Re: [PATCH] atm: iphase: Avoid copying pointers to user space.

From: Fuqian Huang Date: Tue, 14 May 2019 23:11:59 +0800 > When ia_cmds.sub_cmd is MEMDUMP_DEV in ia_ioctl, > nullify the pointer fields of iadev before copying > the whole structure to user space. > > Signed-off-by: Fuqian Huang Honestly I'd rather you just remove the MEMDUMP_DEV ioctl altoge

[PATCH] atm: iphase: Avoid copying pointers to user space.

When ia_cmds.sub_cmd is MEMDUMP_DEV in ia_ioctl, nullify the pointer fields of iadev before copying the whole structure to user space. Signed-off-by: Fuqian Huang --- drivers/atm/iphase.c | 73 +--- 1 file changed, 70 insertions(+), 3 deletions(-)