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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2026-23139

netfilter: nf_conncount: update last_gc only when GC has been performed

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conncount: update last_gc only when GC has been performed Currently last_gc is being updated everytime a new connection is tracked, that means that it is updated even if a GC wasn't performed. With a sufficiently high packet rate, it is possible to always bypass the GC, causing the list to grow infinitely. Update the last_gc value only when a GC has been actually performed.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • f106694733c66a48740c25bc4e212e9b2ea364ce to < 2c7c71113ed6d3e2f3aca4c088f22283016ff34faffected
  • be69850b461e7b491d87a22e33ab76fdd04b725e to < c4cde57c8affdcca5bcff53a1047e15d268bdca1affected
  • d265929930e2ffafc744c0ae05fb70acd53be1ee to < 9f45588993d7f115280fc726119ca86fba32a811affected
  • d265929930e2ffafc744c0ae05fb70acd53be1ee to < 3cd717359e56f82f06cbf8279b47a7d79880c6f3affected
  • d265929930e2ffafc744c0ae05fb70acd53be1ee to < 26a82dce2beee39c43c109d9647e16f49cb02a35affected
  • d265929930e2ffafc744c0ae05fb70acd53be1ee to < 8bdafdf4900040a81422056cabe5e00a37bd101aaffected
  • d265929930e2ffafc744c0ae05fb70acd53be1ee to < 7811ba452402d58628e68faedf38745b3d485e3caffected

Linux Linux

Default version status: affected

  • 5.19affected
  • 0 to < 5.19unaffected
  • 6.1.161 to ≤ 6.1.*unaffected
  • 6.6.121 to ≤ 6.6.*unaffected
  • 6.12.66 to ≤ 6.12.*unaffected
  • 6.18.6 to ≤ 6.18.*unaffected
  • 6.19 to ≤ *unaffected

References