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CVE PROGRAM SOURCE RECORDUnscored

CVE-2025-21648

netfilter: conntrack: clamp maximum hashtable size to INT_MAX

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: clamp maximum hashtable size to INT_MAX Use INT_MAX as maximum size for the conntrack hashtable. Otherwise, it is possible to hit WARN_ON_ONCE in __kvmalloc_node_noprof() when resizing hashtable because __GFP_NOWARN is unset. See: 0708a0afe291 ("mm: Consider __GFP_NOWARN flag for oversized kvmalloc() calls") Note: hashtable resize is only possible from init_netns.

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

  • 9cc1c73ad66610bffc80b691136ffc1e9a3b1a58 to < a965f7f0ea3ae61b9165bed619d5d6da02c75f80affected
  • 9cc1c73ad66610bffc80b691136ffc1e9a3b1a58 to < b1b2353d768f1b80cd7fe045a70adee576b9b338affected
  • 9cc1c73ad66610bffc80b691136ffc1e9a3b1a58 to < 5552b4fd44be3393b930434a7845d8d95a2a3c33affected
  • 9cc1c73ad66610bffc80b691136ffc1e9a3b1a58 to < d5807dd1328bbc86e059c5de80d1bbee9d58ca3daffected
  • 9cc1c73ad66610bffc80b691136ffc1e9a3b1a58 to < f559357d035877b9d0dcd273e0ff83e18e1d46aaaffected
  • 9cc1c73ad66610bffc80b691136ffc1e9a3b1a58 to < b541ba7d1f5a5b7b3e2e22dc9e40e18a7d6dbc13affected

Linux Linux

Default version status: affected

  • 4.7affected
  • 0 to < 4.7unaffected
  • 5.10.234 to ≤ 5.10.*unaffected
  • 5.15.177 to ≤ 5.15.*unaffected
  • 6.1.125 to ≤ 6.1.*unaffected
  • 6.6.72 to ≤ 6.6.*unaffected
  • 6.12.10 to ≤ 6.12.*unaffected
  • 6.13 to ≤ *unaffected

References