CVE-2026-23228

smb: server: fix leak of active_num_conn in ksmbd_tcp_new_connection()

State: Published
Severity: Not scored
Published: Feb 18, 2026
Updated: Jun 2, 2026
Reserved: Jan 13, 2026

Description

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().

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	4210c3555db4b38bade92331b153e583261f05f9 to before 6dd2645cf080a75be31fa66063c7332b291f46f0Affected d5d7847e57ac69fa99c18b363a34419bcdb5a281 to before 7ddd69cd1338c6197e1b6b19cec60d99c8633e4fAffected 0d0d4680db22eda1eea785c47bbf66a9b33a8b16 to before 787769c8cc50416af7b8b1a36e6bcd6aaa7680aaAffected 0d0d4680db22eda1eea785c47bbf66a9b33a8b16 to before baf664fc90a6139a39a58333e4aaa390c10d45dcAffected 0d0d4680db22eda1eea785c47bbf66a9b33a8b16 to before cd25e0d809531a67e9dd53b19012d27d2b13425fAffected 0d0d4680db22eda1eea785c47bbf66a9b33a8b16 to before 599271110c35f6b16e2e4e45b9fbd47ed378c982Affected 0d0d4680db22eda1eea785c47bbf66a9b33a8b16 to before 77ffbcac4e569566d0092d5f22627dfc0896b553Affected 5.15.91 to before 5.15.201Affected 6.1.9 to before 6.1.164Affected
LinuxLinux	6.2Affected before 6.2Not affected 5.15.201 through 5.15.Not affected 6.1.164 through 6.1.Not affected 6.6.125 through 6.6.Not affected 6.12.72 through 6.12.Not affected 6.18.11 through 6.18.Not affected 6.19.1 through 6.19.Not affected 7.0 and laterNot affected

Product

Versions

LinuxLinux

4210c3555db4b38bade92331b153e583261f05f9 to before 6dd2645cf080a75be31fa66063c7332b291f46f0Affected
d5d7847e57ac69fa99c18b363a34419bcdb5a281 to before 7ddd69cd1338c6197e1b6b19cec60d99c8633e4fAffected
0d0d4680db22eda1eea785c47bbf66a9b33a8b16 to before 787769c8cc50416af7b8b1a36e6bcd6aaa7680aaAffected
0d0d4680db22eda1eea785c47bbf66a9b33a8b16 to before baf664fc90a6139a39a58333e4aaa390c10d45dcAffected
0d0d4680db22eda1eea785c47bbf66a9b33a8b16 to before cd25e0d809531a67e9dd53b19012d27d2b13425fAffected
0d0d4680db22eda1eea785c47bbf66a9b33a8b16 to before 599271110c35f6b16e2e4e45b9fbd47ed378c982Affected
0d0d4680db22eda1eea785c47bbf66a9b33a8b16 to before 77ffbcac4e569566d0092d5f22627dfc0896b553Affected
5.15.91 to before 5.15.201Affected
6.1.9 to before 6.1.164Affected

LinuxLinux

6.2Affected
before 6.2Not affected
5.15.201 through 5.15.*Not affected
6.1.164 through 6.1.*Not affected
6.6.125 through 6.6.*Not affected
6.12.72 through 6.12.*Not affected
6.18.11 through 6.18.*Not affected
6.19.1 through 6.19.*Not affected
7.0 and laterNot affected

References

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