CVE-2024-47678 (GCVE-0-2024-47678)

Vulnerability from cvelistv5 – Published: 2024-10-21 11:53 – Updated: 2025-11-03 22:20
VLAI?
Title
icmp: change the order of rate limits
Summary
In the Linux kernel, the following vulnerability has been resolved: icmp: change the order of rate limits ICMP messages are ratelimited : After the blamed commits, the two rate limiters are applied in this order: 1) host wide ratelimit (icmp_global_allow()) 2) Per destination ratelimit (inetpeer based) In order to avoid side-channels attacks, we need to apply the per destination check first. This patch makes the following change : 1) icmp_global_allow() checks if the host wide limit is reached. But credits are not yet consumed. This is deferred to 3) 2) The per destination limit is checked/updated. This might add a new node in inetpeer tree. 3) icmp_global_consume() consumes tokens if prior operations succeeded. This means that host wide ratelimit is still effective in keeping inetpeer tree small even under DDOS. As a bonus, I removed icmp_global.lock as the fast path can use a lock-free operation.
Severity ?
No CVSS data available.
Assigner
Impacted products
Vendor Product Version
Linux Linux Affected: 4cdf507d54525842dfd9f6313fdafba039084046 , < 997ba8889611891f91e8ad83583466aeab6239a3 (git)
Affected: 4cdf507d54525842dfd9f6313fdafba039084046 , < 662ec52260cc07b9ae53ecd3925183c29d34288b (git)
Affected: 4cdf507d54525842dfd9f6313fdafba039084046 , < a7722921adb046e3836eb84372241f32584bdb07 (git)
Affected: 4cdf507d54525842dfd9f6313fdafba039084046 , < 483397b4ba280813e4a9c161a0a85172ddb43d19 (git)
Affected: 4cdf507d54525842dfd9f6313fdafba039084046 , < 8c2bd38b95f75f3d2a08c93e35303e26d480d24e (git)
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    Linux Linux Affected: 3.18
Unaffected: 0 , < 3.18 (semver)
Unaffected: 6.1.113 , ≤ 6.1.* (semver)
Unaffected: 6.6.54 , ≤ 6.6.* (semver)
Unaffected: 6.10.13 , ≤ 6.10.* (semver)
Unaffected: 6.11.2 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
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Show details on NVD website

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
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