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| author | James Smart <jsmart2021@gmail.com> | 2021-04-12 04:31:18 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2021-04-13 08:39:13 +0300 |
| commit | 724f6b43a3492b02e2ebc88f9fb749d1405098e2 (patch) | |
| tree | eb5790b6568fe9906c92488135890e3679bc2336 /tools/perf/scripts/python/exported-sql-viewer.py | |
| parent | 304ee43238fed517faa123e034b593905b8679f8 (diff) | |
| download | linux-724f6b43a3492b02e2ebc88f9fb749d1405098e2.tar.xz | |
scsi: lpfc: Fix use-after-free on unused nodes after port swap
During target port swap, the swap logic ignores the DROPPED flag in the
nodes. As a node then moves into the UNUSED state, the reference count will
be dropped. If a node is later reused and moved out of the UNUSED state, an
access can result in a use-after-free assert.
Fix by having the port swap logic propagate the DROPPED flag when switching
nodes. This will avoid reference from being dropped.
Link: https://lore.kernel.org/r/20210412013127.2387-8-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions