From 8005aba69a6440a535a4cc2aed99ffca580847e0 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 21 Jun 2005 15:39:22 -0700 Subject: [PATCH] [SPARC64]: Fix cmsg length checks in Solaris emulation layer. Signed-off-by: David S. Miller --- arch/sparc64/solaris/socket.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/sparc64/solaris/socket.c b/arch/sparc64/solaris/socket.c index ec8e074c4eac..06740582717e 100644 --- a/arch/sparc64/solaris/socket.c +++ b/arch/sparc64/solaris/socket.c @@ -317,8 +317,10 @@ asmlinkage int solaris_sendmsg(int fd, struct sol_nmsghdr __user *user_msg, unsi unsigned long *kcmsg; compat_size_t cmlen; - if(kern_msg.msg_controllen > sizeof(ctl) && - kern_msg.msg_controllen <= 256) { + if (kern_msg.msg_controllen <= sizeof(compat_size_t)) + return -EINVAL; + + if(kern_msg.msg_controllen > sizeof(ctl)) { err = -ENOBUFS; ctl_buf = kmalloc(kern_msg.msg_controllen, GFP_KERNEL); if(!ctl_buf) -- 2.20.1