CVE-2026-52970

netfilter: nft_ct: fix missing expect put in obj eval

State: Published
Severity: Not scored
Published: Jun 24, 2026
Updated: Oct 15, 2026
Reserved: Jun 9, 2026

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	857b46027d6f91150797295752581b7155b9d0e1 to before cdb9a25dd3416d427e8b2753210f8baf44207577Affected 857b46027d6f91150797295752581b7155b9d0e1 to before 26ab32ec73941871c97562ee1f39587950dc3b68Affected 857b46027d6f91150797295752581b7155b9d0e1 to before 7b96242ceedfe249f158419f3254bcee04173ffeAffected 857b46027d6f91150797295752581b7155b9d0e1 to before ecca618e1e339494911090474ed87742c0f73976Affected 857b46027d6f91150797295752581b7155b9d0e1 to before 2aef1b13d5c0285f340512c6c07eb858fd018fd8Affected 857b46027d6f91150797295752581b7155b9d0e1 to before 1dced0725e2fae3ac3416274db20a7ff5a46931dAffected 857b46027d6f91150797295752581b7155b9d0e1 to before 84c422cea5a45fe56be839f25880f21fd33940cdAffected 857b46027d6f91150797295752581b7155b9d0e1 to before 19f94b6fee75b3ef7fbc06f3745b9a771a8a19a4Affected
LinuxLinux	5.3Affected before 5.3Not affected 5.10.258 through 5.10.Not affected 5.15.209 through 5.15.Not affected 6.1.175 through 6.1.Not affected 6.6.141 through 6.6.Not affected 6.12.91 through 6.12.Not affected 6.18.33 through 6.18.Not affected 7.0.10 through 7.0.*Not affected 7.1 and laterNot affected

Product

Versions

LinuxLinux

857b46027d6f91150797295752581b7155b9d0e1 to before cdb9a25dd3416d427e8b2753210f8baf44207577Affected
857b46027d6f91150797295752581b7155b9d0e1 to before 26ab32ec73941871c97562ee1f39587950dc3b68Affected
857b46027d6f91150797295752581b7155b9d0e1 to before 7b96242ceedfe249f158419f3254bcee04173ffeAffected
857b46027d6f91150797295752581b7155b9d0e1 to before ecca618e1e339494911090474ed87742c0f73976Affected
857b46027d6f91150797295752581b7155b9d0e1 to before 2aef1b13d5c0285f340512c6c07eb858fd018fd8Affected
857b46027d6f91150797295752581b7155b9d0e1 to before 1dced0725e2fae3ac3416274db20a7ff5a46931dAffected
857b46027d6f91150797295752581b7155b9d0e1 to before 84c422cea5a45fe56be839f25880f21fd33940cdAffected
857b46027d6f91150797295752581b7155b9d0e1 to before 19f94b6fee75b3ef7fbc06f3745b9a771a8a19a4Affected

LinuxLinux

5.3Affected
before 5.3Not affected
5.10.258 through 5.10.*Not affected
5.15.209 through 5.15.*Not affected
6.1.175 through 6.1.*Not affected
6.6.141 through 6.6.*Not affected
6.12.91 through 6.12.*Not affected
6.18.33 through 6.18.*Not affected
7.0.10 through 7.0.*Not affected
7.1 and laterNot affected

References

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