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| author |   Mike Christie <michael.christie@oracle.com> | 2021-10-04 16:06:08 -0500 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2021-10-04 23:40:11 -0400 |
| commit | 258aad75c62146453d03028a44f2f1590d58e1f6 (patch) | |
| tree | e73565d7042a579bd43f03da4445ed91f77af6e7 /scripts/gdb/linux/utils.py | |
| parent | scsi: lpfc: Fix memory overwrite during FC-GS I/O abort handling (diff) | |
| download | wireguard-linux-258aad75c62146453d03028a44f2f1590d58e1f6.tar.xz wireguard-linux-258aad75c62146453d03028a44f2f1590d58e1f6.zip | |
scsi: iscsi: Fix iscsi_task use after free
Commit d39df158518c ("scsi: iscsi: Have abort handler get ref to conn")
added iscsi_get_conn()/iscsi_put_conn() calls during abort handling but
then also changed the handling of the case where we detect an already
completed task where we now end up doing a goto to the common put/cleanup
code. This results in a iscsi_task use after free, because the common
cleanup code will do a put on the iscsi_task.
This reverts the goto and moves the iscsi_get_conn() to after we've checked
if the iscsi_task is valid.
Link: https://lore.kernel.org/r/20211004210608.9962-1-michael.christie@oracle.com
Fixes: d39df158518c ("scsi: iscsi: Have abort handler get ref to conn")
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'scripts/gdb/linux/utils.py')
0 files changed, 0 insertions, 0 deletions