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| author | Dinghao Liu <dinghao.liu@zju.edu.cn> | 2023-09-23 18:37:23 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-10-10 21:43:40 +0200 |
| commit | 44d3ee21d8e076a62e5d88e3e796ef609d2d144d (patch) | |
| tree | 0b927b5e35bd571f5df04d9d8f9f7d1c686c6ed0 /scripts/stackusage | |
| parent | 7532d4fa92d6635a38abb58fb165b6034dce83d3 (diff) | |
scsi: zfcp: Fix a double put in zfcp_port_enqueue()
commit b481f644d9174670b385c3a699617052cd2a79d3 upstream.
When device_register() fails, zfcp_port_release() will be called after
put_device(). As a result, zfcp_ccw_adapter_put() will be called twice: one
in zfcp_port_release() and one in the error path after device_register().
So the reference on the adapter object is doubly put, which may lead to a
premature free. Fix this by adjusting the error tag after
device_register().
Fixes: f3450c7b9172 ("[SCSI] zfcp: Replace local reference counting with common kref")
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Link: https://lore.kernel.org/r/20230923103723.10320-1-dinghao.liu@zju.edu.cn
Acked-by: Benjamin Block <bblock@linux.ibm.com>
Cc: stable@vger.kernel.org # v2.6.33+
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'scripts/stackusage')
0 files changed, 0 insertions, 0 deletions