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| author | Bert Kenward <bkenward@solarflare.com> | 2017-08-15 14:55:32 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-08-15 17:19:34 -0700 |
| commit | 61deee962896f7eb547adc66ef09c8f1e7ddf7d7 (patch) | |
| tree | a342ee636b165b5ef500aa18d79f2ff55f43427c /lib/mpi/mpiutil.c | |
| parent | c90e95147c27b1780e76c6e8fea1b5c78d7d387f (diff) | |
sfc: don't try and read ef10 data on non-ef10 NIC
The MAC stats command takes a port ID, which doesn't exist on
pre-ef10 NICs (5000- and 6000- series). This is extracted from the
NIC specific data; we misinterpret this as the ef10 data structure,
causing us to read potentially unallocated data. With a KASAN kernel
this can cause errors with:
BUG: KASAN: slab-out-of-bounds in efx_mcdi_mac_stats
Fixes: 0a2ab4d988d7 ("sfc: set the port-id when calling MC_CMD_MAC_STATS")
Reported-by: Stefano Brivio <sbrivio@redhat.com>
Tested-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: Bert Kenward <bkenward@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'lib/mpi/mpiutil.c')
0 files changed, 0 insertions, 0 deletions