Messages in this thread Patch in this message | | | From | Kangjie Lu <> | Subject | [PATCH v2] net: liquidio: fix a NULL pointer dereference | Date | Mon, 11 Mar 2019 00:02:32 -0500 |
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In case octeon_alloc_soft_command fails, the fix reports the error and returns to avoid NULL pointer dereference.
Signed-off-by: Kangjie Lu <kjlu@umn.edu> --- drivers/net/ethernet/cavium/liquidio/lio_main.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/net/ethernet/cavium/liquidio/lio_main.c b/drivers/net/ethernet/cavium/liquidio/lio_main.c index 9b7819fdc9de..fb6f813cff65 100644 --- a/drivers/net/ethernet/cavium/liquidio/lio_main.c +++ b/drivers/net/ethernet/cavium/liquidio/lio_main.c @@ -1192,6 +1192,11 @@ static void send_rx_ctrl_cmd(struct lio *lio, int start_stop) sc = (struct octeon_soft_command *) octeon_alloc_soft_command(oct, OCTNET_CMD_SIZE, 16, 0); + if (!sc) { + netif_info(lio, rx_err, lio->netdev, + "Failed to allocate octeon_soft_command\n"); + return; + } ncmd = (union octnet_cmd *)sc->virtdptr; -- 2.17.1
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