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| author | Mike Christie <michael.christie@oracle.com> | 2023-01-17 22:39:37 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2023-01-19 03:14:56 +0300 |
| commit | f484a794e4ee2a9ce61f52a78e810ac45f3fe3b3 (patch) | |
| tree | c110ea8faf7e5b614aa67e2133a373887fd8298a /drivers/scsi/device_handler/scsi_dh_alua.c | |
| parent | 6f1d64b13097e85abda0f91b5638000afc5f9a06 (diff) | |
| download | linux-f484a794e4ee2a9ce61f52a78e810ac45f3fe3b3.tar.xz | |
scsi: iscsi_tcp: Fix UAF during login when accessing the shost ipaddress
If during iscsi_sw_tcp_session_create() iscsi_tcp_r2tpool_alloc() fails,
userspace could be accessing the host's ipaddress attr. If we then free the
session via iscsi_session_teardown() while userspace is still accessing the
session we will hit a use after free bug.
Set the tcp_sw_host->session after we have completed session creation and
can no longer fail.
Link: https://lore.kernel.org/r/20230117193937.21244-3-michael.christie@oracle.com
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Acked-by: Ding Hui <dinghui@sangfor.com.cn>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/device_handler/scsi_dh_alua.c')
0 files changed, 0 insertions, 0 deletions