Linux vulnerability

What happened

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.

Affected versions

Linux: 857b46027d6f91150797295752581b7155b9d0e1 through before cdb9a25dd3416d427e8b2753210f8baf44207577 (git); 857b46027d6f91150797295752581b7155b9d0e1 through before 26ab32ec73941871c97562ee1f39587950dc3b68 (git); 857b46027d6f91150797295752581b7155b9d0e1 through before 7b96242ceedfe249f158419f3254bcee04173ffe (git); 857b46027d6f91150797295752581b7155b9d0e1 through before ecca618e1e339494911090474ed87742c0f73976 (git); 857b46027d6f91150797295752581b7155b9d0e1 through before 2aef1b13d5c0285f340512c6c07eb858fd018fd8 (git); 857b46027d6f91150797295752581b7155b9d0e1 through before 1dced0725e2fae3ac3416274db20a7ff5a46931d (git); 857b46027d6f91150797295752581b7155b9d0e1 through before 84c422cea5a45fe56be839f25880f21fd33940cd (git); 857b46027d6f91150797295752581b7155b9d0e1 through before 19f94b6fee75b3ef7fbc06f3745b9a771a8a19a4 (git); 5.3; V3.1.6 through before * (custom) Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

• Apply vendor-provided updates or mitigations.
• Review affected product exposure and access logs.