CVE-2026-23228
smb: server: fix leak of active_num_conn in ksmbd_tcp_new_connection()
CVE-2026-23228 is fixed in 58 products on 1 platform, first by DEBIAN-CVE-2026-23228, released February 18, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
6.5
Moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0014
3rd percentile
In the Linux kernel, the following vulnerability has been resolved: smb: server: fix leak of active_num_conn in ksmbd_tcp_new_connection() On kthread_run() failure in ksmbd_tcp_new_connection(), the transport is freed via free_transport(), which does not decrement active_num_conn, leaking this counter. Replace free_transport() with ksmbd_tcp_disconnect().
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool · amzn 2023 | 1:6.1.164-196.303.amzn2023 | ALAS2023-2026-1491 | Mar 16, 2026 |
| bpftool-debuginfo · amzn 2023 | 1:6.1.164-196.303.amzn2023 | ALAS2023-2026-1491 | Mar 16, 2026 |
| kernel · amzn 2023 | 1:6.1.164-196.303.amzn2023 | ALAS2023-2026-1491 | Mar 16, 2026 |
| kernel-debuginfo · amzn 2023 | 1:6.1.164-196.303.amzn2023 | ALAS2023-2026-1491 | Mar 16, 2026 |
| kernel-debuginfo-common-aarch64 · amzn 2023 | 1:6.1.164-196.303.amzn2023 | ALAS2023-2026-1491 | Mar 16, 2026 |
| kernel-debuginfo-common-x86_64 · amzn 2023 | 1:6.1.164-196.303.amzn2023 | ALAS2023-2026-1491 | Mar 16, 2026 |
| kernel-devel · amzn 2023 | 1:6.1.164-196.303.amzn2023 | ALAS2023-2026-1491 | Mar 16, 2026 |
| kernel-headers · amzn 2023 | 1:6.1.164-196.303.amzn2023 | ALAS2023-2026-1491 | Mar 16, 2026 |
| kernel-libbpf · amzn 2023 | 1:6.1.164-196.303.amzn2023 | ALAS2023-2026-1491 | Mar 16, 2026 |
| kernel-libbpf-debuginfo · amzn 2023 | 1:6.1.164-196.303.amzn2023 | ALAS2023-2026-1491 | Mar 16, 2026 |
| kernel-libbpf-devel · amzn 2023 | 1:6.1.164-196.303.amzn2023 | ALAS2023-2026-1491 | Mar 16, 2026 |
| kernel-libbpf-static · amzn 2023 | 1:6.1.164-196.303.amzn2023 | ALAS2023-2026-1491 | Mar 16, 2026 |
| kernel-livepatch-6.1.164-196.303 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-1491 | Mar 16, 2026 |
| kernel-modules-extra · amzn 2023 | 1:6.1.164-196.303.amzn2023 | ALAS2023-2026-1491 | Mar 16, 2026 |
| kernel-modules-extra-common · amzn 2023 | 1:6.1.164-196.303.amzn2023 | ALAS2023-2026-1491 | Mar 16, 2026 |
| kernel-tools · amzn 2023 | 1:6.1.164-196.303.amzn2023 | ALAS2023-2026-1491 | Mar 16, 2026 |
| kernel-tools-debuginfo · amzn 2023 | 1:6.1.164-196.303.amzn2023 | ALAS2023-2026-1491 | Mar 16, 2026 |
| kernel-tools-devel · amzn 2023 | 1:6.1.164-196.303.amzn2023 | ALAS2023-2026-1491 | Mar 16, 2026 |
| kernel-uek · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-core · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-core · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-core · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-core · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-devel · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-devel · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules-core · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules-core · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules-deprecated · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules-deprecated · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules-desktop · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules-desktop · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules-extra · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules-extra · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules-extra-netfilter · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules-extra-netfilter · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules-usb · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules-usb · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules-wireless · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-debug-modules-wireless · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-devel · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-devel · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-doc · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-doc · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules-core · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules-core · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules-deprecated · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules-deprecated · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules-desktop · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules-desktop · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules-extra · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules-extra · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules-extra-netfilter · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules-extra-netfilter · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules-usb · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules-usb · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules-wireless · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-modules-wireless · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-tools · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek-tools · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-core · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-core · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-devel · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-devel · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules-core · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules-core · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules-deprecated · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules-deprecated · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules-desktop · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules-desktop · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules-extra · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules-extra · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules-extra-netfilter · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules-extra-netfilter · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules-usb · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules-usb · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules-wireless · ol 10 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| kernel-uek64k-modules-wireless · ol 9 | 0:6.12.0-200.74.27.el9uek | ELSA-2026-50160 | Mar 20, 2026 |
| linux · Debian 12.15 (bookworm) | 6.1.164-1 | DEBIAN-CVE-2026-23228 | Feb 18, 2026 |
| linux · Debian 13.5 (trixie) | 6.12.73-1 | DEBIAN-CVE-2026-23228 | Feb 18, 2026 |
| linux · Debian 14 | 6.18.12-1 | DEBIAN-CVE-2026-23228 | Feb 18, 2026 |
| perf · amzn 2023 | 1:6.1.164-196.303.amzn2023 | ALAS2023-2026-1491 | Mar 16, 2026 |
| perf-debuginfo · amzn 2023 | 1:6.1.164-196.303.amzn2023 | ALAS2023-2026-1491 | Mar 16, 2026 |
| python3-perf · amzn 2023 | 1:6.1.164-196.303.amzn2023 | ALAS2023-2026-1491 | Mar 16, 2026 |
| python3-perf-debuginfo · amzn 2023 | 1:6.1.164-196.303.amzn2023 | ALAS2023-2026-1491 | Mar 16, 2026 |
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