This patchset aims to fix an out-of-bounds bug in the phy-ocelot-serdes driver.
Currently, there is an out-of-bounds read on array ctrl->phys, once variable i reaches the maximum array size of SERDES_MAX in the for loop. Quentin Schulz pointed out that SERDES_MAX is a valid value to index ctrl->phys. So, I updated SERDES_MAX to be SERDES6G_MAX + 1 in include/dt-bindings/phy/phy-ocelot-serdes.h. Then I changed the condition in the for loop from i <= SERDES_MAX to i < SERDES_MAX in order to complete the fix. The reason I'm sending this fix as series is because checkpatch reported an error when I first tried to integrate the whole solution into a singe patch. So, changes to dt-bindings should be sent as a separate patch. Changes in v2: - Send the whole series to Kishon Vijay Abraham I, so it can be taken into the PHY tree. - Add Quentin's Reviewed-by to commit log in both patches. Thanks! Gustavo A. R. Silva (2): dt-bindings: phy: Update SERDES_MAX to be SERDES_MAX + 1 phy: ocelot-serdes: fix out-of-bounds read drivers/phy/mscc/phy-ocelot-serdes.c | 4 ++-- include/dt-bindings/phy/phy-ocelot-serdes.h | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) -- 2.7.4
