CVE-2026-52970

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.

Score

CVSS 3.1 5.5 Medium

Status

Modified - 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2026-06-24

Last modified

2026-10-15

Affected products

• Linux Kernel (Linux)
• Simatic S7-1500 Cpu 1518-4 Pndp Mfp (Siemens)
• Simatic S7-1500 Cpu 1518f-4 Pndp Mfp (Siemens)
• Siplus S7-1500 Cpu 1518-4 Pndp Mfp (Siemens)

References

• https://git.kernel.org/stable/c/cdb9a25dd3416d427e8b2753210f8baf44207577
• https://git.kernel.org/stable/c/26ab32ec73941871c97562ee1f39587950dc3b68
• https://git.kernel.org/stable/c/7b96242ceedfe249f158419f3254bcee04173ffe
• https://git.kernel.org/stable/c/ecca618e1e339494911090474ed87742c0f73976
• https://git.kernel.org/stable/c/2aef1b13d5c0285f340512c6c07eb858fd018fd8
• https://git.kernel.org/stable/c/1dced0725e2fae3ac3416274db20a7ff5a46931d
• https://git.kernel.org/stable/c/84c422cea5a45fe56be839f25880f21fd33940cd
• https://git.kernel.org/stable/c/19f94b6fee75b3ef7fbc06f3745b9a771a8a19a4
• https://cert-portal.siemens.com/productcert/html/ssa-019113.html
• https://cert-portal.siemens.com/productcert/html/ssa-457936.html