VULNERABILITY INTELLIGENCE

CVE-2023-52480

CVSS score9.8 CRITICAL
EPSS probability0.49%
CISA KEVNot currently listed
Published2024-02-29
Last modified2026-08-15
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix race condition between session lookup and expire Thread A + Thread B ksmbd_session_lookup | smb2_sess_setup sess = xa_load | | | xa_erase(&conn->sessions, sess->id); | | ksmbd_session_destroy(sess) --> kfree(sess) | // UAF! | sess->last_active = jiffies | + This patch add rwsem to fix race condition between ksmbd_session_lookup and ksmbd_expire_session.

Weakness classification

  • nvd@nist.gov: CWE-362

Primary references