CVE-2023-52480
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix race condition between session lookup and expire Thread A + Thread B ksmbd_sessi…
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | from 5.15 before 5.15.145 from 5.16 before 6.1.57 from 6.2 before 6.5.7 Version 6.6 |
Weakness classification
References
- NVD record
- CVE.org record
- https://git.kernel.org/stable/c/18ced78b0ebccc2d16f426143dc56ab3aad666be
- https://git.kernel.org/stable/c/53ff5cf89142b978b1a5ca8dc4d4425e6a09745f
- https://git.kernel.org/stable/c/a2ca5fd3dbcc665e1169044fa0c9e3eba779202b
- https://git.kernel.org/stable/c/c77fd3e25a51ac92b0f1b347a96eff6a0b4f066f
- https://git.kernel.org/stable/c/18ced78b0ebccc2d16f426143dc56ab3aad666be
- https://git.kernel.org/stable/c/53ff5cf89142b978b1a5ca8dc4d4425e6a09745f
- https://git.kernel.org/stable/c/a2ca5fd3dbcc665e1169044fa0c9e3eba779202b
- https://git.kernel.org/stable/c/c77fd3e25a51ac92b0f1b347a96eff6a0b4f066f