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CVE-2026-63955

In the Linux kernel, the following vulnerability has been resolved: mm/vmalloc: do not trigger BUG() on BH disabled context __get_vm_area_node() currently triggers a BUG() if in_interrupt() returns true. However, in_interrupt() also reports true when BH are disabled. The bridge code can call rhashtable_lookup_insert_fast() with bottom halves disabled: __vlan_add() -> br_fdb_add_local() spin_lock_bh(&br->hash_lock); <-- Disable BH -> fdb_add_local() -> fdb_create() -> rhashtab
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:155ff282ea003093ee9ecb3b386dbff54ba51f280c3739f0e8b004801384ecd7
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":"affected","product":"Linux","programFiles":["mm/vmalloc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.19"},{"lessThan":"6.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.12","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0618415ccb5301f2acdc6fa1ac9f788403609a8a546770049e57200f6fae112b · sha256:5d8dbaec93cad1df… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["mm/vmalloc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"ad7eff07b625f53c3fb513b30d7a8c5a79fbc7ce","status":"affected","version":"c6307674ed82c0c57d6e1e3408e84ac449ab8e94","versionType":"git"},{"lessThan":"04aa71da5f35aacdc9ae9cb5150947daa624f641","status":"affected","version":"c6307674ed82c0c57d6e1e3408e84ac449ab8e94","versionType":"git"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0618415ccb5301f2acdc6fa1ac9f788403609a8a546770049e57200f6fae112b · sha256:5d8dbaec93cad1df… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["mm/vmalloc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.19"},{"lessThan":"6.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.12","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0618415ccb5301f2acdc6fa1ac9f788403609a8a546770049e57200f6fae112b · sha256:5d8dbaec93cad1df… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["mm/vmalloc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"ad7eff07b625f53c3fb513b30d7a8c5a79fbc7ce","status":"affected","version":"c6307674ed82c0c57d6e1e3408e84ac449ab8e94","versionType":"git"},{"lessThan":"04aa71da5f35aacdc9ae9cb5150947daa624f641","status":"affected","version":"c6307674ed82c0c57d6e1e3408e84ac449ab8e94","versionType":"git"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0618415ccb5301f2acdc6fa1ac9f788403609a8a546770049e57200f6fae112b · sha256:5d8dbaec93cad1df… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0618415ccb5301f2acdc6fa1ac9f788403609a8a546770049e57200f6fae112b · sha256:5d8dbaec93cad1df… · /containers/cna/metrics/0/cvssV3_1

Source references

2 source assertions
{"url":"https://git.kernel.org/stable/c/04aa71da5f35aacdc9ae9cb5150947daa624f641"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0618415ccb5301f2acdc6fa1ac9f788403609a8a546770049e57200f6fae112b · sha256:5d8dbaec93cad1df… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/ad7eff07b625f53c3fb513b30d7a8c5a79fbc7ce"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0618415ccb5301f2acdc6fa1ac9f788403609a8a546770049e57200f6fae112b · sha256:5d8dbaec93cad1df… · /containers/cna/references/0

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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