netfilter: ctnetlink: use helper function to calculate expect ID

Summary

In the Linux kernel, the following vulnerability has been resolved: netfilter: ctnetlink: use helper function to calculate expect ID Delete expectation path is missing a call to the nf_expect_get_id() helper function to calculate the expectation ID, otherwise LSB of the expectation object address is leaked to userspace.

Timeline

1. Aug 30, 2024, 7:56 AM UTCCVE published
2. Sep 10, 2024, 3:27 PM UTCCISA SSVC assessment

   Exploitation: none · Automatable: no · Technical impact: partial

3. Oct 15, 2026, 12:49 AM UTCRecord last updated

Affected versions

• Linux Linux

  From 7b115755fb9d3aff0ddcd18a5c4d83381362acce · fixed in 66e7650dbbb8e236e781c670b167edc81e771450; From 3c79107631db1f7fd32cf3f7368e4672004a3010 · fixed in 64c0b8e64be8368617ef08dfc59a3160563a1435; From 3c79107631db1f7fd32cf3f7368e4672004a3010 · fixed in eb4ca1a97e08ff5b920664ba292e576257e2d184; From 3c79107631db1f7fd32cf3f7368e4672004a3010 · fixed in 5e2c24f7b0911b15c29aefce760bcf770542fb61; From 3c79107631db1f7fd32cf3f7368e4672004a3010 · fixed in 24f407042cf90b0872de667460230d8d50c06c39; From 3c79107631db1f7fd32cf3f7368e4672004a3010 · fixed in 27662b46f2adaa52c1665a82af4b21c42c4337fd; From 3c79107631db1f7fd32cf3f7368e4672004a3010 · fixed in 74de442b8e12a207c07953ee068009a7701aff8f; From 3c79107631db1f7fd32cf3f7368e4672004a3010 · fixed in 782161895eb4ac45cf7cfa8db375bd4766cb8299; From 4.19.44 · fixed in 4.19.320; From 3.16.72 · fixed in 3.17; From 4.4.191 · fixed in 4.5; From 4.9.190 · fixed in 4.10; From 4.14.120 · fixed in 4.15; From 5.0.17 · fixed in 5.1

• Linux Linux

  5.1

• KernelLinux

  fixed in 4.19.320; From 4.20.0 · fixed in 5.4.282; From 5.1.0 · fixed in 5.10.224; From 5.5.0 · fixed in 5.15.165; From 5.11.0 · fixed in 6.1.103; From 5.16.0 · fixed in 6.6.44; From 6.2.0 · fixed in 6.10.3

References 9