CriticalFix available
ksmbd: fix race condition between session lookup and expire
Type: advisorySources: OSV
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.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 6.1.57, 6.5.7
- CVEs
- CVE-2023-52480
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 7 Nov 2026, 00:58 UTC · Revision 1
Source evidence
ksmbd: fix race condition between session lookup and expire
core-osv · Original sourcePublished 29 Feb 2024, 05:43 UTC
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.
osv:CVE-2023-52480
Kernel
Fixed versions: 6.1.57, 6.5.7
Complete source record
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"modified": "2026-10-28T02:30:48.571214524Z",
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