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CVE-2026-43491

In the Linux kernel, the following vulnerability has been resolved: net: qrtr: ns: Limit the maximum server registration per node Current code does no bound checking on the number of servers added per node. A malicious client can flood NEW_SERVER messages and exhaust memory. Fix this issue by limiting the maximum number of server registrations to 256 per node. If the NEW_SERVER message is received for an old port, then don't restrict it as it will get replaced. While at it, also rate limit th
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:cafdbf61ec32cd5a995e8bf381c7a060b3176c4a8462b2c3727b6bc515f53cb2
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/qrtr/ns.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"e6f6cd501fb54060940a6eb3f4103eeb5e426ae7","status":"affected","version":"0c2204a4ad710d95d348ea006f14ba926e842ffd","versionType":"git"},{"lessThan":"3efaad55cad1ded429e3a873bfece389058a526b","status":"affected","version":"0c2204a4ad710d95d348ea006f14ba926e842ffd","versionType":"git"},{"lessThan":"35fb4a0c077c5d1049c2628b769e0a1b1e65df0d","status":"affected","version":"0c2204a4ad710d95d348ea006f14ba92…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bf32fbe7a4c79581b4c17033ac2a0872b72bf69d524883284154fd5f65a73c2f · sha256:d7c6e32af3fcb6d6… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["net/qrtr/ns.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.7"},{"lessThan":"5.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.140","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.86","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.27","versionType":"semver"},{"lessThanOrEqual":"7…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bf32fbe7a4c79581b4c17033ac2a0872b72bf69d524883284154fd5f65a73c2f · sha256:d7c6e32af3fcb6d6… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/qrtr/ns.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"e6f6cd501fb54060940a6eb3f4103eeb5e426ae7","status":"affected","version":"0c2204a4ad710d95d348ea006f14ba926e842ffd","versionType":"git"},{"lessThan":"3efaad55cad1ded429e3a873bfece389058a526b","status":"affected","version":"0c2204a4ad710d95d348ea006f14ba926e842ffd","versionType":"git"},{"lessThan":"35fb4a0c077c5d1049c2628b769e0a1b1e65df0d","status":"affected","version":"0c2204a4ad710d95d348ea006f14ba92…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bf32fbe7a4c79581b4c17033ac2a0872b72bf69d524883284154fd5f65a73c2f · sha256:d7c6e32af3fcb6d6… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["net/qrtr/ns.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.7"},{"lessThan":"5.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.140","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.86","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.27","versionType":"semver"},{"lessThanOrEqual":"7…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bf32fbe7a4c79581b4c17033ac2a0872b72bf69d524883284154fd5f65a73c2f · sha256:d7c6e32af3fcb6d6… · /containers/cna/affected/1

Source references

5 source assertions
{"url":"https://git.kernel.org/stable/c/35fb4a0c077c5d1049c2628b769e0a1b1e65df0d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bf32fbe7a4c79581b4c17033ac2a0872b72bf69d524883284154fd5f65a73c2f · sha256:d7c6e32af3fcb6d6… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/3efaad55cad1ded429e3a873bfece389058a526b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bf32fbe7a4c79581b4c17033ac2a0872b72bf69d524883284154fd5f65a73c2f · sha256:d7c6e32af3fcb6d6… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/868202aa2adae427060a42d5bd663b4d782ec02c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bf32fbe7a4c79581b4c17033ac2a0872b72bf69d524883284154fd5f65a73c2f · sha256:d7c6e32af3fcb6d6… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/d5ee2ff98322337951c56398e79d51815acbf955"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bf32fbe7a4c79581b4c17033ac2a0872b72bf69d524883284154fd5f65a73c2f · sha256:d7c6e32af3fcb6d6… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/e6f6cd501fb54060940a6eb3f4103eeb5e426ae7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bf32fbe7a4c79581b4c17033ac2a0872b72bf69d524883284154fd5f65a73c2f · sha256:d7c6e32af3fcb6d6… · /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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