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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2024-39503

netfilter: ipset: Fix race between namespace cleanup and gc in the list:set type

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: Fix race between namespace cleanup and gc in the list:set type Lion Ackermann reported that there is a race condition between namespace cleanup in ipset and the garbage collection of the list:set type. The namespace cleanup can destroy the list:set type of sets while the gc of the set type is waiting to run in rcu cleanup. The latter uses data from the destroyed set which thus leads use after free. The patch contains the following parts: - When destroying all sets, first remove the garbage collectors, then wait if needed and then destroy the sets. - Fix the badly ordered "wait then remove gc" for the destroy a single set case. - Fix the missing rcu locking in the list:set type in the userspace test case. - Use proper RCU list handlings in the list:set type. The patch depends on c1193d9bbbd3 (netfilter: ipset: Add list flush to cancel_gc).

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

  • c7f2733e5011bfd136f1ca93497394d43aa76225 to < c0761d1f1ce1d5b85b5e82bbb714df12de1aa8c3affected
  • a24d5f2ac8ef702a58e55ec276aad29b4bd97e05 to < 93b53c202b51a69e42ca57f5a183f7e008e19f83affected
  • c2dc077d8f722a1c73a24e674f925602ee5ece49 to < 0f1bb77c6d837c9513943bc7c08f04c5cc5c6568affected
  • 653bc5e6d9995d7d5f497c665b321875a626161c to < 390b353d1a1da3e9c6c0fd14fe650d69063c95d6affected
  • b93a6756a01f4fd2f329a39216f9824c56a66397 to < 2ba35b37f780c6410bb4bba9c3072596d8576702affected
  • 97f7cf1cd80eeed3b7c808b7c12463295c751001 to < 90ae20d47de602198eb69e6cd7a3db3420abfc08affected
  • 97f7cf1cd80eeed3b7c808b7c12463295c751001 to < 4e7aaa6b82d63e8ddcbfb56b4fd3d014ca586f10affected
  • 970709a67696b100a57b33af1a3d75fc34b747ebaffected
  • 5.4.269 to < 5.4.279affected
  • 5.10.210 to < 5.10.221affected
  • 5.15.149 to < 5.15.162affected
  • 6.1.79 to < 6.1.95affected
  • 6.6.18 to < 6.6.35affected
  • 6.7.6 to < 6.8affected

Linux Linux

Default version status: affected

  • 6.8affected
  • 0 to < 6.8unaffected
  • 5.4.279 to ≤ 5.4.*unaffected
  • 5.10.221 to ≤ 5.10.*unaffected
  • 5.15.162 to ≤ 5.15.*unaffected
  • 6.1.95 to ≤ 6.1.*unaffected
  • 6.6.35 to ≤ 6.6.*unaffected
  • 6.9.6 to ≤ 6.9.*unaffected
  • 6.10 to ≤ *unaffected

References