CVE-2023-52480
EPSS
0.04 % (16th)
Advisories
2
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.
- CVE Status
- PUBLISHED
- CNA
- kernel.org
- Published Date
-
2024-02-29 06:15:46
(6 months ago) - Updated Date
-
2024-02-29 13:49:29
(6 months ago)
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