Re: [PATCH v3] hdlcdrv: Fix divide by zero in hdlcdrv_ioctl

From: Firo Yang Date: Fri, 26 May 2017 22:37:38 +0800 > syszkaller fuzzer triggered a divide by zero, when set calibration > through ioctl(). > > To fix it, test 'bitrate' if it is negative or 0, just return -EINVAL. > > Reported-by: Andrey Konovalov > Signed-off-by: Firo Yang Applied, thank

[PATCH v3] hdlcdrv: Fix divide by zero in hdlcdrv_ioctl

syszkaller fuzzer triggered a divide by zero, when set calibration through ioctl(). To fix it, test 'bitrate' if it is negative or 0, just return -EINVAL. Reported-by: Andrey Konovalov Signed-off-by: Firo Yang --- v2->v3: Just fix divide error and remove netif_running() test. Re