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CVE-2026-52970

netfilter: nft_ct: fix missing expect put in obj eval

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.258, 5.15.209, 6.1.175, 6.6.141, 6.12.91, and 2 more
None on Exploit-DB, Metasploit or GitHub

Summary

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_ct: fix missing expect put in obj eval nft_ct_expect_obj_eval() allocates an expectation and may call nf_ct_expect_related(), but never drops its local reference. Add nf_ct_expect_put(exp) before return to balance allocation.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From 857b46027d6f91150797295752581b7155b9d0e1 · fixed in cdb9a25dd3416d427e8b2753210f8baf44207577; From 857b46027d6f91150797295752581b7155b9d0e1 · fixed in 26ab32ec73941871c97562ee1f39587950dc3b68; From 857b46027d6f91150797295752581b7155b9d0e1 · fixed in 7b96242ceedfe249f158419f3254bcee04173ffe; From 857b46027d6f91150797295752581b7155b9d0e1 · fixed in ecca618e1e339494911090474ed87742c0f73976; From 857b46027d6f91150797295752581b7155b9d0e1 · fixed in 2aef1b13d5c0285f340512c6c07eb858fd018fd8; From 857b46027d6f91150797295752581b7155b9d0e1 · fixed in 1dced0725e2fae3ac3416274db20a7ff5a46931d; From 857b46027d6f91150797295752581b7155b9d0e1 · fixed in 84c422cea5a45fe56be839f25880f21fd33940cd; From 857b46027d6f91150797295752581b7155b9d0e1 · fixed in 19f94b6fee75b3ef7fbc06f3745b9a771a8a19a4

  • Linux Linux

    5.3

  • KernelLinux

    From 5.3.0 · fixed in 5.10.258; From 5.11.0 · fixed in 5.15.209; From 5.16.0 · fixed in 6.1.175; From 6.2.0 · fixed in 6.6.141; From 6.7.0 · fixed in 6.12.91; From 6.13.0 · fixed in 6.18.33; From 6.19.0 · fixed in 7.0.10

References 8

git.kernel.org