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CVE-2026-45913

In the Linux kernel, the following vulnerability has been resolved: net: bridge: mcast: always update mdb_n_entries for vlan contexts syzbot triggered a warning[1] about the number of mdb entries in a context. It turned out that there are multiple ways to trigger that warning today (some got added during the years), the root cause of the problem is that the increase is done conditionally, and over the years these different conditions increased so there were new ways to trigger the warning, tha
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:56069c7cd37911b87aede5b526920910fc68c6a7ca9484f21fec866bebb7a31e
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":["net/bridge/br_multicast.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"d0fdad1bdd21a358cc2c85da3681ae27b86ce6ce","status":"affected","version":"b57e8d870d522d905720052e6fd9c3bc9bc5f6fb","versionType":"git"},{"lessThan":"724a405ce0309676f1e993c173382b4c4a022beb","status":"affected","version":"b57e8d870d522d905720052e6fd9c3bc9bc5f6fb","versionType":"git"},{"lessThan":"fae260fc84e1eae8f590c7907e53e8768df2d986","status":"affected","version":"b57e8d870d522d905720…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b0bc63246967aeed3cf9ae6b0000eb64834bdbfb99e618987789d767709d664a · sha256:ee11df1e77f67aef… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["net/bridge/br_multicast.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.3"},{"lessThan":"6.3","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.128","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.75","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.14","versionType":"semver"},{"lessTha…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b0bc63246967aeed3cf9ae6b0000eb64834bdbfb99e618987789d767709d664a · sha256:ee11df1e77f67aef… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/bridge/br_multicast.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"d0fdad1bdd21a358cc2c85da3681ae27b86ce6ce","status":"affected","version":"b57e8d870d522d905720052e6fd9c3bc9bc5f6fb","versionType":"git"},{"lessThan":"724a405ce0309676f1e993c173382b4c4a022beb","status":"affected","version":"b57e8d870d522d905720052e6fd9c3bc9bc5f6fb","versionType":"git"},{"lessThan":"fae260fc84e1eae8f590c7907e53e8768df2d986","status":"affected","version":"b57e8d870d522d905720…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b0bc63246967aeed3cf9ae6b0000eb64834bdbfb99e618987789d767709d664a · sha256:ee11df1e77f67aef… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["net/bridge/br_multicast.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.3"},{"lessThan":"6.3","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.128","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.75","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.14","versionType":"semver"},{"lessTha…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b0bc63246967aeed3cf9ae6b0000eb64834bdbfb99e618987789d767709d664a · sha256:ee11df1e77f67aef… · /containers/cna/affected/1

Source references

5 source assertions
{"url":"https://git.kernel.org/stable/c/45525fdfd4cb612d7b414dd5cfa1f43892a7cd71"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b0bc63246967aeed3cf9ae6b0000eb64834bdbfb99e618987789d767709d664a · sha256:ee11df1e77f67aef… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/724a405ce0309676f1e993c173382b4c4a022beb"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b0bc63246967aeed3cf9ae6b0000eb64834bdbfb99e618987789d767709d664a · sha256:ee11df1e77f67aef… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/8b769e311a86bb9d15c5658ad283b86fc8f080a2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b0bc63246967aeed3cf9ae6b0000eb64834bdbfb99e618987789d767709d664a · sha256:ee11df1e77f67aef… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/d0fdad1bdd21a358cc2c85da3681ae27b86ce6ce"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b0bc63246967aeed3cf9ae6b0000eb64834bdbfb99e618987789d767709d664a · sha256:ee11df1e77f67aef… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/fae260fc84e1eae8f590c7907e53e8768df2d986"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b0bc63246967aeed3cf9ae6b0000eb64834bdbfb99e618987789d767709d664a · sha256:ee11df1e77f67aef… · /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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