mirror of
https://github.com/torvalds/linux.git
synced 2024-12-27 05:11:48 +00:00
53ff5cf891
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.
Reported-by: luosili <rootlab@huawei.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
|
||
|---|---|---|
| .. | ||
| mgmt | ||
| asn1.c | ||
| asn1.h | ||
| auth.c | ||
| auth.h | ||
| connection.c | ||
| connection.h | ||
| crypto_ctx.c | ||
| crypto_ctx.h | ||
| glob.h | ||
| Kconfig | ||
| ksmbd_netlink.h | ||
| ksmbd_spnego_negtokeninit.asn1 | ||
| ksmbd_spnego_negtokentarg.asn1 | ||
| ksmbd_work.c | ||
| ksmbd_work.h | ||
| Makefile | ||
| misc.c | ||
| misc.h | ||
| ndr.c | ||
| ndr.h | ||
| nterr.h | ||
| ntlmssp.h | ||
| oplock.c | ||
| oplock.h | ||
| server.c | ||
| server.h | ||
| smb2misc.c | ||
| smb2ops.c | ||
| smb2pdu.c | ||
| smb2pdu.h | ||
| smb_common.c | ||
| smb_common.h | ||
| smbacl.c | ||
| smbacl.h | ||
| smbfsctl.h | ||
| smbstatus.h | ||
| transport_ipc.c | ||
| transport_ipc.h | ||
| transport_rdma.c | ||
| transport_rdma.h | ||
| transport_tcp.c | ||
| transport_tcp.h | ||
| unicode.c | ||
| unicode.h | ||
| vfs_cache.c | ||
| vfs_cache.h | ||
| vfs.c | ||
| vfs.h | ||
| xattr.h | ||