cea210abbadd8ad","status":"affected","version":"3241b1d3e0aaafbfcd320f4d71ade629728cc4f4","versionType":"git"},{"lessThan":"f06f6aededd792a754cd677c02b3d3016d868c2c","status":"affected","version":"3…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2fa27a0cc8eb91be0fefc7320f3bb81dc684981b4d38a98e3abb63b41f04f573 · sha256:6c1ec00fcfda7068… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/md/persistent-data/dm-btree-remove.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.2"},{"lessThan":"3.2","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2fa27a0cc8eb91be0fefc7320f3bb81dc684981b4d38a98e3abb63b41f04f573 · sha256:6c1ec00fcfda7068… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/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:v2:2fa27a0cc8eb91be0fefc7320f3bb81dc684981b4d38a98e3abb63b41f04f573 · sha256:6c1ec00fcfda7068… · /containers/cna/metrics/0/cvssV3_1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/09a65adc7d8bbfce06392cb6d375468e2728ead5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2fa27a0cc8eb91be0fefc7320f3bb81dc684981b4d38a98e3abb63b41f04f573 · sha256:6c1ec00fcfda7068… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/12161e03d33afce781f68fa11cc6060538862fad"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2fa27a0cc8eb91be0fefc7320f3bb81dc684981b4d38a98e3abb63b41f04f573 · sha256:6c1ec00fcfda7068… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/323d252a4a378834e4fe68298ca61cfc5dd3a460"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2fa27a0cc8eb91be0fefc7320f3bb81dc684981b4d38a98e3abb63b41f04f573 · sha256:6c1ec00fcfda7068… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/5ec0debbcfd43596e32c1239e993de06a704e04c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2fa27a0cc8eb91be0fefc7320f3bb81dc684981b4d38a98e3abb63b41f04f573 · sha256:6c1ec00fcfda7068… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/85311a585a26640760cd0f3349ab9f2905691044"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2fa27a0cc8eb91be0fefc7320f3bb81dc684981b4d38a98e3abb63b41f04f573 · sha256:6c1ec00fcfda7068… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/b719d12cb94df345e9ad2715fd0abe9afcaeb111"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2fa27a0cc8eb91be0fefc7320f3bb81dc684981b4d38a98e3abb63b41f04f573 · sha256:6c1ec00fcfda7068… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/f06f6aededd792a754cd677c02b3d3016d868c2c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2fa27a0cc8eb91be0fefc7320f3bb81dc684981b4d38a98e3abb63b41f04f573 · sha256:6c1ec00fcfda7068… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/f49b41c9eb7c6ff00df27cd49cea210abbadd8ad"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2fa27a0cc8eb91be0fefc7320f3bb81dc684981b4d38a98e3abb63b41f04f573 · sha256:6c1ec00fcfda7068… · /containers/cna/references/1

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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