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authorDavid S. Miller <davem@davemloft.net>2005-06-21 15:39:22 -0700
committerDavid S. Miller <davem@davemloft.net>2005-06-21 15:39:22 -0700
commit8005aba69a6440a535a4cc2aed99ffca580847e0 (patch)
treed15f836f483ec374751fd9eda4a4f7a8b816eff5 /arch/sparc64
parent1d345dac1f30af1cd9f3a1faa12f9f18f17f236e (diff)
downloadblackbird-op-linux-8005aba69a6440a535a4cc2aed99ffca580847e0.tar.gz
blackbird-op-linux-8005aba69a6440a535a4cc2aed99ffca580847e0.zip
[SPARC64]: Fix cmsg length checks in Solaris emulation layer.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64')
-rw-r--r--arch/sparc64/solaris/socket.c6
1 files 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)
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