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| author | Lixiaokeng <lixiaokeng@huawei.com> | 2021-12-20 19:39:06 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-01-11 13:37:11 +0100 |
| commit | e514d2b09750dd6b6b0abb6708b14070c199bc73 (patch) | |
| tree | d5590c6b5997aa6ee24cb656322bef242f55cc18 /net/unix/scm.c | |
| parent | 172b3f506c24a61805b3910b9acfe7159d980b9b (diff) | |
scsi: libiscsi: Fix UAF in iscsi_conn_get_param()/iscsi_conn_teardown()
[ Upstream commit 1b8d0300a3e9f216ae4901bab886db7299899ec6 ]
|- iscsi_if_destroy_conn |-dev_attr_show
|-iscsi_conn_teardown
|-spin_lock_bh |-iscsi_sw_tcp_conn_get_param
|-kfree(conn->persistent_address) |-iscsi_conn_get_param
|-kfree(conn->local_ipaddr)
==>|-read persistent_address
==>|-read local_ipaddr
|-spin_unlock_bh
When iscsi_conn_teardown() and iscsi_conn_get_param() happen in parallel, a
UAF may be triggered.
Link: https://lore.kernel.org/r/046ec8a0-ce95-d3fc-3235-666a7c65b224@huawei.com
Reported-by: Lu Tixiong <lutianxiong@huawei.com>
Reviewed-by: Mike Christie <michael.christie@oracle.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Lixiaokeng <lixiaokeng@huawei.com>
Signed-off-by: Linfeilong <linfeilong@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net/unix/scm.c')
0 files changed, 0 insertions, 0 deletions