scsi: mpt3sas: Avoid out-of-bounds cpumask_of_node() call in _base_assign_reply_queues()

dev_to_node() can return NUMA_NO_NODE (-1) on systems without NUMA
topology information for the PCI device, such as single-socket boards
that don't expose device-to-node affinity. Passing -1 directly into
cpumask_of_node() indexes node_to_cpumask_map[-1], an out-of-bounds
array read caught by UBSAN:

  UBSAN: array-index-out-of-bounds in arch/x86/include/asm/topology.h:72:28
  index -1 is out of range for type 'cpumask *[1024]'

Fall back to cpu_online_mask when no NUMA node is available, rather than
assuming dev_to_node() always returns a valid node index.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=221294
Suggested-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Fixes: 728bbc6cbff7 ("scsi: mpt3sas: Affinity high iops queues IRQs to local node")
Signed-off-by: Ivy Lopez <skunkolee@gmail.com>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Link: https://patch.msgid.link/20260825190313.24013-1-skunkolee@gmail.com
Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>

0 files changed, 0 insertions, 0 deletions