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In the receive path libfc extracts a cpu number from the ox_id in the fiber channel header and uses that to do a per_cpu_ptr conversion. If, for some reason, a frame is received with an invalid ox_id, per_cpu_ptr will return an invalid pointer and the libfc receive path will panic the system trying to use it. I'm currently looking at such a case, and I don't yet know why a cpu number > nr_cpu_ids is appearing in an exchange id. But adding a sanity check in libfc prevents a system panic, and seems like good idea when dealing with frames coming in from the network. Signed-off-by: Chris Leech <cleech@redhat.com> Acked-by: Johannes Thumshirn <jth@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> |
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| .. | ||
| fc_disc.c | ||
| fc_elsct.c | ||
| fc_exch.c | ||
| fc_fcp.c | ||
| fc_frame.c | ||
| fc_libfc.c | ||
| fc_libfc.h | ||
| fc_lport.c | ||
| fc_npiv.c | ||
| fc_rport.c | ||
| Makefile | ||