# CVE-2026-90152: linux: In the Linux kernel, the following vulnerability has been resolved:  smb/server: fix session leak in ksmbd_session_re...

CVE-2026-90152 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-90152, released September 23, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-90152
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0022
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 17, 2026

## Description

In the Linux kernel, the following vulnerability has been resolved:  smb/server: fix session leak in ksmbd_session_register()  See the procedure below:    smb2_sess_setup     ksmbd_smb2_session_create       __session_create         atomic_set(&sess->refcnt, 2)         hash_add(sessions_table, &sess->hlist, sess->id)     ksmbd_session_register       xa_store(&conn->sessions, sess->id, sess) // fail     ksmbd_user_session_put       atomic_dec(&sess->refcnt) // refcnt is 1, session is not freed  Remove the session from sessions_table and drop its table reference if xa_store() fails.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 13.5 (trixie) | 6.12.111-1 | [DEBIAN-CVE-2026-90152](https://patchblox.com/security/data/fix/linux/debian-cve-2026-90152.md) | Sep 23, 2026 |
| Linux | linux Debian 14 | 7.2.6-1 | [DEBIAN-CVE-2026-90152](https://patchblox.com/security/data/fix/linux/debian-cve-2026-90152.md) | Sep 23, 2026 |
| Linux | linux-6.12 Debian 12.15 (bookworm) | 6.12.111-1~deb12u1 | [DEBIAN-CVE-2026-90152](https://patchblox.com/security/data/fix/linux/debian-cve-2026-90152.md) | Sep 23, 2026 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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